Beginner's guide
A step-by-step walkthrough of a complete flight in the LVFR A380-800 for Microsoft Flight Simulator, from a cold dark gate to shutdown at your destination. If this is your first time in a full glass-cockpit airliner, start at Chapter 1.
Also in the docs
Getting to know the cockpit
Before your first flight, it helps to know what you are looking at. The A380 uses a "glass cockpit" — almost everything is shown on large screens rather than traditional round gauges. This chapter maps every major display and panel so nothing catches you off guard.
The screens
AP1/AP2) and auto-thrust (A/THR) buttons are also on this panel.The overhead panel
The large panel above and behind the pilots' heads contains switches for every aircraft system: electrics, hydraulics, fuel, air conditioning, and lighting. For a basic flight you only need a small section of it — the electrical switches and the ADIRS knobs for IRS alignment.
The pedestal
The console between the two seats contains the four engine thrust levers, the flap lever, the speedbrake lever, the CDU keyboards, the Radio Management Panels (RMP) for tuning frequencies, and the parking brake.
Powering up from cold & dark
Starting "cold and dark" means the aircraft has no electrical power at all — just as it would be parked overnight at a real gate. You need to bring systems on in the right order before anything else can happen.
Step-by-step
BAT 1 and BAT 2 to ON. At this point the screens are still dark — the batteries alone do not power the displays.EXT PWR button will illuminate with an AVAIL legend. Press it to accept. All screens light up.NAV. The displays will show red flags and the word ALIGN. This is normal. The navigation computers need approximately 11 minutes to calculate their exact position using internal gyroscopes.What to do during the 11-minute wait
- Open the EFB and enter your fuel quantity and passenger weight
- Start programming the CDU with your route (see Chapter 3)
- Tune your departure radio frequency on the RMP panels
- Set the transponder squawk code on the SURV page in the CDU
When alignment is complete, the red flags disappear and your current position appears on the ND map.
Setting up the flight computer
The CDU (Control Display Unit) is where you tell the aircraft everything it needs to know about the flight. For a standard route you only need four pages: INIT, FUEL&LOAD, F-PLN, and PERF.
INIT page — start here
Press the INIT button on the CDU keypad.
EGLL/KJFK. Press the button next to this field.370 and press the button next to CRZ FL.30 as a safe starting point.FUEL & LOAD page
From the CDU menu, scroll to and select FUEL&LOAD.
F-PLN page — your route
Press F-PLN. Initially you will see just your departure and destination airports.
- Adding a SID — press the button next to your departure airport, select DEPARTURE, choose your runway, then pick a SID from the list. Press INSERT.
- Adding waypoints manually — type a waypoint ICAO name in the scratchpad at the bottom, then press the button next to where you want to insert it.
- Adding a STAR and approach — press the button next to your destination, select ARRIVAL, choose runway, STAR, and approach type. Press INSERT.
Loading a route automatically
Hand-typing the route works, but most of the time you'll load it from somewhere else. There are three common ways to get a full flight plan into the CDU without entering every waypoint by hand — which one you use depends on your simulator version.
1 — SimBrief import (EFB)
SimBrief is a free online flight planner (part of Navigraph). You build your route on simbrief.com — it generates an OFP (operational flight plan) with the airways, SID, STAR, cruise altitude, cost index, and a fuel and payload breakdown.
2 — MSFS 2020 world map (loads on spawn)
In Microsoft Flight Simulator 2020, you can build your flight plan on the sim's main World Map screen before you start the flight — pick departure and arrival, choose a runway, SID, STAR, and routing (or load a .pln file).
When you then spawn into the A380, that world-map flight plan is automatically loaded into the CDU. You'll find your route already on the F-PLN page when you load in — no manual entry needed to get started.
3 — MSFS 2024 native EFB
In Microsoft Flight Simulator 2024 the flight-planning workflow changed. Rather than relying on the world-map-to-CDU spawn behaviour, FS2024 uses its own built-in native EFB (the simulator's EFB, separate from the aircraft's tablet) to create and edit the flight plan.
A flight plan built with the FS2024 native EFB loads into the A380 CDU. So on FS2024, the recommended path is: build or adjust your plan in the native FS2024 EFB, and it syncs into the aircraft's FMS.
What you will see on the map
After programming, your route appears as a magenta line on the ND. Computed markers appear along it:
Performance page — takeoff speeds
Press PERF then select TO (Takeoff). The CDU calculates three speeds from your weight and runway:
Engine start & taxi
The A380 has four engines, all started using compressed air from the APU (a small jet engine in the tail). Engine start is managed from the overhead panel and monitored on the ECAM ENG page.
Starting the APU
APU MASTER switch to ON. Wait a couple of seconds.APU START button. You will hear the APU spinning up. The SD automatically switches to the APU page so you can monitor it.Starting the engines
Start sequence: 2 → 3 → 1 → 4 (inner engines first to minimise jet blast risk at the gate).
ENG MODE switch to IGN/START.Before taxi
- Set your squawk code — CDU →
SURV— enter 4-digit code and set mode to ALT - Check the ECAM WHEEL page — all gear uplocks green, all doors closed
- Set flaps for takeoff — CONF 1+F or CONF 2 depending on runway
- Arm ground spoilers — move the speedbrake lever to ARM
ETACS taxi camera
The A380 has a real-world camera mounted beneath the fuselage called ETACS (External and Taxiing Aid Camera System). It shows what is directly under the aircraft — very useful for judging clearance at tight gates. Select it from the ECAM Control Panel to display the view on the SD screen.
BTV — Brake to Vacate setup
Before you leave the gate, you can pre-select which runway exit you want to use at your destination. When the airport ground map (OANS) is shown on the ND, select your target exit from the list. The BTV system stores this and automatically applies the correct braking on landing so you roll out to that exact exit — no manual braking needed. More on using BTV in Chapter 8.
Takeoff & climb
The A380 uses fly-by-wire: your sidestick sends commands to a flight control computer rather than moving surfaces directly. The computer prevents you from exceeding structural limits, making the aircraft very stable but slightly different from smaller planes.
FCU setup before takeoff
---. The computer picks the optimal speed for each phase automatically.Thrust detents
For takeoff: advance the levers to FLEX (or TOGA). Auto-thrust arms itself automatically.
Calibrating hardware throttles (EFB)
If you fly with a physical throttle (a HOTAS or a dedicated Airbus throttle quadrant), it needs to be calibrated so your hardware positions line up with the aircraft's virtual detents — IDLE, CL, MCT/FLEX, and TOGA. This matters because the A380's auto-thrust is detent-based: a lever resting even slightly outside the CL detent will disconnect A/THR. Without calibration, your hardware "click" positions won't land where the aircraft expects them.
The current method uses the aircraft's EFB throttle calibration page:
The takeoff roll
- At V1 — do not abort. You are committed to flying.
- At VR — gently pull the sidestick back. Aim for 10–12° nose-up attitude. Follow the green flight director bars on the PFD.
- At V2 — maintain this speed or above for best engine-failure climb performance.
After liftoff
AP1 on the FCU once above 100 feet in a stable climb. The PFD top strip shows AP1 in green.A/THR on the FCU. The label A/THR appears on the PFD.Cruise
Once levelled off at cruise altitude, the autopilot and auto-thrust manage everything. Your job is to monitor the systems, update the flight plan if needed, and prepare for descent in advance.
The ECAM Cruise page
Shortly after gear retraction in climb, the SD automatically switches to the CRUISE page. It shows two areas:
- Left — Fuel: fuel flow for each engine (kg/h) and total fuel used since engine start. Cross-check these against your fuel plan occasionally.
- Right — Air: Cabin Altitude (CAB ALT), pressure differential (DELTA P), and target cabin temperatures for cockpit, passenger decks, and cargo.
The ND map in cruise
Your route continues as a magenta line. Watch for two important markers:
Step climbs
On long flights the aircraft becomes lighter as fuel burns off, allowing it to fly more efficiently at a higher altitude. Step climbs are mid-flight altitude increases — typically 2,000 feet at a time. To plan one: CDU → VERT REV on a cruise waypoint → STEP ALTS. When you reach the step point, dial the new altitude on the FCU and the autopilot climbs automatically.
Traffic & weather on the ND
Both are off by default. To enable:
- Traffic — press the
TRAFbutton on the EFIS panel (left of the FCU). Other aircraft appear as symbols on the ND. TCAS collision warnings remain active regardless. - Weather — press the
WXbutton on the EFIS panel. Weather radar overlay appears on the ND.
Descent planning & approach preparation
Good approach preparation starts 20–30 minutes before the T/D marker — well before you start going down. The A380 approach system is highly automated but needs the right data entered in advance.
Step 1 — Get the destination weather
Listen to the ATIS (Automatic Terminal Information Service) at your destination — a recorded broadcast with active runway, wind, visibility, QNH pressure setting, and conditions. Note the active runway and QNH; you will need them shortly.
Step 2 — Set up the arrival procedure
On the CDU F-PLN page, press the button next to your destination airport → ARRIVAL. Select:
- Runway — the active runway from the ATIS
- STAR — Standard Terminal Arrival Route — the routing from cruise airspace to the approach
- Approach — the type of approach, e.g.
ILS 27L
Press INSERT to confirm. The STAR and approach legs appear on the ND map.
Step 3 — PERF APPR page
CDU → PERF → APPR.
1013.CONF FULL is standard for most arrivals.Step 4 — Enable the ILS display
The CDU auto-tunes the ILS frequency when you selected the approach. To display the ILS needles on the PFD, press the LS button on the EFIS panel (left of the FCU). Two extra scales appear on the PFD: a vertical scale for glideslope and a horizontal scale for localizer.
Initiating the descent
The aircraft will not start descending on its own at T/D — you must command it.
Approach & landing
The approach phase is where everything comes together. The autopilot manages runway alignment and glidepath while the flight computer manages speed through each flap setting. Your job is to monitor, configure, and be ready to intervene.
Approach phase activation
Activates automatically when two conditions are met together: you are within approximately 7,200 feet above the destination's elevation AND the flight plan is being tracked in NAV or LOC mode. You can also activate manually: CDU → PERF → APPR → ACTIVATE APPR PHASE.
Flap extension — managed speed
In managed speed mode the aircraft follows a defined sequence tied to flap position. Speeds appear as coloured markers on the PFD speed tape.
Gear down
Lower the gear when established on the approach, typically at or before 4 nautical miles from the threshold. The ECAM automatically shows the WHEEL page — confirm three green gear symbols.
ILS capture
With AP1 engaged and approach armed (press APPR on the FCU):
- LOC captures first as you intercept the extended runway centreline — the PFD shows LOC in green.
- G/S captures as you cross the glideslope beam, typically 4–5 nm out — the PFD shows G/S in green.
The aircraft then tracks the ILS beam automatically, descending and following the centreline.
BTV — Brake to Vacate
If you pre-selected an exit in Chapter 4, BTV is now ready. After touchdown it applies the brakes automatically to bring you to taxi speed exactly at your chosen exit. No manual brake input needed. BTV disengages automatically once you vacate the runway.
Manual landing technique
Disengage the autopilot at any point — many pilots disconnect around 500 feet AGL. Auto-thrust can remain on.
- At approx. 50 feet — begin the flare: gently raise the nose by 2–3°
- At approx. 30 feet — reduce thrust to idle
- On touchdown — ground spoilers deploy automatically (if armed); apply reverse thrust; use normal braking
Go-around
If you decide not to land at any point during the approach:
After landing & shutdown
After a long flight, the shutdown process is straightforward. The main steps are parking safely, shutting down the engines, and optionally returning to cold and dark.
Clearing the runway
- BTV disengages automatically once you clear the runway
- Apply parking brake briefly if you need to stop and configure before taxiing
- Retract flaps to 0 using the flap lever
- Confirm taxi clearance with ATC if on a network
Taxiing to the gate
Taxi at 10–15 knots on straight sections, slower on turns. Select ETACS on the ECAM for the belly camera view — especially useful for judging clearance near the jetbridge and ground equipment as you enter the stand.
Engine shutdown
EXT PWR to accept. This takes the electrical load off the engines.APU shutdown
Full cold & dark
To leave the aircraft completely powered off:
- Turn all three ADIRS / IRS knobs to OFF
- Turn off
BAT 1andBAT 2
All screens go dark. The aircraft is cold and dark again.
Quick reference — full flow
A condensed checklist covering all nine chapters in sequence. Use it as a reminder once you know the procedures.
BAT 1 + BAT 2 → ONEXT PWR ONNAV (wait ~11 min for alignment)AP1 ON, levers to CL detent, A/THR ONTRAF ON, WX ON as desiredLS button ON (EFIS panel) — ILS needles appear on PFDAPPR to arm approach modesEXT PWR ONFrequently asked questions
Common questions answered in plain language. Click any question to expand it.
First steps
Why are all the screens dark when I load in?
This is intentional. When you spawn cold and dark at a gate, the plane has no electrical power — just like the real aircraft parked overnight. Turn on the batteries and external ground power on the overhead panel to bring everything to life.
The screens did a green flash when I powered up. Is something wrong?
Completely normal. The safety test overlay is a brief green message that appears on the PFD, ND, EWD and SD right after the batteries come on. It simulates the real aircraft's built-in test and clears on its own after a few seconds.
The map shows "ALIGN" and red flags. What do I do?
Turn the three IRS knobs on the overhead panel to NAV. Alignment takes about 11 minutes from cold and dark. Until it finishes, the map is blank and some PFD indicators show red flags — this is correct. If you spawned on a runway or in the air, the IRS pre-aligns automatically.
Flight planning & setup
How do I load a flight plan into the CDU without typing every waypoint?
There are three common ways, and which you use depends on your simulator version: (1) SimBrief import via the aircraft EFB — works on both sim versions; (2) on MSFS 2020, build the plan on the sim's world map and it loads into the CDU automatically when you spawn; (3) on MSFS 2024, build the plan in the native FS2024 EFB and it loads into the CDU. Chapter 3 walks through all three step by step.
How does SimBrief import work?
SimBrief is a free online flight planner (part of Navigraph). Generate your OFP on simbrief.com first, then open the SimBrief / import page on the aircraft EFB and enter your numeric SimBrief Pilot ID (found in your SimBrief account settings). The EFB fetches your latest OFP and imports the route — waypoints, airways, SID, STAR — plus cruise level and cost index, and can pre-fill the fuel and payload. It works the same way on both FS2020 and FS2024.
I made a flight plan on the MSFS 2020 world map — is it already in the aircraft?
Yes. On MSFS 2020, a flight plan built on the world map (departure, arrival, runway, SID, STAR, or a loaded .pln) is automatically loaded into the CDU when you spawn into the A380. Check the F-PLN page and the ND after loading in — world-map routes are sometimes simplified, so you may want to refine the SID, STAR, and approach in the CDU.
I'm on MSFS 2024 and my world-map plan didn't load. What do I do?
FS2024 changed the workflow. Instead of the world-map-to-CDU spawn behaviour, MSFS 2024 uses its own built-in native EFB (the simulator's EFB, separate from the aircraft tablet) to build the flight plan — and a plan made there loads into the A380 CDU. So on FS2024, build or adjust your route in the native FS2024 EFB. (SimBrief import via the aircraft EFB also works on FS2024.) Caveat: the EFB plan only transfers into the CDU correctly once you have actually spawned into the aircraft — make sure the flight has loaded and you're in the cockpit before expecting the route in the FMS. If it looks wrong, give it a moment after spawn and re-check the F-PLN page.
Do I need to calibrate my hardware throttle, and how?
If you fly with a physical throttle, yes — it should be calibrated so your hardware positions line up with the virtual detents (IDLE, CL, MCT/FLEX, TOGA). The A380's auto-thrust is detent-based, so a lever sitting even slightly outside CL will disconnect A/THR. Use the EFB throttle calibration page: move the lever to each detent in turn and capture it, then save and test against the FMA. The calibration is stored per aircraft, so re-check it if you switch livery or variant. Keyboard/simple-controller users can use the "set throttle to detent" key bindings instead. Chapter 5 has the full procedure.
My auto-thrust keeps disconnecting on its own — why?
The most common cause is a hardware throttle lever resting just outside the CL detent band, which disconnects A/THR. Calibrate your throttle on the EFB so CL is a clean, repeatable position. Any time the A/THR label disappears from the PFD without you pressing the button, check the lever positions first.
The map (ND)
I can't see any traffic on the map.
Press the TRAF button on the EFIS panel (left of the FCU). Traffic display is off by default. The TCAS collision avoidance system is always active regardless — you still get audio warnings.
Why doesn't the weather radar show on the map?
Press the WX button on the EFIS panel. Weather is off by default. This controls whether weather is drawn on the map — the underlying weather system has a separate power switch on the overhead panel (SURV section).
What is the dashed circle around my aircraft?
That is the Energy Circle. It shows roughly how far the aircraft needs to fly to descend from its current altitude to landing. If your destination is inside the circle you may need to start descending sooner. It only appears within 180 nautical miles of your destination.
What are T/C, T/D, and DECEL on the route?
These are computed flight path markers: T/C = Top of Climb (where you reach cruise altitude), T/D = Top of Descent (where to start going down), DECEL = where to begin slowing for the approach, S/C = a speed restriction point. The FMS / CDU deep dive explains why they move.
ECAM pages (SD)
How do I change which system page is shown on the lower screen?
Use the ECAM Control Panel (ECP) — the panel with labelled buttons below the SD. Each button calls up that system page. The ALL button cycles through all pages one at a time.
The lower screen keeps switching pages on its own. Why?
The ECAM shows the most relevant page automatically: DOOR at the gate, WHEEL during takeoff/landing roll, CRUISE once airborne with gear up, APU during APU start/shutdown, and the relevant system page for any active warning. You can override it manually at any time.
What is "CAB ALT" on the pressurisation page?
Cabin Altitude — how high the air pressure inside feels to passengers. Flying at 40,000 feet, the cabin is typically pressurised to 6,000–8,000 feet equivalent. A reading in that range is completely normal. It is only a problem above ~10,000 feet.
Autopilot & auto-thrust
How do I engage the autopilot?
Press AP1 or AP2 on the FCU. It only engages if the aircraft is in a stable state — generally above 100 feet after takeoff. A green AP1 or AP2 indicator appears on the PFD to confirm.
What is the difference between managed and selected speed?
Managed speed (FCU window shows ---) means the computer picks the most efficient speed for the current flight phase. Selected speed means you dial in a specific speed manually with the FCU knob, overriding the computer.
The plane pitched up uncontrollably when hand-flying. Is that a bug?
This was a known issue with the pitch trim system that has been fixed. The current build is stable and neutral in pitch during manual flight.
Approach & landing
The ILS needles don't show on the PFD.
Two things are needed: (1) The ILS frequency must be tuned — the CDU does this automatically when you select an ILS approach. (2) Press the LS button on the EFIS panel to enable the ILS scale on the PFD. Without pressing LS the needles stay hidden even if tuned.
What is BTV and how do I use it?
BTV (Brake to Vacate) lets you choose a runway exit and the system brakes automatically to reach taxi speed exactly at that exit. Select your exit on the ND airport map (OANS) before departure. BTV activates on touchdown and releases once you clear the runway.
Advanced systems
Deeper dives into the automation behind the A380. Where the Beginner guide tells you which buttons to press, these pages explain what the systems are actually doing — so you can read the aircraft instead of just operating it. Best tackled once you are comfortable flying a full route.
Flight Mode Annunciator (FMA)
The FMA is the single most important read-out in the cockpit during automated flight. It is a narrow strip at the very top of the PFD that tells you exactly what every automation system is doing at any given moment. Misreading it — or ignoring it — is the root cause of most unexpected automation behaviour.
What is the FMA?
Every time you press a button on the FCU, move a knob, or the aircraft transitions through a flight phase, the autopilot and auto-thrust change their active modes. The FMA tells you what those modes are in real time. Real-world Airbus doctrine requires pilots to call out every FMA change — "Speed, Climb, Nav" — to confirm the automation did what was expected and nothing unexpected.
As a simmer, developing the habit of glancing at the FMA after every FCU input is the single biggest upgrade you can make to your scan.
The 5 columns — anatomy
The FMA strip is divided into five columns by thin vertical divider lines. Reading left to right:
Colour code
Every text element on the FMA has a specific colour with a specific meaning. You should recognise these without having to think:
Column 1 — Auto-thrust modes
The leftmost column tells you what the auto-thrust system is commanding. There is a crucial distinction between thrust law (A/THR is controlling engine output directly) and speed law (A/THR is maintaining a target speed by adjusting thrust continuously).
| FMA text | What it means | When it appears |
|---|---|---|
| SPEED | Speed law — A/THR adjusts thrust to hold a managed or selected speed target. This is the normal cruise and approach state. | Cruise, approach, whenever speed is managed |
| MACH | Same as SPEED but using Mach as the reference. Replaces SPEED above the IAS/Mach crossover altitude. | High-altitude cruise (roughly FL280+) |
| THR CLB | Thrust law — A/THR commands climb thrust rating. The autopilot manages pitch to chase speed; A/THR is pinned at CLB thrust. | Managed climb. Expect speed to wander slightly. |
| THR IDLE | Thrust law — A/THR commands idle thrust. Aircraft descends or decelerates under autopilot pitch control. | Open descent (OP DES), managed descent (DES) path-following |
| THR MCT | Maximum continuous thrust — used as the upper limit during single-engine operations. | Engine-out scenarios |
| THR TOGA | Full takeoff/go-around thrust commanded. | Takeoff roll, go-around initiation |
| THR FLEX | Reduced (flex) takeoff thrust. Calculated from your FLEX temperature entry on the EFB. | Takeoff with flex thrust selected |
| A.FLOOR | Alpha-floor protection — angle of attack exceeded a threshold. A/THR commanded to TOGA regardless of any other selection. Amber. | Stall protection activation. Demands immediate attention. |
| TOGA LK | A.FLOOR has triggered and locked TOGA thrust. Thrust cannot be reduced until the pilot explicitly disconnects A/THR and re-engages. | After A.FLOOR — thrust is frozen at TOGA |
| RETARD | A/THR commands thrust reduction to idle — used during flare. Flashes briefly. | Last ~20 ft during autoland flare |
Column 2 — Vertical modes
This column shows how the autopilot is managing pitch and altitude. Vertical modes fall into two families: managed (the FMS chooses the target) and selected (you dialled a target on the FCU).
| FMA text | What it means | Notes |
|---|---|---|
| SRS | Speed Reference System — targets V2+10 kt on takeoff. Keeps the aircraft at the best climb-out speed even if an engine fails. | Active from liftoff to acceleration altitude |
| CLB | Managed climb — FMS-computed optimal climb profile. A/THR stays at THR CLB; AP adjusts pitch. | After SRS clears, aircraft climbs per FMS speed schedule |
| OP CLB | Open climb — you pulled the ALT knob. AP pitches up at whatever speed is selected/managed until the FCU altitude. | Selected mode — no FMS involvement |
| ALT | Level off — aircraft is holding the FCU altitude. Slight pitch variations to maintain exactly. | At any cruising altitude or intermediate level |
| ALT* | Altitude capture — about to level off. Flashes briefly as the aircraft pitches toward level. Transitions to ALT. | Short-lived transient — normal |
| ALT CRZ | Cruise altitude hold — same as ALT but specifically at the CDU cruise flight level. Applies minor speed corrections to maintain. | At the programmed cruise FL |
| DES | Managed descent — FMS follows the computed VNAV path. AP commands idle thrust or small corrections to stay on the path gradient. | Managed descent after T/D when path is valid |
| OP DES | Open descent — you pulled the ALT knob below current altitude. AP flies idle thrust and descends at managed speed. | Selected descent — faster, ignores FMS constraints |
| V/S | Vertical speed hold — AP maintains a pilot-selected rate in ft/min. | When you push the V/S knob after setting a rate |
| FPA | Flight path angle hold — AP maintains a selected geometric angle in degrees. Replaces V/S in TRK-FPA mode. | FCU in TRK/FPA mode |
| G/S | Glideslope tracking — AP is following the ILS glidepath. One of the most critical modes to confirm before final. | After G/S capture on ILS approach |
| G/S* | Glideslope intercept — about to capture the beam. Flashes then transitions to G/S. | Short-lived as the beam is acquired |
| FLARE | Autoland flare mode — pitch raised to arrest descent rate over the runway. | Last 50 ft, autoland only |
| ROLLOUT | Post-touchdown autoland — AP keeps the aircraft straight on the runway centre line. | After touchdown, autoland |
| SRS GA | Go-around speed reference system — targets a safe go-around climb speed. | After TOGA pushed on go-around |
Column 3 — Lateral modes
| FMA text | What it means | Notes |
|---|---|---|
| NAV | Managed lateral — AP follows the FMS flight plan. The most common cruise mode. Aircraft banks to track each waypoint. | Normal en-route and STAR tracking |
| HDG | Heading hold — AP flies the heading dialled on the FCU. You are responsible for sequencing waypoints. | Selected mode. FCU window shows a heading value. |
| TRACK | Same as HDG but holds a true track over the ground rather than magnetic heading. Used in TRK-FPA FCU mode. | TRK/FPA mode selected on FCU |
| LOC | Localizer tracking — AP is following the ILS lateral beam, keeping the aircraft on the runway centreline extended. | After LOC capture. Confirm before disconnecting AP. |
| LOC* | Localizer intercept — acquiring the beam. Flashes then transitions to LOC. | Short transient as centreline is captured |
| RWY | Runway tracking on takeoff — AP aligns with the runway heading based on the programmed departure runway. | Early climb, before NAV or HDG mode takes over |
| RWY TRK | Runway track after liftoff — same idea as RWY but with slight wind correction to track the runway centreline over the ground. | Low altitude climbout |
| GA TRK | Go-around track — AP holds the heading that existed at the moment TOGA was pushed. Prevents oscillation during the initial climb-out. | Immediately after go-around initiation |
Column 4 — Armed modes
Armed modes appear in cyan. They are not active yet — they are waiting for a condition to be met, at which point they automatically transition to active (green). This column can show both a vertical armed mode and a lateral armed mode simultaneously.
Understanding armed modes is key to understanding why the aircraft sometimes does something you didn't explicitly command — you armed it earlier and it just triggered.
Column 5 — AP/FD status
The rightmost column shows which guidance systems are physically engaged. Unlike the other columns it doesn't describe what the autopilot is doing — it shows what is on.
Phase-by-phase FMA states
Here is what you should expect to see on the FMA at each phase of a typical flight. If your FMA shows something different, something is either wrong or you have selected a mode you did not intend to.
Common mistakes & misreadings
1 — Not checking Col 4 after pressing APPR
Pressing APPR on the FCU arms the ILS approach. You should immediately see LOC and G/S appear in cyan in column 4. If they don't, the approach is either not programmed in the CDU or the aircraft is too close to the beam to arm. This needs to be caught before you are in the intercept — not after.
2 — Confusing THR CLB (thrust law) with SPEED (speed law)
In THR CLB the thrust is fixed — the autopilot adjusts pitch to fly a speed. In SPEED the thrust is variable — the thrust adjusts to maintain a speed while pitch is managed separately. If you see the nose pitching significantly in climb, that is normal THR CLB behaviour, not a malfunction. The aircraft is adjusting pitch to hold speed against fixed thrust.
3 — Ignoring mode transitions at level-off
As the aircraft approaches the FCU altitude, you will briefly see ALT* flash green — this means the capture has begun. If ALT* appears but never transitions to ALT, the aircraft has missed the level-off, which usually means you dialled in a new altitude before the previous one was captured. The old target was erased before the aircraft reached it.
4 — Assuming AP is on because the aircraft is flying itself
The Flight Director can fly the bars on the attitude indicator even when the autopilot is off. The FD bars guide your manual flying but do not fly the aircraft. Always confirm AP1 appears in column 5 before assuming the autopilot is in control.
5 — Not noticing when A/THR drops out
If A/THR disappears from column 5 and you do not notice, the engines freeze at whatever position the physical levers are. In cruise this typically means the thrust stays where it was — briefly fine. In descent at idle it means thrust stays at idle after level-off. Speed control is gone. The aircraft will pitch down to maintain speed unless you intervene. The FMA disappearance is the only warning.
6 — Expecting G/S to capture before LOC
The sequence is always LOC first, then G/S. The aircraft intercepts the localizer centreline, then once established on LOC it begins tracking the glideslope from below. If you see G/S armed but LOC has not yet captured, G/S will not activate yet — this is correct. Attempting to hand-fly the glidepath before LOC is captured is a common reason for unstabilised approaches.
FMS / CDU deep dive
The Flight Management System is the brain of the aircraft's automated flight. Everything the autopilot, auto-thrust, and ECAM use for predictions — speeds, altitudes, times, fuel — comes from the FMS. The CDU is the interface to that brain. Understanding what happens behind the scratchpad changes how you read the aircraft's behaviour.
What the FMS actually does
The FMS is not just a moving-map route planner. It is simultaneously doing four things at all times:
CDU anatomy
The CDU face has three distinct zones. Understanding the zones tells you how to interact with it without hunting for keys.
Colour code on the screen
[ ] means entry needed.The scratchpad workflow
Every data entry on the CDU follows the same pattern, no exceptions. Understanding this prevents 90% of CDU confusion:
- Type your value using the keypad — it appears in the scratchpad at the bottom of the screen. The rest of the screen is unchanged.
- Press the LSK or RSK adjacent to the field you want to fill. The value moves from the scratchpad into that field.
- The FMS validates it — if the entry is valid, the field turns green and the scratchpad clears. If invalid, the scratchpad shows an error message like
NOT ALLOWEDorFORMAT ERROR.
INIT page — the cascade anchor
The INIT page establishes the fundamental parameters that every other calculation in the FMS depends on. Enter it wrong and every downstream number — predicted fuel, ETAs, managed speeds — is wrong.
| Field | What it does | What to enter |
|---|---|---|
| FROM/TO | Sets the departure and destination airports. The FMS uses these to anchor the route, automatically pre-select ILS frequencies near the destination, and set transition altitudes. | EGLL/KJFK — ICAO codes separated by a slash. Mandatory first entry. |
| ALTN | The alternate airport for fuel planning. The FMS reserves enough fuel to fly from destination to alternate in the EFOB calculation. | Alternate ICAO. If omitted, no alternate fuel is reserved — dangerous for real-world planning. |
| COST INDEX | The single most important performance parameter. Balances time cost vs fuel cost. See the Cost Index section below for full detail. | 0–999. Typical: 20–60 for long-haul. Higher = faster, more fuel. |
| CRZ FL | Initial cruise flight level. The FMS builds the vertical profile from this — T/C placement, climb speed schedule, and DES profile are all referenced to this altitude. | 370 for FL370. Can be changed in flight but triggers a profile recalculation. |
| CRZ TEMP | Temperature deviation from ISA at cruise altitude (ISA+N). Affects thrust required and managed cruise Mach. Leave blank to use standard ISA. | FMS usually fills this from atmospheric data. Only enter if you have specific SIGMET data. |
| TROPO | Tropopause altitude. Affects the IAS/Mach crossover computation. Almost never changed. | Default 36,090 ft. Only change with flight planning system output showing a non-standard tropopause. |
| OPT FL / MAX FL | FMS-computed optimal and maximum cruise altitude for your weight. Magenta — these are recommendations, not fields you enter. OPT FL is the most fuel-efficient. MAX FL is the ceiling. | Read-only. If your cleared FL is above MAX FL, expect reduced performance. |
FUEL & LOAD — the weight foundation
Every performance prediction in the FMS is weight-dependent. The FUEL & LOAD page is where you define the weight. Get this wrong and V speeds, managed climb speeds, VAPP, EFOB, and even the optimal FL will all be wrong.
| Field | What it means | Notes |
|---|---|---|
| ZFW | Zero Fuel Weight — the total weight of the aircraft plus everything in it (passengers, cargo, crew, catering) before any fuel is added. In tonnes. | This is the single most important weight entry. A full A380 at max pax is typically 370–390 t ZFW. If the EFB has loaded passengers and cargo, this field pre-fills. |
| ZFWCG | Zero Fuel Weight Centre of Gravity — the CG position at ZFW expressed as % MAC (Mean Aerodynamic Chord). Affects trim requirements and VAPP correction. | Normal range: 26–40% MAC. Values outside this range need to be flagged. The EFB Mass & Balance page calculates this. |
| BLOCK | Total fuel loaded in kg. This is the fuel in all tanks at the gate before any taxi burn. | Must match what you actually loaded in the EFB or the fuel state page. The FMS uses this to compute EFOB at every waypoint. |
| TAXI | Estimated fuel burned during taxi to the runway. Subtracted from BLOCK to give the Trip Fuel calculation. | Typically 500–1,000 kg for a long haul. Affects the EXTRA FUEL display but not the EFOB chain directly. |
| TOW | Takeoff Weight — FMS-computed from ZFW + BLOCK − TAXI. Read-only. | Cross-check against your SimBrief OFP TOW. A meaningful discrepancy means something was entered wrong. |
| GW / CG | Live Gross Weight and CG, updated every few seconds from fuel burn. Read-only during flight. | Watch this during long cruise — as fuel burns and CG moves, the FMS continuously refines predictions. |
F-PLN page — how the route is structured
The F-PLN page is not just a list of waypoints. Each entry is a leg with a specific type, and the type determines how the autopilot flies it. The page also hosts constraints, pseudo-waypoints, and the discontinuity — all of which behave differently from normal waypoints.
The TMPY F-PLN system
Any modification to the flight plan — inserting a waypoint, changing a SID, adding a direct-to — first creates a temporary copy of the plan. You are editing the TMPY plan, not the active one. This lets you preview changes before committing. The yellow TMPY F-PLN prompt at the bottom right of the CDU appears whenever a temporary modification is pending:
- INSERT (RSK6 on most pages) — the TMPY plan replaces the active plan. Autopilot immediately follows the new route.
- ERASE (LSK6) — the TMPY plan is discarded. Active plan unchanged.
Discontinuities
A discontinuity appears in the F-PLN when the FMS cannot connect two consecutive legs automatically — typically after inserting a SID that ends at one waypoint and a route that starts at a different one, or after a DIRECT TO creates a route gap. It is shown as a yellow -DISCONTINUITY- line.
When the autopilot reaches a discontinuity in NAV mode it does not stop — it flies direct to the waypoint immediately after the discontinuity. Depending on the geometry this could be directly ahead, or it could turn the aircraft 180 degrees. Always check the ND map after any plan modification to see what the magenta line does at the discontinuity.
To remove a discontinuity: on the F-PLN page, press the LSK next to the discontinuity line. This connects the two surrounding waypoints with a direct leg.
Altitude and speed constraints
Constraints come from navdata and define what altitude or speed the FMS must achieve at a specific waypoint. They appear in magenta on the F-PLN page and as magenta circles on the ND. The FMS respects these in managed descent — it builds the DES path to satisfy every constraint. In OP DES it ignores them.
PERF pages — phase by phase
The PERF key cycles through performance sub-pages matching the current or next flight phase. Each sub-page contains the performance data relevant to that phase. They do not need to all be filled in advance — the FMS activates each one when its phase begins.
| Page | Key fields | What the FMS does with them |
|---|---|---|
| PERF TO | V1, VR, V2, FLEX temp, TOGA/FLEX selection, flap config | V1/VR/V2 appear as speed bugs on the PFD tape. FLEX temp sets the reduced thrust limit. Without V speeds, the FMS cannot arm SRS mode. |
| PERF CLB | Managed speed target, thrust limit (CLB/MCT/DCL1-3) | Sets the climb thrust rating that appears as THR CLB on the FMA. Derate selections reduce climb thrust for noise abatement or engine life. |
| PERF CRZ | Predicted TOC, ETA, EFOB at top of climb; step climb planning | Monitoring page. No entries required in normal operations. Shows live predictions updating against actual fuel flow and ground speed. |
| PERF DES | Predicted TOD distance/time, EFOB at destination | Shows when T/D will be reached. Helpful 20–30 min before descent to confirm the profile is realistic. |
| PERF APPR | QNH, landing flap config, VAPP, DH/MDA, auto-brake mode | VAPP is computed as VLANDING + wind correction (1/3 headwind, capped at +15kt, with a minimum floor of VLS). QNH entry updates the altimeter reference for the approach. |
FMS operating phases
The FMS transitions through a defined sequence of operating phases. Each phase changes which managed speed is active, which PERF page is current, and which constraints the FMS respects. Understanding the phase prevents surprises when managed speed changes unexpectedly.
Pseudo-waypoints — what they are and why they move
Pseudo-waypoints appear on the F-PLN page in parentheses — (T/C), (T/D), (DECEL), (S/C). They are not in the navigation database. The FMS computes them continuously from your current weight, wind, speed, and altitude. Because the inputs change constantly, the pseudo-waypoints move.
| Pseudo-wpt | What it marks | Why it moves |
|---|---|---|
| (T/C) | Top of Climb — where the FMS predicts you will reach cruise altitude at the current climb rate and CI. Marked with a white arrow on the ND. | Moves earlier if you are climbing faster than predicted, later if slower. Headwinds push it later. |
| (T/D) | Top of Descent — where the FMS predicts descent should begin to arrive at the destination approach altitude via the computed DES profile. Shown as a white downward arrow on the ND. | Moves with changes to CRZ FL, destination, winds aloft, and weight (fuel burn). Do not begin descent early just because T/D feels far away — the FMS profile accounts for tailwinds. |
| (DECEL) | Deceleration point — where the FMS computes you should begin slowing from approach speed to VAPP via the flap schedule. Placed before the FAF (Final Approach Fix) or IAF. | Moves with changes to VAPP, wind, and landing flap config. |
| (S/C) | Speed Change — a point in climb or descent where a speed restriction from navdata takes effect. For example, the mandatory 250 kt below FL100 is marked here. | Fixed to the FL100 crossing point — moves if your vertical profile changes. |
Cost Index — what it actually does
The Cost Index (CI) is the FMS's instruction for how to balance time against fuel. It is not a fuel-saving switch — it is an economic input that shifts the entire speed schedule across all phases simultaneously.
Mathematically: CI = time cost ($/hour) ÷ fuel cost ($/kg). A CI of 30 means your airline values one hour of flight time the same as 30 kg of fuel. A higher CI means time is relatively more expensive, so fly faster. A lower CI means fuel dominates, so slow down.
Common CDU mistakes
Entering ZFW but forgetting BLOCK — or entering them in wrong units
ZFW and BLOCK must both be in kilograms (or tonnes depending on units setting). If you enter your block fuel in pounds thinking the CDU expects pounds, you will load roughly half the actual fuel on paper — predictions will show fuel exhaustion mid-ocean. Always confirm the units displayed on the FUEL&LOAD page match what you intend.
Not inserting the TMPY after plan changes
After changing the STAR, adding a direct-to, or modifying the arrival, the yellow TMPY F-PLN chip appears. Simmers frequently navigate away to another CDU page without pressing INSERT, then wonder why the ND still shows the old route. The modification is pending, not applied, until you explicitly confirm it.
Ignoring discontinuities on the ND
A discontinuity between two waypoints that are far apart geographically can cause the AP to turn 90 or 180 degrees when the upstream waypoint is passed. Always check the ND after any plan change — look at what the magenta line actually does. If it goes somewhere unexpected, find and close the discontinuity first.
Activating the approach phase too early via PERF APPR
The approach phase changes managed speed to VAPP, which at full flap is typically 137–145 kt. If you manually activate it from the PERF APPR page while still at FL200 in clean configuration, managed speed drops immediately to VAPP. The aircraft decelerates at idle to that speed 200 miles out. Let the approach phase auto-activate, or only manually activate it when established inbound below 10,000 ft.
Not programming the arrival early enough
The STAR, approach, and runway should be entered at least 20–30 minutes before T/D. The FMS needs time to compute the descent profile including all constraints. If you enter the arrival after T/D, the profile recalculates mid-descent and T/D and DECEL markers jump — potentially leaving you high and fast.
Expecting the DIR TO page to work like a GPS "direct"
DIRECT mode on the CDU creates a direct leg to the selected waypoint — but the leg starts from the current aircraft position, not the last passed waypoint. This creates a new leg that may cut across the original route. The ND will show this immediately. If you wanted to stay on the planned route to a waypoint further down the plan, use the F-PLN page and simply delete intermediate waypoints instead.
Auto-thrust in depth
Auto-thrust (A/THR) on the A380 behaves unlike the throttle on most aircraft, and the single fact that trips up every newcomer is this: the physical thrust levers do not move when A/THR is working. You set them in a detent and leave them. The lever position becomes a limit and an arming switch, not a direct command. Understanding that one idea explains almost every A/THR surprise.
Speed law vs thrust law
A/THR is always operating in one of two laws. The FMA column 1 tells you which (see the FMA page), and they feel completely different:
SPEED / MACH on the FMA). The autopilot controls pitch for something else (a path, an altitude). This is cruise and approach. Thrust moves; speed is rock-steady.THR CLB), idle (THR IDLE), TOGA. The autopilot then controls speed with pitch. This is climb and open descent. Thrust is fixed; speed is held by the elevator, so it wanders a little.The four detents
The thrust levers have physical notches. With A/THR active, the lever you rest in sets the maximum thrust A/THR is allowed to command, and it arms A/THR engagement. From idle forward:
| Detent | What it commands | When you use it |
|---|---|---|
| TOGA | Full thrust. On the ground arms takeoff; in flight triggers go-around. The absolute maximum. | Takeoff (full power), go-around, windshear escape. |
| FLEX / MCT | Same physical gate. On takeoff it's FLEX (reduced thrust to your assumed temperature). In flight it's MCT — maximum continuous, the cap for engine-out. | Flex takeoff; single-engine operations. |
| CL | Climb thrust limit — and the home detent. With A/THR active and levers in CL, A/THR is free to modulate anywhere from idle up to climb thrust. | Set just after takeoff; stays here all flight. |
| IDLE | Levers fully back. With A/THR active this is still the floor; A/THR commands above it. Pulled back manually it's how you disconnect into idle. | Flare/landing, manual idle. |
Active vs armed — and how the levers control it
A/THR has two states that the FMA distinguishes. Active (green A/THR in FMA column 5) means it is moving thrust right now. Armed (the levers are out of the active range) means it is ready to take over but the lever position is currently commanding thrust directly.
- Below or in the CL detent, A/THR active → A/THR commands thrust up to the CL limit. The levers don't move.
- Push a lever above CL → that lever commands thrust directly (manual), A/THR goes to armed. This is how you'd add thrust manually if needed.
- Idle thrust levers fully back with A/THR off → fully manual thrust at idle.
Alpha floor & TOGA LK
A/THR includes a stall protection that overrides everything else. If angle of attack exceeds a threshold, A.FLOOR triggers and commands TOGA thrust regardless of lever position or mode — shown amber on the FMA. It is one of the strongest protections in the aircraft.
Managed vs selected speed targets
In speed law, A/THR holds a target — but where the target comes from depends on the FCU speed knob:
| Mode | Target source | FCU window |
|---|---|---|
| Managed | The FMS picks the speed for the phase — climb schedule, ECON Mach, the approach VAPP. Knob pushed in. | Dashes --- with a magenta dot. |
| Selected | You dialled a specific speed. A/THR holds exactly that. Knob pulled out. | The number you set, in cyan. |
Common auto-thrust mistakes
Treating the levers like a normal throttle and "flying" them
With A/THR active the levers stay in CL. Constantly nudging them pushes A/THR in and out of armed, fights the automation, and risks a full disconnect. Set CL after takeoff and don't touch them again until the flare.
Not noticing A/THR dropped out after bumping a hardware throttle
A physical throttle even slightly out of the CL detent band disconnects auto-thrust. If you have hardware, calibrate the detents on the EFB (see Chapter 5 — Calibrating hardware throttles) — and any time the A/THR FMA label disappears without you pressing the button, suspect the levers first. Thrust then freezes wherever the levers are.
Pulling thrust to idle to "help" the descent with A/THR on
In managed descent A/THR is usually at idle already in thrust law; if it's in speed law it's holding speed. Hauling the levers back manually disconnects A/THR. If you want more drag, use speedbrake — that's what it's for. Leave the thrust automation alone.
Expecting to cancel TOGA LK by pulling the levers back
TOGA LK survives lever movement by design — it's protecting you. The only way out is to disconnect A/THR with the instinctive disconnect button and re-engage. Pulling the levers back while locked does nothing to the thrust.
Approach modes
The A380 can fly several kinds of approach, and the automation behaves differently for each. The job on final is to know which one you've armed, confirm it captured in the right order, and understand exactly what the aircraft will and won't do for you down to the runway.
The three approach families
LOC and G/S — both shown green. Supports full autoland to CAT3. This is the gold-standard approach.F-LOC and F-G/S — shown magenta, the colour that says "computed, not a real radio beam".APP NAV + FINAL (or FINAL APP). Relies on FMS position accuracy rather than a ground transmitter.The APPR button & capture sequence
Pressing APPR on the FCU arms the approach. For an ILS that arms LOC and G/S together — they then capture in a strict order. Getting the order right is the difference between a stable approach and a scramble.
- Arm — press APPR. LOC and G/S appear cyan in FMA column 4. (If only one appears, the approach isn't fully set up.)
- LOC capture — intercepting the centreline,
LOC*flashes then goes steady green. The aircraft turns onto the runway heading. - G/S capture — established on LOC and approaching the beam from below,
G/S*flashes then green. The aircraft starts down the glidepath.
Autoland & CAT levels
An ILS approach can continue to a fully automatic landing. Autoland needs both autopilots engaged (press AP1 and AP2) so one monitors the other. The FMA then arms the landing sequence:
RETARD — thrust to idle.Approach phase & managed deceleration
Separately from the AP modes, the FMS enters its APPROACH phase (see the FMS phases). This is what drives managed speed down through the flap schedule to VAPP. It auto-activates within ~7,200 ft of destination elevation while tracking NAV/LOC, or manually via PERF → ACTIVATE APPR PHASE.
- At the
(DECEL)pseudo-waypoint, managed speed begins stepping down as you extend flaps. - Each flap setting unlocks a lower managed target: clean → S → F → VAPP.
- A/THR (in speed law) holds each target as you configure.
Go-around
A go-around is initiated by pushing the thrust levers to TOGA — the one time in the flight you move them out of CL deliberately. The aircraft transitions instantly:
Then it's the standard sequence: positive climb, flaps to CONF 3, gear up, follow the missed-approach. The full FMA picture for this is the sixth phase card on the FMA page.
Common approach mistakes
Arming APPR while above the glideslope
The glideslope captures from below only. If you press APPR already above the beam, LOC will capture but G/S stays armed and never triggers — the aircraft holds altitude and flies through the approach. Get down to the platform altitude and intercept level, beneath the beam.
Forgetting the second AP for autoland
Autoland requires AP1 and AP2 both engaged. With a single AP you'll fly the ILS down beautifully but the FMA won't arm LAND/FLARE and the aircraft won't complete the landing automatically. Press both before the LAND mode is needed.
Briefing an ILS but flying a magenta FLS
If the ILS frequency didn't auto-tune (wrong approach selected, or a navdata quirk), the FMS may give you an FLS approach instead — magenta F-LOC/F-G/S. It looks similar but it's a computed path, not a precision radio beam, and it can't autoland. Verify the FMA is green before committing.
Pressing APPR too early and arming far from the beam
Arm APPR when you're being vectored toward the intercept, not 60 miles out. Arming too early can capture a false course or sequence oddly. The standard is to arm once cleared for the approach and inside the intercept geometry.
ECAM system pages
ECAM — the Electronic Centralised Aircraft Monitor — is the system that watches every part of the aircraft for you and tells you, in plain text, what to do when something goes wrong. It lives on the two centre screens. Most of the time it manages itself; learning to read it (and when to override it) turns a wall of symbols into a clear picture of the aircraft's health.
The two screens: EWD and SD
ECAM information is split across the upper and lower centre displays:
Auto-display logic
The SD chooses a page automatically based on what the aircraft is doing. You rarely need to select one by hand — but knowing the logic stops it feeling random:
| The SD shows... | ...when |
|---|---|
| DOOR | On the ground at the gate, doors being operated. |
| APU | During APU start and shutdown. |
| WHEEL | Takeoff and landing roll — gear, brakes, tyre status. |
| CRUISE | Airborne, clean, in the cruise — a fuel + air summary. |
| ENG | Engine start, or any engine parameter exceedance. |
| The relevant failed system | Whenever a warning or caution fires — ECAM jumps straight to the affected system so you can action the procedure. |
ALL to cycle through every page one at a time if you want the full tour.The system pages
Every ECP button calls up one schematic. What each one is for:
Warnings, cautions & the alert workflow
When something goes wrong, ECAM classifies it by severity and presents it on the EWD with an audible and visual cue:
SEAT BELTS, LDG GEAR) and the T.O / LDG configuration memos. Green = set correctly, amber = not yet.ECAM lists the failure title, then a procedure: the actions to take, line by line. As you complete each action the line clears. The workflow buttons sit on the ECP:
Common ECAM mistakes
Clearing a caution before actioning the procedure
Pressing CLR silences and removes the alert, but the underlying condition is still there. Work the procedure top to bottom first, then CLR. If you cleared too early, RCL brings it back.
Fighting the auto-display instead of using it
The SD jumping to the affected system on a failure is a feature — it's putting the right schematic in front of you. Let it. Use ECP buttons to look at other systems, not to stop it showing you the failed one.
Ignoring an amber memo as "just a reminder"
An amber T.O memo line means the aircraft is not configured for takeoff — spoilers not armed, flaps not set, etc. It's a reminder, but an important one. Green across the memo is your config check before you roll.
Not checking STATUS after a failure
After actioning a caution and clearing it, the STATUS page summarises what's now inoperative and any limitations (speed, altitude, approach category). Skipping it means flying the rest of the flight unaware of a restriction the failure imposed.