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2 HFDR, 3 VDR, 1 SATCOM, Interphone, CIDS etc and WACS

1. What are the components of the Comms system

On lower part of vertical stab. Transceivers in Main Av. Couplers in aft Cargo MAYBE!!!

2. Where are the HF antennas

VHF1 Upper fwd, VHF2 Below fwd VHF3 upper mid. Transceivers in Main Av MAYBE!!!!

3. Where are the VHF antennas

AMU 1 and 2 for voice and ACR sys for data. There is a crosstalk bus between the HF TXs and VHF TXs

4. How are they all connected and controlled

Can’t transmit at same time. Can’t be used on GND without GND HF DTATLINK P/B sw.

5. What inhibits are there on HF

It is auto tuned from its own DB according to location reported by ADIRU

6. What happens to the HF transceiver tuning in data mode

It is a LEVEL 2 ALERT for HF > 60s . LEVEL1 ALERT for VHF > 35s and LEVEL 2 >60s. Sends “KEY EVENT” to FDRS

7. When does the HF EMITTING and the VHF EMITTING happen and what level alert is it

It is the only one connected to Data via the Avionics Communications Router app. The ACR tunes it for data

8. What is special about VDR 3

AMU1 = DC1, AMU = DC2 but both are on DC ESS

9. What are the AMU power supplies


10. What is the SATCOM button on RMP

4. Muted when a PTT is pressed

11. How many speakers are there and when are they muted


12. How many Hand mics

RAD PTT has priority over INT PTT

13. Which PTT has priority

3 green lines for TRANSMIT selected. Flashing amber CALL/ATT/MECH

14. What are the RMP keyboard legends

In the AMUs

15. Where is the Flight Interphone hosted

Only P1 P2 and P3

16. Which oxy masks have mics

FWS generates a Buzzer sound, MECH flashes for 60s

17. What happens in FD if Mech call from GND

100db and blue

18. How loud is the ground horn and what colour is the light

Radio and Audio Integrating Management System. 2 AMUs, 3 RMP

19. What is RAIMS and what does it consist of

FWS and OMS via AMU1 (so AMU1 u/s = loss of fault data)

20. What is RAIMS connected to


21. How are the AMUs connected

By a dialog bus

22. How are the RMPs connected

Red light. Turn it off and P3 RMP is now the replacement

23. What happens if P1 or P2 RMP fail

AMU1=P1 and P3, AMU2 = P2 and P4 (but hears only what P3 hears)

24. How are the AMUs arranged

No LGERS I/P stops it.

25. Does the GND call bell work in the air

With reset switch moved to down

26. How is the light on the NLG cancelled

Green bars on switch but also a speaker symbol and (if tranmission selected) a green highlight on the screen

27. What does the RMP show for selected

Avionics Communication Router. It is an app in CPIOM-D3. Linked to HF, VHF, SATCOM to deal with ACARS comms for ATC and AOC and CPDLC etc.The datalink apps (ATC etc) in CPIOM-D1, FMCs (for AOC). Also the NSS for the Airground Message Server(AM) hosted in the ANSUs-OPS fro AOC and AAC messages.

28. What is the ACR, where is it and what does it do

The RMP ( can see ACR sts and initialisation parameters)

29. What is ACR HMI

For DATALINK FAULT messages etc

30. Why do ACR and FWS interface

DataLINK ROUTER C/B on reset 1231VM

31. How can ACR be reset

AMU1 only for 3 channels and direct from area mic for 4th channel. Also CPDLC from ATC app (CPIOM-D1) through ARINC429

32. How does CVR record

For 5 mins after a/c powered up, On GND with 1 MASTER lever on . In flight or 5 mins after last shutdown. Or RECORDER GND SW

33. When is CVR recording

600Hz tone

34. How is a successful CVR test indicated

Must be in recording config, on and, park brake on. Button held for 2s. 400Hz tone at end.

35. How is CVR erased

ARINC 429 link wit CDAM

36. How is UTC time synchronised


3 CIDS. 1 is active the other 2 are in Stby

1. How many CIDS and how are they arranged

2 min. 1 MD 1 UD but up to 10 can be allowed daisy chained. Mini FAPs are an option too

2. How many MP FAPS and where and how connected

They are Decoder/Encoder Units. A is Passenger related (Lighting, PSUs, Individual lts, PAX signs, Call bells and speakers). B is Cabin Crew related (ACPs, AIPs, AAPs, handsets)

3. What are the functions of DEU A and DEU B

A = 85 - 192 (12 per Top Line), B = 21 - 72 (12 per Middle Line)

4. How many DEU As and Bs are there

Area Call Panel. In the ceilings and has lights for PAX call, interphone, LAV SMK, EVAC etc

5. What is an ACP

Attendant Indication Panel. Shows dial and call info from PA, interphone and passengers. Shows the location of LAV SMK

6. What is an AIP

Controls cabin support systems in a specific zone. Optional and near attendant stations

7. What is an AAP

DC1, DC GND SRVC. DC ESS (if GND SRV not avail)

8. What are the CIDS, DEU A, DEU B and MP FAPS power supplies

Power consumption reduced to minimum. PA, I/phone, smoke, alert, lts to 50%. The top lines (which feed DEU As) are only powered if an audio signal is required.

9. What happens if DC ESS only (in particular DEU As)

5s CIDS is reset. 0.2s smoke detectors are reinitislased

10. What happens if power is interrupted to CIDS for > 5s or 0.2s

PA, Cab I/phone, Service I/Phone

11. What comms does CIDS do

Direct PA, Priority PA (excludes Crew rests) , Deck PA (excludes crew rests)

12. What is the PA functions priority

FD acoustic Dev, FD H/S, CC H/S, PRAM, IFE

13. What is the PA source priority

Service areas, FD and service area, Services areas and CC areas.

14. What is the service I/phone used for

LGERS sends NLG compressed or EXT PWR on. Needs to be selected on RMP or CC handset

15. When is Service I/phone available and how

Each AV compartment, Engines, hydraulic compartment, Cargo bays lts panel, DFDR, APU, A/C bays, yawn etc

16. Where are all the F*****G jacks

SDF, Emergency lights, Ice protection for water waste, Cart lift, ELMs (via ACDN for load shed and IFE power etc), Gallery cooling (Via ADCN for SCS) , Vacuum control, Doors and slides (DSMS for indication)

17. What functions do CIDS fulfil and how

Cargo, avionics directly and Lavs and cabin via DEU-Bs

18. What are the SDF areas


19. What DEU for emergency lights, Ice protection and heating, Trolley lift

Through discrete and CAN bus

20. How do CIDS talk to each other

10mb/s ethernet. A = Top Lines (in the ceiling 6 on each MD and UD sides and middle. 4 LD sides only), B= Middle Lines (2 on each deck along the side above the ceiling)

21. Describe how the CIDS is linked to the DEUs

Via the OBRM and CAM flash cards on MD FAP on power up

22. How is FLS done

All passenger functions on that bus cease but Loud speaker volume increases

23. What happens if a Top Line bus fails

A coding switch on the connection box.

24. Where does the DEU get its address from

On the connection box. Green if DC SERV is on, Amber if DC ESS in on

25. How can you see power supplies to a DEU

PISA in each PSU or stand alone. Up to 8 (PSUs or Lights or window shades (EWSC))

26. What is the interface between the DEU A and PSU and how many PSUs can a DEU A control

MILA (mini lights Adapter) STELLA (Stairs), SALSA (spot lts), LAILA (Lav lts)

27. What are some of the ridiculous names for controls

Hosted in CAM

28. Where is the program that for the lighting

ACPs, AIPs, AAPs, Cabin h/sets, IPCU, EPSU, Trolley lift Controller, Lav smoke detectors, Temp sensors Alert buttons Lav occupied signs

29. What do the DEU Bs talk to



1. Where is the ATC datalink App hosted

A/C systems, printer 1, ATC using Avionics Comms Router in CPIOM-D3 as well as HMI such as ATC messages, loud speakers ATC MSG P/Bs

2. What does the ATC app swap data with

The mailbox section of the SD and the MFD ATC COM page

3. Where can CPDLC responses be seen



1. What is the backup in case of ADIRU failure

3 independent and redundant Channels. Each has ADIRU, 1 x MFP, 2 x ISP, 1 x OAT, 1 x SSA probe, 1 ADIRS cont panel, 1 switching panel for ADR3 or IR3, 2 x ISIS, CDS, 2 x stby probes for static and 1 for pitot

2. How many channels does age ADIRS have and what is each composed of

Integrated Stby Instrument System. No1 is PFD and No2 is ND

3. What are the ISIS


4. What is the ADIRU power supply

ADIRU1 +3 with EMER AC

5. What is the emergency power supply

28VDC. Each ADIRU transfers t it if AC exceeds limits

6. What is backup generation and when does it happen

AC and DC tested on power up by internally switching

7. When is the power supply tested

1 MFP, 1 ISPs 1, 1 SSA probe, 1 OAT probe. All apart from OAT have Digital converters (ARINC 429) and antice.

8. Describe the ADR part of ADIRU and state which have Digital converters, What BUS and which have ice protection

115VAC for antice and Dig Conv except ISPs which is 28V for DIG Con and OAT probes that are powered by ADIRUs

9. What are the ADR probes power supply

Has Windvane for AOA , Tube for TAT and pitot probe for Pt

10. What do MFPs have and what do they provide

1 LH, 2RH

11. Where are the MFPs installed

Gives local static pressure. 3 on each side, 1 each side to each ADIRU via Dig Conv

12. Describe ISPs

3 x Side Slip Angle using wind vane. Upper nose under windshield I per ADIRU using Dig Conv

13. Describe SSA

Temp on Ground. Used because TAT are heated on ground so inaccurate. 2 on NLG. 1 to ADIRU 1 and 2 to ADIRU 2+3. They are heat resisting probes energised by ADIRU and give analogue signal.

14. Describe OAT and why

Probes can be manual or auto. Auto is avail when 1 engine is running or GND SP > 30kts. Manual is by using PROBE/WINDOW HEAT P/B on GND with no engines.

15. Describe Anti-Icing Functions

2 SWs. Norm at 12oclock gives ADIRU 1 to P1 and ADIRU 2 to P2 with option to switch either to ADIRU 3. ATT HDG is upper and does IR, AIR DATA is lower and gives Air data

16. Describe the ADIRS switching Panel and where they are

Power supplies change and message on ECAM memo

17. What happens on using the ADIRS switching Panel switches

CAS, Mach, ALT, V/S

18. What are the ADF params on the PFD

Trapezoidal grey scale for Mach, needle, a number in moving amber window.

19. What do you see on the V/S of the PFD

ATT, Pitch and roll angle and HDG.

20. What are the IR params on the PFD

Only IR in the form of GND SP and HDG on ND.

21. What ADRs and IRs info is on ND

Stby Nav shows rose, HDG, GND SP, pos, Active way point and way point list. Stby Flt Disp shows ATT, AS, ALT, bugs, ILS, HDG and TRACK and Fix

22. What does ISIS show

Check TAXI P/Bs off, AIR DATA and ATT HDG to normal, Ensure FAULT and OFF not visible on ADIRS Panel. SW to NAV. Ensure SPD, ALT, V/S flags on PFDs go after 10s. HDG flag shows but ATT warning flag doesn’t after 30s. Ensure NDs have HDG flag too. Check ISIS during the start up too.

23. Describe the ADIRS Powering Procedure

Standby Navigation Systems

2 ISIS units, 2 Stby Static and 1 Stby Pitot plus a stby compass for magnetic heading

1. What makes up the SNS

Yes by discrete link to allow reconfig

2. Do the 2 ISIS units talk

ADIRU 1&3 via ARINC 429. ADIRU 3 gives IR info with ADIRU 1 as backup. They also interfaces with MMR 1 via A429 for ILS data (LOC and GS) plus GS Lat and Long. It also interface with the FCU and FCU backup function in CPIOMs-C for mag/true selections. It also talks to CDAM and FWS

3. What else are the ISIS linked with, which bus and how does it use it

Pitot probe heated with 115VAC ESS bus and Static by 115v normal AC bus. ISIS commands it automatically in flight when with 1 eng or GS > 30kts and ISIS CAS> 50 Its. Manual from ADIRS panel Probe /window heat

4. Describe the SNS Probes heating

Normal DC buses or DC ESS

5. What are the ISIS power supplies


2 MMRs, 2 VORs, 2 DMEs, 2 ADF (opt)

1. List Rad Nav aids

Tuned by onside FMC via IOM from Nav DB. They use Port A unless RMP sends data on Port B

2. How are tuned

From POSITION/NAVAIDS page on MFD. ND show M underlined and dimmed on NDs.

3. How does manual tuning work and where can manual tuning be indicated

If IOM 3&4 have failed then RMPs tune onside. Then ND show R underlined and dimmed. But ILS 1 and 2 must be tuned to same freq so RMP dialogue buses ensure this

4. What is the backup tuning

It integrates with CDS via ADCN for name and Freq, the AMUs for Morse listening, ISIS via A429.

5. Describe the MMR

VIA KCCU/MFD selection from NAV DB or from RMP in Backup Nav config.

6. How can MMR be manually tuned


On EFIS. Gives G/S and LOC deviation scales. The Deviation symbols will appear when MMR relieves signals

1. What does LS P/B do and where is it

On AFS. Arms AP/FD lat and vert approach modes

2. What does APPR P/B do and where is it

On AFS. Arms AP/FD lateral approach mode only

3. What does LOC P/B do and where is it

Tune/Test Inhibit(TTI) discrete (elaborate by PRIMS) stops it below 700ft NLG extended . It also stops MMR test

4. How and when is ILS tuning prohibited

To PRIMs and ISIS for TO APPR and Landing via A429 and to FMS CDS FWS AESS through ADCN. FCDC in CPIOMs-C gives precision approach to CDS for display. This is relayed by PRIMs

5. Where and how is ILS data sent and when is it used

2 G/S antennas. LAS (landing antenna select) and Functional Test (FT) discretes given by PRIMs (Landing gear status and RA to MMR which then sends VHF Antenna Select Control Discrete (VASC) which gives Acknowledgement (VASA)

6. Describe the Radio Frequency Relay


The modes armed/active of AP/FD(computed by FCDC on the FMA), ILS freq, ILS/DME lower left, ILS course (magenta dagger lower HDG display), G/S deviation (magenta diamond), LOC deviation (mag dia)

1. What ILS related data is on the PDF

ILS freq + CRS top R, APPR type top C, G/S (mag dia) on R vertical scale, NO HORIZ SCALE!! This is represented by magenta LOC deviation bar in centre of rose . CRS pointer dagger in magenta in C too

2. What ILS related data is on the ND Rose


FLS function shows a pseudo-LOC and distance to runway using FMS data instead of ILS. The magenta diamonds and pointers are double lines and FMA shows F-G/S and F-LOC. On the PFD and ND instead of ILS info it shows FLS info (F-APP + RAW)

1. What is FLS and how do you know you are using it


MFDs NDs and ISIS ND (only MMR1). The clock can show UTC time from GPS. MFDs can shoe POSITION/GPS on GPS page.

1. Where can GPS data be seen

Top R for GPS/GLS info on ND and GPS status at bottom under rose

2. What info for GLS can be seen

Rad Alt

User systems can use up to 5000ft, PFD uses up to 2500ft

1. What height are significant for RA

PRIMs for AFS, FWS for warning and callouts, TAWS in AESS

2. Which are the user systems for RA


Lower left of PFD and lower L or R of ND

1. Where do you see DME

Select VOR on EFIS cont panel. VOR info is Top L

2. What do you need to do to see VOR/DME on ND

OM(blue) MM(amber) and IM(white) lower R of PFD

3. Where do you see MKR

As 2 needles VOR 1 and VOR 2 on the ND rose.

4. How do you see VOR info

1 = single pointer white, 2 = 2 pointers in blue.

5. What is the difference between VOR 1 and 2 needles


2 units with 5 modules each. WXR/PWS , TAWS, TCAS, XPONDER, I/O alert priority module

1. How many and what are the modules


2. How are the modules organised

I/O alert priority module

3. What is the primary A/C interface of AESS

2 PSU, 1 per group 115V

4. How is AESS powered

On PFD and ND. It will take over ND for threats (popup)

5. How do the messages and pages of the AESS get displayed

FMS via ADCN for nav data, Vertical display params and flight plan. ATC via CPIOM D1, RMPs fro Transponder code, RAs for TAWS, ADIRU for Air Data, IR GPIRS and GPS. MMRs for deviations and approach params. PRIMs for knowing MASTER, Alt selected, AP status for TCAS. It also asks the PRIMs to display FD info for avoidance. (Safe vertical speed too). EECs for ‘is an eng on’. Connected to AMUs via analogue. And to ECP for cancellation by EMERGENCY CANCEL sw

6. What does AESS interface with

Mode C and Mode S transponders. Mode S sends range, bearing, Alt and Mode S address to the A/C

7. What does TCAS use and what does it send


8. What frequency does TCAS use

ND show intruder symbols. PFD VS not allowed.

9. What happens during a TCAS threat

ABV (-2700 -> +9000ft), BLW(-9000 -> +2700ft), AUTO depending on Flight Plan and VS

10. What are the scanning modes of TCAS

AESS cont panel or SURV/CONTROLS of MFD.

11. Where can TCAS be set

TA ONLY for traffics advisories only , TA/RA for resolution Advisories too. STBY for displaying nothing.

12. What else can be set for TCAS

TRAF button on EFIS control panel to see it on ND

13. How do you display the traffic

Reactive windshear, Low Energy, Alpha Floor, Excessive Pitch Angle, Bank Angle

14. Describe the Abnormal Flight Conditions

Reactive W/SHEAR from Law computation by PRIM (using V and L accelerations from ADIRU and AOA). Only for 30s after TO below 250tRA or approach 1300ft to 50ft RA “WINDSHEAR, WINDSHEAR, WINDSHEAR” and red on PFD.

15. Describe Reactive Windshear

Low Energy for speed too low if AOA > then defined threshold at that time, below 2500ft or 3100ft landing or 3200ft RA TO “SPEED SPEED SPEED”.Inhibited on TOGA or ALPHA FLOOR

16. Describe Low Energy

Protects against excessive AOA. Activates A/THRUST via FG to FULL. It does this on all engines but symmetrically if some are out. Works below 100ft APP or 2 engine fail on same side

17. Describe Alpha Floor

>12degs with RA < 400ft. PITCH PITCH with amber V on PFD on landing and TO

18. Describe Excessive Pitch Angle

Excessive Bank. BANK BANK depending on RA

19. Describe Bank Angle Warning

Flight Guidance

Flight Control Guidance Units (FCGU). Does AP, FD and A/THR

1. What does FG and what are the functions

3 axis and NWS. A/THR controls N1 target via FADEC

2. What does FG control

AFS cont sends “key pressed” and click counts to PRIMs via A429 and discrete for AP and A/THR P/Bs. PRIMs do the calcs and send back display info and light info to panel. The EFIS panel does its own computations and manages the displayed data and setting to ADCN via A429 and IOMs

3. How does data processing differ for AFS and EFIS cont panels

The PRIMS using A429 for critical data.

4. Where does critical data come from for AP/FD

Characteristic speeds from FE. Modes and targets from FCU (or FCU backup in CPIOM-C). Targets from FMCs(ADCN). ADIRU and ISIS(to consolidate data). SFCCs. MMRs. TCAS. RA. GW from FQMS in CPIOM-F (and WBBC as backup in CPIOM-C). LGERS for GND/FLT(consolidated by LGRDC4 and RA)

5. What is the data from

PRIMs calculate it. Gets input from FE, vertical mode on AP/FD, FCU SPD/MACH and target. TLC, N1 and eng Failure positions from EEC (analogue from levers as backup).

6. What I/Ps are there to the A/THR and what calculates it

ADIRU, MMRs and RAs sensors. Servo Controls. Side Sticks (including instinctive disconnect), FWS and PFDs.

7. What do PRIMs look at for Landing Capability Computation

By FCDC in CPIOM-C depending on all the PRIMs assessment of same.

8. How is the overall landing capability calculated

Landing Capability from FCDC and Velocity Vector from ADIRUS

9. What data is not sent to CDS by ADCN from PRIMs

FMA data (A/THR, AP/FD Vertical and Lateral modes, Landing capability, AP, FD & A/THR engagement sts). FCU selected targets and FMCs managed targets. FD guidance orders. Velocity Vector. Also A/THR N1 target on EWD

10. What FG data is displayed on PFD

30ft RA TO and Landing

11. When is the roll bar replaced by the yaw bar

It displays trajectory info. When in TRK/ FPA mode it shows on both PFDs and VV on EFIS P/B is lit. Manually selected from same VV Button

12. When is VV displayed and what is it

5s after TO, is in Flt domain with pitch >10 degs but <22 degs, roll <40 degs, CAS > VLS & < VMAX. 1 PRIM operates, 2 ADIRU aligned. FCU or backup in operation.

13. When can AP be engaged in air

All ENG off. 1 PRIM working. 2 ADIRUs, FCU or FCU backup working.

14. When can AP be engaged on GND

On A/C power up

15. When is FD automatically engaged

After TO only unless FD button is pressed. Also if TCAS needs to give RA

16. When will FD be displayed

TO phase (5s after lift off), Climb, Cruise, App, Landing, Roll out

17. What can AP be used for

Only during approach or GoAround.

18. Can you use both AP

3 green bars on AP button, Side sticks and rudder pedals locked

19. What happens on AP engagement

Using Side Stick instinctive disconnect (normal procedure). By using Side Stick or Rudder pedals (emergency). By PRIMs if a failure or protection is activated. (AUTO). By using FCU (or backup FCU) AP button (manual)

20. When is AP disengaged

FCGU A commands, B monitors.

21. In a PRIM what commands and what monitors

A429 duplicated due to amount of data

22. How do FCGUs in a PRIM communicate

4 pairs of A429. Each needs 1 so FGCUs can communicate with the other FCGUs in other PRIMs

23. How do PRIMs communicate

Normally PRIM1 is master. Each calcs its own availability of parameters and the best is master

24. How are PRIMs configured

Availability of Direct, normal and alternate 1&2 Law, Stick, pedals, AP, ADCN, PFD, AP1, AP2, A/THR P/Bs, FLS, FCU, Flight Control Law.

25. What params do PRIMs check to decide the master

Master, Slave 1, Slave 2.

26. How are the PRIMs defined after priority selection

Carries out all FG/FE functions (both AP1&2 and FD1&2). Displays both sides and signal their own controls

27. What is the function of the MASTER PRIM

Sync with MASTER and follow commands and signal their own controls

28. What do the Slave PRIMs do

They reconfigure without any AP/FD/AT disengagement. Slave 1 becomes MASTER Slave 2 becomes Slave 1

29. What happens if a PRIMs capability changes or fails

MASTER does both 1&2 but the data to do so is 1 from P1 and 2 from P2.

30. How are AP and FD computed

AP1 is always active AP2 is stby regardless of order of selection

31. If both AP1 and AP2 are selected what happens

Always in dual config regardless of AP selection (or not selected!) FD1 is on P1. FD2 is on P2 display read 1FD2 on both P1 and P2 displays on FMAs

32. How is FD displayed

1FD1 or 2FD2 on FMAs

33. What is displayed for FD fails

NAV and PERF db to optimise fuel and timings and reduce cost

34. What does FMS use

With MFds it carries out Lat and Vert plan, A/C pos, Computes Lat/Vert steering orders and thrust to be followed by FC.

35. What does the FM carry out and with help from what

MFDs, PFDs and NDs

36. Where can Lat/Vert info be seen

3 FMCs connected to A/C computers/apps mainly via ADCN

37. Describe the FMCs

Navaids (pos from VOR etc via IOMs), ADIRU (speed, inertia, time), FQMS(GW CG FOB via IOMs), clock(via IOMs), LGRDCs(A/C on GND using discrete info so quicker than ADCN)

38. Which computers supply FMCs data and what/how

30s after receiving A/C on GND. Clears Flt plan and computes drift

39. When does FMS switch to DONE phase and what does it do

ATC and AOC. Called Operational Ground Centres

40. What are the 2 functions of Data Link and what are they collectively called

Uses Printer1. Only auto if set on FMS A/L config file or via PRINTER page on MFDs

41. Where does the info received from AOC get printed and is it automatic

Displayed on the MFDs, PFDs and NDs. Most data is direct from FMCs

42. Where does the FMS data get displayed and how does it get there

Flt plans, PERF data and software P/Ns

43. What do MFDs display

Managed targets V1, VR FMA messages. Managed targets are all processed by PRIMs before getting to PFDs

44. What do PFDs display and do they come directly from FMS

On main zone Lat Flt plan, Vert info and wind direction, on the Vert display Vert Flt plan Alt constraints and Flt Plan revisionary data

45. What do NDs show

Dual (FMC A data from and display to P1, FMC B data from and display to P2, FMC C in stby. A and B exchange data for sync and comparison) , Independent ( Happens if crosstalk bus is mismatched or failed and A and B can’t sync) and Single ( Only 1 FMC active. Manages onside only unless FMS sw set to BOTH on BLAH).

46. What are the 3 FM operating modes and what are they

It will become stby and the config will remain as it was reconfigured post fail.

47. If an FMC fails and recovers what happens

Crew use ISIS as Flight Planning Back up. Can store 10 way points. Discrete Link to FCU backup Function and interfaced with FCU to receive Mag/True selection. Each ISIS has A429 to FCGUs for monitoring.

48. What if all 3 FMCs fail and how does it work

When throttles in FLX/MCT or TOGA or when ALPHA FLOOR detected

49. When is A/THR auto engaged

Using A/THR P/B

50. When is A/THR man engaged

All FADEC report eng ok range is idel(0) to CLB ( for at least 1 and the others below MCT)

51. What is the normal A/THR range

Eng range is idle to MCT. All Operative ENG must be in this range

52. What is normal with 1 eng out

It will remain at TOGA until A/THR disengaged

53. When does thrust return to normal after Alpha Floor


GND only from LGERS signal

1. When is the main cabin lighting On/Off useable

Hardkey on FAP surround or on FAP light page.

2. Where are the Main Cabin Lighting On/Off

M1L Door chief purser station. U1L Door

3. Where are the FAPs

Dimmed to 10% if engines running. They are 2 spot lights in FWD entrance and 1 IBU in stair ceiling

4. What happens to some lights when FD door unlocked and which are they

Serial Bus data fail, FAP failure, CIDS fail.

5. When is cabin lighting dimmed to 50%

Cabin decompression

6. When is cabin lighting 100%

HIDs on NLG. RWT TURN OFF & CAMERA sw only if NLG down and locked

7. What type of light are the runway turnoff and when do they operate

HIDs x 4, 2 at bottom of fwd fuse and 2 at bottom of wings. TAXI P/B activates ETACS which activates lts. NLG down and Locked rom LGERS and RWY TURN OFF & CAMERA sw is ON

8. What type of light are the Taxi Aid Camera lights, where are they and when do they operate

On GND MLG lts can be turned on from sw BLG GDO panel

9. When else can camera Lights be turned on

HID x 2. In each wing root leading edge (4 total) below taxi lt

10. What type of lights are the Landing Lights and where

HID x 3 on NLG and 1 in each wing root (5 total) above landing lights. (2x TO lights upper NLG, 1xTaxi/TO lower NLG, 1 taxi each wing root)

11. What type of light are the taxi and take off lights and where

400m ahead, 40m on both sides. TO/TAXI/OFF sw

12. What are the lighting ranges of the Taxi Take Off lights and Turn Off lights

Xenon. 1 x white each wing tip and 1 x tail cone (3) total. STROBE sw on EXT LT panel to IOMs 5 and 6, ADCN and SEPDCs 1&2 plus a discrete backup

13. What type are the strobes and where are they and how controlled

SEPDC 1 does wings, 2 does tail.

14. How are the white strobes monitored

WIth the red beacon lights. The lower beacon power supply does the syncing and wings give an extra flash.

15. How are strobes synced

LGERS and FWS say NLG on ground STROBES are off.

16. What happens in the AUTO position

If NLG not on GND STROBE LT OFF message appears

17. What happens if STROBE sw is off