COMPUTER RESET GUIDE FOR REFERENCE USE ONLY The data contained herein is intended to assist troubleshooting only and is not a substitute for Airbus and/or operator’s manuals. Fault correcting maintenance and the aircraft’s “return to service” testing shall be accomplished in full accordance with proper Airbus and/or operator’s manuals
Revision date: Nov 01/11
Subtask 24-00-00-810-069-A Computer reset procedure NOTE:This reset procedure is used when a computer does not operate correctly. NOTE:The line maintenance personnel can use it a first time to avoid a computer replacement (a reset must be done for the applicable computer as indicated in the Computer Reset Table). But, if there is more than one reset for each flight cycle for a given computer, it is necessary to do the specific troubleshooting procedure for the applicable system. If after a reset, the computer operates correctly, no more action is necessary. (1)To do computer reset: (a)Set the related normal cockpit control to OFF, or open the related circuit breaker as specified in the reset procedure. (b)Wait 3 seconds if a normal cockpit control is used, or 5 seconds if a circuit breaker is used (unless a different time is indicated). (c) Set the related normal cockpit control to ON, or close the related circuit breaker. (d)Wait 3 seconds for the end of the reset.
Subtask 24-00-00-810-075-A Air Conditioning ATA 21
SYSTEM MALFUNCTION CAB PR SYS 1(2) FAULT
COMPUTER
RESET PROCEDURE
CABIN
For CPC 1:
PRESSURE
- On panel 49VU, open the C/B 1HL.
CONTROLLER
FOR CPC 2:
1(2)
- On panel 122VU, open the C/B 2HL. After 5 seconds, close the C/B.
21
COND ZONE REGUL FAULT
ZONE
On the panel 122VU:
TEMPERATURE - Open the C/B 1HK CONTROLLER
- Open the C/B 2HK After 5 seconds, close the C/B.
21
AIR FWD (AFT) CRG VENT
CARGO
On the panel 49VU:
FAULT
VENTILATION
- Open the C/B 2NH
CONTROLLER
- Open the C/B 31HN After 5 seconds, close the C/B.
21
VENT AVNCS SYS FAULT
AEVC
On the panel 122VU:
ATA
SYSTEM MALFUNCTION
COMPUTER
RESET PROCEDURE - open the C/B 3HQ After 5 seconds, close the C/B
21
AIR PACK 1(2) REGUL FAULT PACK
For the pack controller 1:
CONTROLLER
- on the panel 122VU, open then close the C/B 2HH.
1(2)
For the pack controller 2: - on the panel 122VU, open then close the C/B 22HH.
21
COND AFT CRG HEAT FAULT AFT CARGO
On the panel 49VU:
HEAT
- Open the C/B 31HN.
CONTROLLER
- After 5 seconds, close the C/B.
Subtask 24-00-00-810-076-A Auto Flight ATA 22
SYSTEM MALFUNCTION
COMPUTER
AUTO FLT YAW DAMPER 1(2) FAC1(2) FAULT
RESET PROCEDURE Open these C/Bs with the Yellow and Green hydraulic systems pressurized: - for the FAC 1: on the panel 49VU, C/B 5CC1 - for the FAC 2: on the panel 121VU, C/B 5CC2
ATA
SYSTEM MALFUNCTION
COMPUTER
RESET PROCEDURE Then close the C/Bs after 10 seconds.
22
WINDSHEAR DET FAULT or
FAC 1+2
REAC W/S DET FAULT
Open then close the C/Bs in this the order: - on the panel 49VU, C/B 5CC1 and C/B 14CC1 - on the panel 121VU, C/B 5CC2 and C/B 14CC2.
22
AUTO FLT FCU 1(2) FAULT
FCU
For the FCU1: - on the panel 49VU, open the C/B 9CA1. For the FCU2: - on the panel 121VU, open the C/B 9CA2. Close the C/B after 5 seconds. If the fault does not continue, do a check of the target and barometer references shown, and correct them if necessary (reset successful). If the fault continues, open again the two C/Bs 9CA1 on 49VU and 9CA2 on 121VU. Close the C/Bs after 7 min, with an interval less than 5 sec between side 1 and side 2. At least 30 sec are necessary until the end of the FCU1 and FCU2 safety test. If the fault does not continue, do a check of the target and
ATA
SYSTEM MALFUNCTION
COMPUTER
RESET PROCEDURE barometer references shown, and correct them if necessary (reset successful) If the fault continues, end of procedure (reset unsuccessful).
22
One MCDU locked or blank
MCDU
Open then close the C/B of the defective MCDU after 10 seconds:
Both MCDUs locked or blank
FMGC
- For the MCDU1: on the panel 121VU or panel 49VU, C/B 11CA1. - For the MCDU2: on the panel 121VU, C/B 11CA2. - For the MCDU3: on the panel 121VU, C/B 11CA3.
22
FMGC malfunction
FMGC
On the panel 121VU or 49VU: - open the FMGC 1 C/B 10CA1 and close it after 10 seconds. If there is no reset of the FMGC 1, do a reset of the FMGC 2 on the panel 121VU: - open the C/B 10CA2 and close it after 10 seconds.
Subtask 24-00-00-810-077-A Communications ATA SYSTEM MALFUNCTION
COMPUTER
RESET PROCEDURE
ATA SYSTEM MALFUNCTION 23
COM CIDS 1+2 FAULT
COMPUTER CIDS
RESET PROCEDURE - Open the C/Bs in this order: on the panel 49VU, C/B 150RH on the panel 121VU, C/B 151RH - After 10 seconds, close the C/Bs in this order: 151RH, 150RH.
23
Uncommanded EVAC horn CIDS
Press the EVAC/HORN SHUT OFF switch.
actuation
If unsuccessful: - Open the C/Bs in this order: on the panel 49VU, C/B 150RH on the panel 121VU, C/B 151RH - After 10 seconds, close the C/Bs in this order: 151RH, 150RH.
23
Frozen RMP
RMP
You must do a reset of all the RMPs, one after the other. On the RMP control panel: - set the ON/OFF switch to OFF - after 5 seconds, set the ON/OFF switch to ON.
ATA SYSTEM MALFUNCTION 23
Frozen FAP
COMPUTER Tape reproducer
RESET PROCEDURE On the panel 121VU, open the FAP C/B 170RH. - After 10 seconds, close the C/B 170RH. If unsuccessful: on the panel 2000VU - open the tape reproducer /PRAM C/B 2RX. After 10 seconds, close the C/B.
Subtask 24-00-00-810-077-C Communications ATA SYSTEM MALFUNCTION 23
COM CIDS 1+2 FAULT
COMPUTER CIDS
RESET PROCEDURE - Open the C/Bs in this order: on the panel 49VU, C/B 150RH on the panel 121VU, C/B 151RH - After 10 seconds, close the C/Bs in this order: 151RH, 150RH.
23
Uncommanded EVAC horn actuation
CIDS
Press the EVAC/HORN SHUT OFF switch. If unsuccessful:
ATA SYSTEM MALFUNCTION
COMPUTER
RESET PROCEDURE - Open the C/Bs in this order: on the panel 49VU, C/B 150RH on the panel 121VU, C/B 151RH - After 10 seconds, close the C/Bs in this order: 151RH, 150RH.
23
Frozen RMP
RMP
You must do a reset of all the RMPs, one after the other. On the RMP control panel: - set the ON/OFF switch to OFF - after 5 seconds, set the ON/OFF switch to ON.
23
Frozen FAP
Tape reproducer
Open the C/Bs in this order: On the panel 49VU, CB 171RH On the panel 121VU, CB 170RH - After 10 seconds, close the C/Bs in this order: 170RH, 171RH If unsuccessful: on the panel 2000VU - open the tape reproducer /PRAM C/B 2RX.
ATA SYSTEM MALFUNCTION
COMPUTER
RESET PROCEDURE After 10 seconds, close the C/B.
Subtask 24-00-00-810-088-A Electrical Power ATA SYSTEM MALFUNCTION
COMPUTER
24
GAPCU
GPU cannot be connected to the aircraft
RESET PROCEDURE If at least one power source (IDG 1 or IDG 2, APU GEN or batteries) is connected to the electrical network of the aircraft: - On the ELEC control panel 35VU: . Push and release the EXT PWR pushbutton switch. If no power source is connected to the electrical network of the aircraft: - On the ELEC control panel 35VU: . Push the BAT 1 and BAT 2 pushbutton switches (the OFF legend goes off).
Subtask 24-00-00-810-078-A Fire Protection ATA SYSTEM MALFUNCTION 26
SMOKE LAV + CRG DET
COMPUTER SDCU
RESET PROCEDURE On the panel 49VU:
ATA SYSTEM MALFUNCTION
COMPUTER
FAULT
RESET PROCEDURE - open the C/B 11WQ On the panel 122VU: - open the C/B 12WQ After 10 seconds, close the two C/B's.
26
ENG1(2) LOOP k FAULT
ENGINE FDU
On the panel 49VU: - For ENG1 FDU, open the C/B 7WD1. - For ENG2 FDU, open the C/B 8WD2. On the panel 121VU: - For ENG1 FDU, open the C/B 8WD1. - For ENG2 FDU, open the C/B 7WD2. - After 5 seconds, close the C/Bs.
26
APU FIRE LOOP k FAULT
APU FDU
On the panel 121VU: - Open the C/Bs 2WG and 1WG. - After 5 seconds, close the C/Bs.
Subtask 24-00-00-810-079-A Flight Controls
ATA SYSTEM MALFUNCTION 27
F/CTL ELAC 1(2) FAULT
COMPUTER ELAC
F/CTL ALTN LAW FAULT
RESET PROCEDURE Reset the defective ELAC: - Make sure that the hydraulic systems are depressurized before the reset. - Set the ELAC pushbutton switch to OFF, then to ON.
27
ELAC or SEC malfunction
ELAC or SEC
Reset the defective ELAC: - Make sure that the hydraulic systems are depressurized before the reset. Open, then close the C/B of the defective ELAC or SEC. For the ELAC 1(2): - On the panel 49VU, C/B 15CE1. - On the panel 121VU, C/B 15CE2. For the SEC 1(2)(3): - On the panel 49VU, C/B 21CE1. - On the panel 121VU, C/B 21CE2 or 21CE3.
27
E/W FCDC1(2) FAULT
FCDC
On the panel 49VU: - For FCDC1, open the C/B 20CE1. - For FCDC2, open the C/B 20CE2.
ATA SYSTEM MALFUNCTION
COMPUTER
RESET PROCEDURE - After 5 seconds, close the C/Bs.
Subtask 24-00-00-810-089-A Fuel ATA
28
SYSTEM MALFUNCTION Loss of fuel quantity indication or,
COMPUTER
FQIC
RESET PROCEDURE
On the overhead circuit breaker panel 49VU: - Open the C/B 1QT.
Simultaneous triggering of FUEL L XFR VALVE CLOSED and FUEL R XFR
On the rear circuit breaker panel 121VU: - Open the C/B 2QT. After 5 seconds, close the two C/B's.
VALVE CLOSED, although FUEL SD indicates no anomaly. Subtask 24-00-00-810-080-A Ice and Rain Protection ATA SYSTEM MALFUNCTION
COMPUTER
RESET PROCEDURE
ATA SYSTEM MALFUNCTION 30
ANTI ICE
COMPUTER WHC
L(R)/WINSHIELD (WINDOW)
RESET PROCEDURE Open then close the C/B of the defective WHC. For the WHC1: - on the panel 122VU, C/B 5DG1. For the WHC2: - on the panel 122VU, C/B 5DG2.
Subtask 24-00-00-810-081-A Indicating/Recording Systems ATA SYSTEM MALFUNCTION
COMPUTER
31
FWC
FWS FWC 1(2) FAULT
RESET PROCEDURE Open then close the C/B of the defective FWC For the FWC1: - on the panel 49VU, C/B 3WW For the FWC2: - on the panel 121VU, C/B 2WW.
Subtask 24-00-00-810-082-A Landing Gear ATA SYSTEM MALFUNCTION COMPUTER
RESET PROCEDURE
ATA SYSTEM MALFUNCTION COMPUTER 32
Braking malfunction
BSCU
RESET PROCEDURE On the panel 121VU: - open the C/Bs 1GG, 2GG, 3GG and 4GG - after 5 seconds, close the CB's
32
L/G LGCIU 1(2) FAULT
LGCIU 1(2)
For the LGCIU 1: - on the panel 121VU, open the C/B 52GA then on 49VU, C/B 1GA. Then close the C/B 1GA and C/B 52GA For the LGCIU 2: - on the panel 121VU, open then close the C/B 2GA.
Subtask 24-00-00-810-083-A Navigation ATA SYSTEM MALFUNCTION COMPUTER 34
NAV MMR 1(2) FAULT
MMR1(2)
RESET PROCEDURE For the MMR 1: - On the panel 49VU, open the C/B 42RT1. - After 5 seconds, close the C/B. For the MMR 2: - On the panel 121VU, open the C/B 42RT2.
ATA SYSTEM MALFUNCTION COMPUTER
RESET PROCEDURE - After 5 seconds, close the C/B.
34
NAV TCAS FAULT
TCAS
On the panel 121VU: - Open the C/B 4SG. - After 5 seconds, close the C/B.
34
NAV GPWS FAULT
GPWC
- Open the C/B 3WZ.
NAV GPWS TERR DET FAULT 34
NAV GPS 1(2) FAULT
On the panel 121VU: - After 5 seconds, close the C/B.
GPSSU
On the panel 121VU: - For GPSSU1, open the C/B 2SN1. - For GPSSU2, open the C/B 2SN2. - After 5 seconds, close the C/Bs.
34
NAV RA 1(2) FAULT
XCVR-RA
On the panel 121VU: - For XCVR-RA 1, open the C/B 1SA1. - For XCVR-RA 2, open the C/B 1SA2. - After 5 seconds, close the C/Bs.
Subtask 24-00-00-810-084-A Water/Waste ATA SYSTEM MALFUNCTION COMPUTER 38
Fault messages on the FAP in the cabin
Vacuum System Controller
RESET PROCEDURE On the panel 2001VU: - open the C/B 35MG - after 30 seconds, close the C/B.
Subtask 24-00-00-810-085-A Information Systems ATA SYSTEM MALFUNCTION COMPUTER 46
ATSU malfunction
ATSU
RESET PROCEDURE On the rear circuit breaker panel 121VU: - Open the C/Bs in this order: 3TX1 and 5TX1. - After 5 seconds, close the C/Bs in this order: 5TX1 and 3TX1.
Subtask 24-00-00-810-086-A Engine ATA SYSTEM MALFUNCTION COMPUTER 70
ENG IGN A+B FAULT
FADEC and
RESET PROCEDURE On the panels 49VU and 121VU open then close the C/B of
ATA SYSTEM MALFUNCTION COMPUTER
RESET PROCEDURE
EIU 70
ENG 1(2) FADEC A(B) FAULT
FADEC
- For the FADEC 1, C/Bs 2KS1 and 4KS1. - For the FADEC 2, C/Bs 2KS2 and 4KS2.
Subtask 24-00-00-810-090-A Engine Indicating ATA SYSTEM MALFUNCTION COMPUTER 77
RESET PROCEDURE
Loss of N1VIB and N2VIB EVMU
On the panel 121VU:
indications for ENG1(2) in ECAM SD
- Open the C/B 2EV. - After 5 seconds, close the C/B.
