LGCIU Fault A320
WARNING: MAKE SURE THAT THE GROUND SAFETY-LOCKS ARE IN POSITION ON THE LANDING GEAR. THIS WILL PREVENT UNWANTED MOVEMENT OF THE LANDING GEAR, AND THUS POSSIBLE INJURY TO PERSONS AND DAMAGE TO THE AIRCRAFT AND/OR EQUIPMENT.
1.Possible Causes:
-LGCIU-1 (5GA1)
-LGCIU-2 (5GA2)
2. Job Set-up Information
A. Referenced Information
| REFERENCE | DESIGNATION |
| Ref. AMM 31-32-00-860-009 | Procedure to Get Access to the SYSTEM REPORT/TEST/L/G Page |
| Ref. AMM 32-31-71-000-001 | Removal of the LGCIU |
| Ref. AMM 32-31-71-400-001 | Installation of the LGCIU |
| Ref. AMM 32-69-00-740-001 | BITE Check of Landing-Gear Control Interface-Unit (LGCIU) With Use of MCDU to Ensure that Continuous BITE is Operative |
| Ref. 32-31-00-03 | NORMAL EXTENSION AND RETRACTION — TASK SUPPORTING DATA |
3. Fault Confirmation
SUBTASK 32-31-00-710-051-A
A. Test
(1) Do the BITE test of the LGCIU identified on the PFR Ref. AMM 32-69-00-740-001.
NOTE: If LGCIU 1 and LGCIU 2 are shown as defective on the PFR, do the troubleshooting of the two faults independently.
(2) No maintenance steps are necessary, if:
— The TSD shows fault code 1FD or 1FE and the second word is xxxC (PBIT satisfactory)
AND -The cargo loading system operates correctly.
4. Fault Isolation
SUBTASK 32-31-00-810-051-A
A. Procedure
(1) If the BITE test result shows a fault message:
(a) Interchange the LGCIU-1 and LGCIU-2 Ref. AMM 32-31-71-000-001 and Ref. AMM 32-31-71-400-001.
(2) If the fault moves to the other LGCIU position:
(a) Interchange back the LGCIU-1 and LGCIU-2 and replace the defective LGCIU-1 (5GA1) or LGCIU-2 (5GA2) Ref. AMM 32-31-71-000-001 and Ref. AMM 32-31-71-400-001.
(3) If the fault does not move to the other LGCIU position, or TEST OK is shown:
(a) Get access to the SYSTEM REPORT/TEST/L/G page Ref. AMM 31-32-00-860-009.
(b) On the MCDU, at the LGCIU main menu, push the TROUBLE SHOOT DATA line key.
(c) If the fault code(s) is shown, record it.
(d) Do the troubleshooting procedure related to the fault code shown that occurred on the last flight Ref. TSM 32-31-00-03.
1 If the fault code refers to this task, replace the applicable LGCIU Ref. AMM 32-31-71-000-001 and Ref. AMM 32-31-71-400-001.
(4) Make sure that the serviceable LGCIU is installed in its initial position.
5. Close-up
SUBTASK 32-31-00-860-066-A
A. Put the aircraft back to its initial configuration.
