DOC AIRBUS | TSM A320FBITE Test of the GPWS Inoperative
TASK 34-48-00-810-812-A
BITE Test of the GPWS Inoperative
1. Possible Causes
A. Referenced Information
3. Fault Confirmation
Subtask 34-48-00-740-072-A
Subtask 34-48-00-810-062-C
[Rev.8 from Aug 2018]
2026.04.04 04:33:15 UTC
BITE Test of the GPWS Inoperative
1. Possible Causes
- GPWC [1WZ]
- LGCIU-1 [5GA1]
wiring of the AIR/GROUND discrete from the LGCIU1 (5GA1) to the GPWC (1WZ)
A. Referenced Information
| REFERENCE | DESIGNATION |
|---|---|
| AMM 32-31-71-000-001 | Removal of the LGCIU |
| AMM 32-31-71-400-001 | Installation of the LGCIU |
| AMM 34-48-00-740-002 | BITE Test of the GPWS |
| ASM 344801 | |
| AMM 34-48-34-000-001 | Removal of the GPWC |
| AMM 34-48-34-400-001 | Installation of the GPWC |
Subtask 34-48-00-740-072-A
A. Test
(1) Not applicable, the fault is evident.
4. Fault Isolation(1) Not applicable, the fault is evident.
Subtask 34-48-00-810-062-C
A. If you cannot start the BITE test of the Enhanced GPWS on the MCDU:
Subtask 34-48-00-740-073-C - replace the GPWC [1WZ] AMM 34-48-34-000-001 and AMM 34-48-34-400-001.
- replace the LGCIU-1 [5GA1] AMM 32-31-71-000-001 and AMM 32-31-71-400-001.
- do a check and repair the
wiring of the AIR/GROUND discrete from the LGCIU1 (5GA1) to the GPWC (1WZ) ASM 344801.