DOC AIRBUS | TSM A320FLoss of the RA2 Input
TASK 34-48-00-810-853-A
Loss of the RA2 Input
1. Possible Causes
A. Referenced Information
3. Fault Confirmation
Subtask 34-48-00-740-114-A ** ON A/C NOT FOR ALL 4. Fault Isolation
Subtask 34-48-00-810-118-A ** ON A/C NOT FOR ALL
[Rev.8 from Aug 2018]
2026.04.04 04:33:18 UTC
Loss of the RA2 Input
1. Possible Causes
- GPWC [1WZ]
wiring from the GPWC (1WZ) to the radio altimeter transceiver 2 (2SA2)
A. Referenced Information
| REFERENCE | DESIGNATION |
|---|---|
| AMM 34-48-00-740-002 | BITE Test of the GPWS |
| ASM 344802 | |
| AMM 34-48-34-000-001 | Removal of the GPWC |
| AMM 34-48-34-400-001 | Installation of the GPWC |
Subtask 34-48-00-740-114-A ** ON A/C NOT FOR ALL 4. Fault Isolation
Subtask 34-48-00-810-118-A ** ON A/C NOT FOR ALL
A. If the test gives the maintenance message RA2(2SA2)/GPWC(1WZ):
Subtask 34-48-00-740-115-A ** ON A/C NOT FOR ALL - replace the GPWC [1WZ] AMM 34-48-34-000-001 and AMM 34-48-34-400-001.
- do a check and repair the
wiring from the GPWC (1WZ) to the radio altimeter transceiver 2 (2SA2) : from pins AA/8C, 8D to pins AB/2G, 3G ASM 344802.
B. Do the test given in Para. 3.