DOC AIRBUS | TSM A320FLoss of the ILS1 Input or Glide Slope Deviation
TASK 34-48-00-810-805-A
Loss of the ILS1 Input or Glide Slope Deviation
1. Possible Causes
A. Referenced Information
3. Fault Confirmation
Subtask 34-48-00-740-058-C 4. Fault Isolation
Subtask 34-48-00-810-055-A ** ON A/C NOT FOR ALL
[Rev.8 from Aug 2018]
2026.04.04 04:33:14 UTC
Loss of the ILS1 Input or Glide Slope Deviation
1. Possible Causes
- GPWC [1WZ]
wiring of the ILS DATA INPUT bus from the GPWC (1WZ) to the first terminal block
A. Referenced Information
| REFERENCE | DESIGNATION |
|---|---|
| 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 34-48-00-740-058-C 4. Fault Isolation
Subtask 34-48-00-810-055-A ** ON A/C NOT FOR ALL
A. If the BITE test gives the maintenance message ILS1 (2RT1)/GPWC (1WZ):
Subtask 34-48-00-810-055-C ** 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 of the ILS DATA INPUT bus from the GPWC (1WZ) to the first terminal block ASM 344801.
A. If the BITE test gives the maintenance message MMR1 (40RT1)/GPWC (1WZ):
Subtask 34-48-00-740-059-A - replace the GPWC [1WZ] AMM 34-48-34-000-001 and AMM 34-48-34-400-001.
- do a check and repair the
wiring of the ILS DATA INPUT bus from the GPWC (1WZ) to the first terminal block ASM 344801.
B. Do the test given in Para. 3.