AIP - Fault in the AFT LH Attendant Indication Panel
TASK 23-73-00-810-849-A
AIP - Fault in the AFT LH Attendant Indication Panel
1. Possible Causes
A. Referenced Information
3. Fault Confirmation
Subtask 23-73-00-710-072-A ** ON A/C NOT FOR ALL Subtask 23-73-00-710-072-B ** ON A/C NOT FOR ALL 4. Fault Isolation
Subtask 23-73-00-810-073-A
[Rev.8 from Aug 2018]
2026.04.04 04:25:52 UTC
AIP - Fault in the AFT LH Attendant Indication Panel
1. Possible Causes
- AIP
- DEU-B
- wiring
A. Referenced Information
| REFERENCE | DESIGNATION |
|---|---|
| AMM 23-73-00-740-005 | BITE-Test of the Cabin Intercommunication Data System (CIDS) through the CFDS |
| AMM 23-73-22-000-001 | Removal of the Attendant Indication Panel |
| AMM 23-73-22-400-001 | Installation of the Attendant Indication Panel |
| ASM 237327 | |
| AMM 23-73-47-000-001 | Removal of the Decoder/Encoder Unit B (300RH) |
| AMM 23-73-47-400-001 | Installation of the Decoder/Encoder Unit B (300RH) |
Subtask 23-73-00-710-072-A ** ON A/C NOT FOR ALL Subtask 23-73-00-710-072-B ** ON A/C NOT FOR ALL 4. Fault Isolation
Subtask 23-73-00-810-073-A
A. If the test gives a different maintenance message, do the trouble shooting procedure related to the maintenance message.
Subtask 23-73-00-810-207-A ** ON A/C NOT FOR ALL B. If the CIDS BITE test gives the maintenance message ATTND IND PNL AFT L:
Subtask 23-73-00-810-207-B ** ON A/C NOT FOR ALL - install a new AIP AMM 23-73-22-000-001 AMM 23-73-22-400-001.
- replace the related DEU-B AMM 23-73-47-000-001 AMM 23-73-47-400-001.
- do a check and repair the wiring between the:
DEU-B connector C/49 and the AIP connector A/1,
DEU-B connector C/50 and the AIP connector A/2,
DEU-B connector C/16 and the AIP connector A/4,
DEU-B connector C/17 and the AIP connector A/5,
DEU-B connector C/25 and the AIP connector A/6,
AIP connector A/3 and GND.
ASM 237327
B. If the test confirms the fault:
Subtask 23-73-00-810-210-A - install a new AIP AMM 23-73-22-000-001 AMM 23-73-22-400-001.
- replace the related DEU-B AMM 23-73-47-000-001 AMM 23-73-47-400-001.
- do a check and repair the wiring between the:
DEU-B connector C/17 and the AIP connector A/1,
DEU-B connector C/31 and the AIP connector A/2,
DEU-B connector C/15 and the AIP connector A/4,
DEU-B connector C/16 and the AIP connector A/5,
DEU-B connector C/32 and the AIP connector A/6.
ASM 237327
C. Do the test given in Para. 3. A.