Pack 1 Controller Pin Program Mismatch
TASK 21-61-00-810-838-A
Pack 1 Controller Pin Program Mismatch
1. Possible Causes
A. Referenced Information
3. Fault Confirmation
Subtask 21-61-00-710-120-A ** ON A/C NOT FOR ALL
Subtask 21-61-00-810-151-A ** ON A/C NOT FOR ALL
[Rev.8 from Aug 2018]
2026.04.04 04:24:55 UTC
Pack 1 Controller Pin Program Mismatch
1. Possible Causes
- P1 CONTROLLER [7HH]
A. Referenced Information
| REFERENCE | DESIGNATION |
|---|---|
| AMM 21-61-34-000-001 | Removal of the Pack Controller |
| AMM 21-61-34-400-001 | Installation of the Pack Controller |
| AMM 21-63-00-710-004 | Operational Test of the Cockpit and Cabin Temperature Control with CFDS/MCDU |
Subtask 21-61-00-710-120-A ** ON A/C NOT FOR ALL
A. Do the operational test of the cockpit and cabin temperature-control system with CFDS/MCDU AMM 21-63-00-710-004.
4. Fault IsolationSubtask 21-61-00-810-151-A ** ON A/C NOT FOR ALL
A. If the test gives the maintenance message P1 PIN PROGRAM MISMATCH:
Subtask 21-61-00-710-121-A ** ON A/C NOT FOR ALL - replace the P1 CONTROLLER [7HH] AMM 21-61-34-000-001 and AMM 21-61-34-400-001.
B. Do the test given in Para. 3.