PISA unit fault

TASK 23-73-00-810-943-A
PISA unit fault

1. Possible Causes

2. Job Set-up Information
A. Referenced Information

REFERENCE	DESIGNATION
AMM 23-73-00-740-005	BITE-Test of the Cabin Intercommunication Data System (CIDS) through the CFDS

3. Fault Confirmation
Subtask 23-73-00-710-375-A ** ON A/C NOT FOR ALL

A. Test
(1) Do the CIDS Interface and Power-Up Test via the CFDS AMM 23-73-00-740-005.

4. Fault Isolation
Subtask 23-73-00-810-713-A ** ON A/C NOT FOR ALL

A. If the test gives a different maintenance message, do the trouble shooting procedure related to the maintenance message.

5. Close-up
Subtask 23-73-00-710-376-A ** ON A/C NOT FOR ALL

A. Do the test given in para. 3.A.

[Rev.8 from Aug 2018] 2026.04.04 04:38:58 UTC