APU Speed (N) indication replaced by amber XX (131-9(A))

TASK 49-00-81-810-896-A
APU Speed (N) indication replaced by amber XX (131-9(A))

1. Possible Causes

2. Job Set-up Information
A. Referenced Information

REFERENCE	DESIGNATION
AMM 49-00-00-710-010	Operational Test of the APU
AMM 49-61-34-000-003	Removal of the Electronic Control Box (ECB) (131-9(A))
AMM 49-61-34-400-003	Installation of the Electronic Control Box (ECB) (131-9(A))

3. Fault Confirmation
Subtask 49-00-81-710-242-A ** ON A/C NOT FOR ALL

A. Do the operational test of the APU AMM 49-00-00-710-010.
(1) Do a check of the APU SPEED (N) indication on the lower ECAM DU (APU Page).

4. Fault Isolation
Subtask 49-00-81-810-161-A ** ON A/C NOT FOR ALL

A. If the APU SPEED (N) indication is replaced by amber XX:

Subtask 49-00-81-710-243-A ** ON A/C NOT FOR ALL

B. Do the test given in Para. 3.

[Rev.8 from Aug 2018] 2026.04.04 04:34:39 UTC