APU Bleed Control Valve indication replaced by amber XX (131-9(A))

TASK 49-00-81-810-893-A
APU Bleed Control Valve indication replaced by amber XX (131-9(A))

1. Possible Causes

Load Control Valve (8050KM)
ELECTRONIC CONTROL BOX [59KD]

2. Job Set-up Information
A. Referenced Information

REFERENCE	DESIGNATION
TSM TASK 49-00-81-810-864-A	"LCV-OPEN"- Signal Fault (131-9(A))
AMM 31-32-00-860-001	Procedure to Get Access to the SYSTEM REPORT/TEST Menu Page
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 49-00-81-710-236-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 Bleed Control-Valve indication on the lower ECAM DU (APU Page).
(2) On the MCDU, get access to the APU menu page SYSTEM REPORT/TEST AMM 31-32-00-860-001.

4. Fault Isolation
Subtask 49-00-81-810-158-A ** ON A/C NOT FOR ALL

A. Maintenance Action
(1) If there is a CLASS 2 Fault Message

WRG: APU LOAD VALVE

with the LRU TROUBLE SHOOT DATA menu information:
LOAD VALVE OPEN SIGNAL SHOWS CIRCUIT FAILURE
Fault Code Number: 138

and the Bleed Control Valve indication is replaced by amber XX:

do the trouble shooting of the Load Control Valve (8050KM) (Ref. TSM TASK 49-00-81-810-864).

(2) If there is no CLASS 2 Fault Message and the Bleed Control Valve indication is replaced by amber XX:

replace the ELECTRONIC CONTROL BOX [59KD] AMM 49-61-34-000-003 and AMM 49-61-34-400-003.

Subtask 49-00-81-710-237-A ** ON A/C NOT FOR ALL

B. Do the test given in Para. 3.

[Rev.8 from Aug 2018] 2026.04.04 04:34:38 UTC