Outflow Valve Auto Motor 1 or 2 Fault

TASK 21-31-00-810-804-A
Outflow Valve Auto Motor 1 or 2 Fault

1. Possible Causes

2. Job Set-up Information
A. Referenced Information

REFERENCE	DESIGNATION
AMM 21-31-00-710-002	Operational Test of the Pressure Control and Monitoring
AMM 21-31-51-000-001	Removal of the Outflow Valve (From Inside)
AMM 21-31-51-000-003	Removal of the Outflow Valve (10HL) - Auto Motor 10HL-3 (10HL-4)
AMM 21-31-51-000-006	Removal of the Outflow Valve (From Outside)
AMM 21-31-51-400-001	Installation of the Outflow Valve (From Inside)
AMM 21-31-51-400-003	Installation of the Outflow Valve (10HL) - Auto Motor 10HL-3 (10HL-4)
AMM 21-31-51-400-006	Installation of the Outflow Valve (From Outside)

3. Fault Confirmation
Subtask 21-31-00-710-053-A

A. Test
(1) Do the operational test of the pressure control and monitoring system AMM 21-31-00-710-002.

4. Fault Isolation
Subtask 21-31-00-810-057-A

A. If one or both of these reports, LAST LEG REPORT, PREVIOUS LEG REPORT and/or the test gives the maintenance message,

OUTFLOW VALVE ELEC 1 (88):
replace the VALVE-OUTFLOW (10HL), AUTO MOTOR 1 AMM 21-31-51-000-003 and AMM 21-31-51-400-003.

(1) If the fault continues:

Subtask 21-31-00-810-058-A

B. If one or both of these reports, LAST LEG REPORT, PREVIOUS LEG REPORT and/or the test gives the maintenance message,

OUTFLOW VALVE ELEC 2 (88):
replace the VALVE-OUTFLOW (10HL), AUTO MOTOR 2 AMM 21-31-51-000-003 and AMM 21-31-51-400-003.

(1) If the fault continues:

Subtask 21-31-00-710-061-A

C. Do the test as given in the Para. 3.A.

[Rev.8 from Aug 2018] 2026.04.04 04:24:41 UTC