Detection of incorrect AOA value from the ADR2 to the FWC2

TASK 31-53-00-810-954-A
Detection of incorrect AOA value from the ADR2 to the FWC2

1. Possible Causes

2. Job Set-up Information
A. Referenced Information

REFERENCE	DESIGNATION
AMM 34-11-19-000-001	Removal of the Angle of Attack Sensor
AMM 34-11-19-200-001	Inspection of the Angle-Of-Attack Sensor
AMM 34-11-19-400-001	Installation of the Angle of Attack Sensor
AMM 34-13-00-710-006	Operational Test of the AOA SENSOR TEST

3. Fault Confirmation
Subtask 31-53-00-710-289-A

A. Not applicable

4. Fault Isolation
Subtask 31-53-00-810-190-B

A. If the PFR gives the maintenance message FWC2 :ADC2 (1FP2) AOA SIGNAL and the maintenance status NAV F/O AOA FAULT:
(1) Do a check of the AOA sensor 2 AMM 34-11-19-200-001.
(a) If there is a hard point or damage on the vane, replace the AOA sensor 2 AMM 34-11-19-000-001 and AMM 34-11-19-400-001.
(2) Do the operational test of the AOA SENSOR TEST AMM 34-13-00-710-006.
(a) If the results of the test are not satisfactory:

Replace the AOA sensor 2 AMM 34-11-19-000-001 and AMM 34-11-19-400-001.

[Rev.8 from Aug 2018] 2026.04.04 04:30:21 UTC