Failure of the Angle of Attack Sensors 1

TASK 27-93-00-810-960-A
Failure of the Angle of Attack Sensors 1

1. Possible Causes

2. Job Set-up Information
A. Referenced Information

REFERENCE	DESIGNATION
TSM TASK 34-11-00-810-861-A	Different Angle of Attack Value on the three ADIRUs
AMM 34-11-19-000-001	Removal of the Angle of Attack Sensor
AMM 34-11-19-400-001	Installation of the Angle of Attack Sensor

3. Fault Confirmation
Subtask 27-93-00-700-184-A ** ON A/C NOT FOR ALL

A. Test
Not Applicable

4. Fault Isolation
Subtask 27-93-00-810-238-A ** ON A/C NOT FOR ALL

A. If the maintenance message AOA1 is shown:
(1) Replace the SENSOR-ANGLE OF ATTACK, 1 [3FP1] AMM 34-11-19-000-001 and AMM 34-11-19-400-001.
(2) Do the trouble shooting procedure (Ref. TSM TASK 34-11-00-810-861).

[Rev.8 from Aug 2018] 2026.04.04 04:28:09 UTC