Disagree of the Angle of Attack Sensors

TASK 27-93-00-810-963-A
Disagree of the Angle of Attack Sensors

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
AMM 34-13-00-200-001	Visual Check of Pitot probes, Static ports, AOA and TAT sensors

3. Fault Confirmation
Subtask 27-93-00-700-187-A ** ON A/C NOT FOR ALL

A. Test

4. Fault Isolation
Subtask 27-93-00-810-241-A ** ON A/C NOT FOR ALL

A. If one of these maintenance messages is shown:
AOA DATA DISAGREE
ELAC1 AOA DATA DISAGREE
ELAC2 AOA DATA DISAGREE

do a visual check of the SENSOR-ANGLE OF ATTACK, 1 [3FP1] SENSOR-ANGLE OF ATTACK, 2 [3FP2] SENSOR-ANGLE OF ATTACK, 3 [3FP3] AMM 34-13-00-200-001.

(1) If one (or more) angle of attack sensor(s) is (are) damaged:

replace the defective angle of attack sensor(s) AMM 34-11-19-000-001 AMM 34-11-19-400-001.

(2) If the angle of attack sensors are not damaged:

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