Loss of the AOA 3 Input to the ADR 3

TASK 34-13-00-810-908-A
Loss of the AOA 3 Input to the ADR 3

1. Possible Causes

SENSOR-ANGLE OF ATTACK, 3 [3FP3]
ADIRU-3 [1FP3]
wiring from the angle of attack sensor 3 (3FP3) to the AOA INPUTS 1 and 2 of the ADIRU 3 (1FP3)

2. Job Set-up Information
A. Referenced Information

REFERENCE	DESIGNATION
ASM 341102
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 34-12-34-000-001	Removal of the ADIRU
AMM 34-12-34-400-001	Installation of the ADIRU
AMM 34-13-00-740-002	INTERFACE TEST of the ADR

3. Fault Confirmation
Subtask 34-13-00-740-215-A

A. Test
Do the Interface test of the ADR (system 3) AMM 34-13-00-740-002.

4. Fault Isolation
Subtask 34-13-00-810-157-B

A. If the test gives the maintenance message AOA SENSOR3 (3FP3)/ ADIRU3 (1FP3):

replace the SENSOR-ANGLE OF ATTACK, 3 [3FP3] AMM 34-11-19-000-001 and AMM 34-11-19-400-001

(1) If the fault continues:

(a) If the fault continues:

do a check and repair the wiring from the angle of attack sensor 3 (3FP3) to the AOA INPUTS 1 and 2 of the ADIRU 3 (1FP3) ASM 341102.

Subtask 34-13-00-810-254-A ** ON A/C NOT FOR ALL

B. If the test is OK, reset the ADIRU (NAV-OFF-NAV) to clear the ECAM message. No other maintenance action is necessary.

Subtask 34-13-00-740-216-A

C. Do the test given in Para. 3.

[Rev.8 from Aug 2018] 2026.04.04 04:40:01 UTC