Loss of the Power Supply 26VAC of the Rudder Trim Side 2

TASK 22-62-00-810-812-A
Loss of the Power Supply 26VAC of the Rudder Trim Side 2

1. Possible Causes

electronic module
wiring of 26VAC signal (from the rudder trim actuator (10CC) pin B/G and pin A/A to the first terminal block)
wiring of the ground signal at rudder trim actuator (10CC) pin A/B and pin B/H

2. Job Set-up Information
A. Referenced Information

REFERENCE	DESIGNATION
ASM 226701
AMM 22-91-00-710-001	Ground Scanning of the AFS
AMM 27-22-51-000-001	Removal of the Rudder Trim Actuator
AMM 27-22-51-400-001	Installation of the Rudder Trim Actuator

3. Fault Confirmation
Subtask 22-62-00-710-074-A

A. Test
(1) Do the Ground Scanning of the AFS AMM 22-91-00-710-001.

4. Fault Isolation
Subtask 22-62-00-810-071-A

A. If the test gives the maintenance message AFS : 231 XPA BUS BAR:

Replace the electronic module of the rudder trim actuator (10CC) AMM 27-22-51-000-001 and AMM 27-22-51-400-001.

(1) If the fault continues:

Do a check of the wiring of 26VAC signal (from the rudder trim actuator (10CC) pin B/G and pin A/A to the first terminal block), ASM 226701.

(a) If there is no continuity:

(b) If there is continuity:

Do a check and repair the wiring of the ground signal at rudder trim actuator (10CC) pin A/B and pin B/H, ASM 226701.

Subtask 22-62-00-710-075-A

B. Do the test given in Para. 3.

[Rev.8 from Aug 2018] 2026.04.04 04:25:12 UTC