Loss of the Right Spoiler 2 Servo Valve Signal for the SEC 3

TASK 27-60-00-810-823-A
Loss of the Right Spoiler 2 Servo Valve Signal for the SEC 3

1. Possible Causes

SEC-3 [1CE3]
servovalve
wiring of the SV signal from the servo control (31CE4) to the SEC 3 (1CE3)

2. Job Set-up Information
A. Referenced Information

REFERENCE	DESIGNATION
AMM 27-64-51-000-002	Removal of the Servo-Valve from the Spoiler Servo-Control
AMM 27-64-51-400-002	Installation of the Servo-Valve on the Spoiler Servo-Control
ASM 279404
AMM 27-94-34-000-001	Removal of the SEC
AMM 27-94-34-400-001	Installation of the SEC
AMM 27-96-00-710-020	Operational Test of the Side Stick Assembly (Activation for the BITE Test)
AMM 27-96-00-740-001	BITE Test of the EFCS (Ground Scanning)

3. Fault Confirmation
Subtask 27-60-00-700-078-A

A. Test
(1) Do the operational test of the side stick assembly (activation for BITE test) AMM 27-96-00-710-020.
(2) Do the BITE test of the EFCS (Ground scanning) AMM 27-96-00-740-001.

4. Fault Isolation
Subtask 27-60-00-810-072-A

A. If the BITE test gives the maintenance message:
R SPLR 2 SERVO VLV 31CE4 OR OUTPUT FROM SEC 3:

Replace the SEC-3 [1CE3] , AMM 27-94-34-000-001 and AMM 27-94-34-400-001.

(1) If the fault continues:

Replace the servovalve related to the maintenance message, AMM 27-64-51-000-002 and AMM 27-64-51-400-002.

NOTE: The resistance must be 500 ohms +/- 10 %.

(2) If the fault continues:

Do a check and repair the wiring of the SV signal from the servo control (31CE4) to the SEC 3 (1CE3), ASM 279404.

Subtask 27-60-00-700-079-A

B. Do the tests given in Para. 3.

[Rev.8 from Aug 2018] 2026.04.04 04:27:43 UTC