Operational Test of the Captain (First Officer) Seat Safety-Harness Assembly

TASK 25-11-63-710-801-A
Operational Test of the Captain (First Officer) Seat Safety-Harness Assembly

ZONE: 211
ZONE: 212

1. Reason for the Job

NOTE: This is to make sure that the Captain (First Officer) seat safety-harness assembly operates correctly.

2. Job Set-up Information
A. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
211	COCKPIT
212	COCKPIT

3. Job Set-up
Subtask 25-11-63-861-052-A

A. There is no special job set-up for this task.

4. Procedure
Subtask 25-11-63-710-050-A

A. Operational Test of the Captain (First Officer) Seat Safety-Harness Assembly

ACTION	RESULT
1.Initial test:
(a) Connect all the connectors to the buckle assembly.	(a) The connectors engage.
(b) Turn the buckle control clockwise to release the connectors from the buckle assembly.	(b) Only one connector stays engaged and all the others are released. The buckle control moves back to the CLOSED position.
(c) Do step (a) again. Then, turn the buckle control counterclockwise to release the connectors from the buckle assembly.	(c) Only one connector stays engaged and all the others are released. The buckle control moves back to the CLOSED position.
(d) Slowly pull the shoulder straps out of the reel assembly to the fully extended position. Monitor the shoulder straps to make sure that the reel operates correctly. Do a general visual inspection of the shoulder straps.	(d) The shoulder straps extend. Make sure that the shoulder straps do not have too much web fray or cuts.
(e) Slowly let the shoulder straps move into the reel assembly.	(e) The shoulder straps retract.
(f) Do steps (d) and (e) again for mininum of four cycles.	(f) The shoulder straps retract smoothly and fully and do not catch.
(g) Hold the reel assembly and pull approximately 25% of the shoulder straps from the reel assembly. Then, quickly pull the shoulder straps until the system locks.	(g) The locking system locks and the shoulder straps cannot extend.
(h) Slowly let the shoulder straps move into the reel assembly.	(h) The shoulder straps retract.
(i) Do steps (g) and (h) again for a minimum of four cycles.	(i) The locking system locks and the shoulder straps retract.
2.Test of the control handle assembly:
(a) Move the control handle from the LOCK position to the UNLOCK position.	(a) The linkage of the control handle moves at the same time as the control handle.
(b) Do step (a) again for a minimum of four cycles.	(b) The linkage of the control handle moves at the same time as the control handle.
(c) Move the control handle to the LOCK position.	(c) The reel assembly locks. The shoulder straps cannot extend.
(d) Move the control handle to the UNLOCK position.	(d) The shoulder straps can extend freely. The reel assembly only locks if you pull the shoulder straps quickly.

5. Close-up
Subtask 25-11-63-862-051-A

A. Make sure that the work area is clean and clear of tools and other items.

[Rev.10 from 2021] 2026.04.01 06:01:54 UTC