Detailed Inspection of Mechanical Control Linkage in FIN

TASK 27-21-00-210-003-A
Detailed Inspection of Mechanical Control Linkage in FIN

ZONE: 325

1. Reason for the Job
Refer to the MPD TASK: 272100-07
DETAILED INSPECTION OF MECHANICAL CONTROL LINKAGE IN FIN
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment

REFERENCE	QTY	DESIGNATION
No specific	1	ACCESS PLATFORM 10M (33 FT) - ADJUSTABLE
No specific	AR	WARNING NOTICE(S)

B. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
325	VERTICAL STABILIZER TRAILING EDGE
325BL, 325CL, 325DL, 325EL

C. Referenced Information

REFERENCE	DESIGNATION
Component Location

3. Job Set-up
Subtask 27-21-00-941-059-A

A. Put the WARNING NOTICE(S) in position to tell persons not to pressurize the hydraulic systems.

Subtask 27-21-00-010-058-A

B. Get Access
(1) Put an ACCESS PLATFORM 10M (33 FT) - ADJUSTABLE in position at zone 325.
(2) Open the access doors 325BL 325CL 325DL 325EL.

4. Procedure
Subtask 27-21-00-210-054-A

A. Detailed inspection
(1) Make sure that there is no corrosion, no wear, no damage, no crack, no disconnection on the control rods that follow:

the rod (11) which connects the upper bellcrank (8) to the centering spring rod (1),
the rod (2) which connects the centering spring rod (1) to the travel limitation unit (10),
the rod (9) which connects the upper bellcrank (8) to the travel limitation unit (10),
the centering spring rod (1).

(a) Make sure that their attachment bolts have locknuts and that the safety pins are correctly installed.
(2) Make sure that there is no corrosion, no wear, no damage, no crack on all the control linkage components (1), (2), (3), (4), (5), (6), (7) and (9).

5. Close-up
Subtask 27-21-00-410-058-A

A. Close Access
(1) Close the access doors 325BL 325CL 325DL 325EL.
(2) Remove the access platform(s).

Subtask 27-21-00-942-066-A

B. Remove the WARNING NOTICE(S).

[Rev.10 from 2021] 2026.03.31 23:48:04 UTC