Installation of the Lock Fitting at the Door Frame

TASK 52-22-31-400-004-A
Installation of the Lock Fitting at the Door Frame

WARNING: BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERIAL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.

1. Reason for the Job
Self explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment

REFERENCE	QTY	DESIGNATION
No specific	1	ACCESS PLATFORM 4M (13 FT)-ADJUSTABLE
No specific	1	SCRAPER - PLASTIC
No specific	1	SCRAPER - WOODEN

B. Consumable Materials

REFERENCE	DESIGNATION
(Material No.06AAB1)	Polysulfide Sealant-General Purpose Fillet -
(Material No.06AAC1)	Polysulfide Sealant-General Purpose Interfay -

C. Referenced Information

REFERENCE	DESIGNATION
TASK 25-23-47-000-004-A	Removal of the Door Frame Linings of the LH FWD Emergency Exit Door, zone 231
TASK 25-23-47-000-009-A	Removal of the Door Frame Linings of the Right Forward Emergency Exit Door from Zone 232
TASK 25-23-47-000-010-A	Removal of the Door Frame Linings of the Left/Right Aft Emergency Exit Doors from Zones 251/252
TASK 52-22-00-010-001-A	Opening of the Emergency Exit Doors from the Passenger Compartment
TASK 52-22-00-410-001-A	Closing of the Emergency Exit Doors from the Passenger Compartment
TASK 52-22-00-820-003-A	Adjustment of the Locking Mechanism
TASK 52-22-00-860-003-A	Special Precaution before Maintenance on the Door Damper and Emergency Operation Cylinder
TASK 52-22-00-860-004-A	Special Precaution after Maintenance on the Door Damper and Emergency Operation Cylinder
Latch Fitting ** ON A/C NOT FOR ALL
Latch Fitting ** ON A/C NOT FOR ALL

3. Job Set-up
Subtask 52-22-31-860-053-A ** ON A/C NOT FOR ALL

A. Aircraft Maintenance Configuration
(1) Make sure that the applicable emergency exit door (referred to as door) is opened as required (Ref. AMM TASK 52-22-00-010-001).
(2) Make sure that the special precaution on the door damper and emergency operation cylinder is completed (Ref. AMM TASK 52-22-00-860-003).
(3) Make sure that the ACCESS PLATFORM 4M (13 FT)-ADJUSTABLE is in position below the partly opened door.
(4) Make sure that the applicable door frame lining is removed as required (Ref. AMM TASK 25-23-47-000-004), (Ref. AMM TASK 25-23-47-000-009) or (Ref. AMM TASK 25-23-47-000-010).
(5) Make sure that the insulation blankets are removed as required.

Subtask 52-22-31-860-053-B ** ON A/C NOT FOR ALL

A. Aircraft Maintenance Configuration
(1) Make sure that the applicable emergency exit door (referred to as door) is opened as required (Ref. AMM TASK 52-22-00-010-001).
(2) Make sure that the special precaution on the door damper and emergency operation cylinder is completed (Ref. AMM TASK 52-22-00-860-003).
(3) Make sure that the ACCESS PLATFORM 4M (13 FT)-ADJUSTABLE is in position below the partly opened door.
(4) Make sure that the applicable door frame lining is removed as required (Ref. AMM TASK 25-23-47-000-010).
(5) Make sure that the insulation blankets are removed as required.

Subtask 52-22-31-910-053-A ** ON A/C NOT FOR ALL

B. Preparation for Installation

Latch Fitting ** ON A/C NOT FOR ALL

(1) Remove the old sealant from the door frame and the lock fitting (64).

NOTE: Use a SCRAPER - PLASTIC or SCRAPER - WOODEN.

(2) Clean the component interfaces and the adjacent area.
(3) Do an inspection of the component interfaces and the adjacent area.
(4) Apply a layer of Polysulfide Sealant-General Purpose Fillet - (Material No.06AAB1) to the mating surface of the bolts (62) and the nuts (65).

4. Procedure
Subtask 52-22-31-420-053-A ** ON A/C NOT FOR ALL

A. Installation of the Lock Fitting

Latch Fitting ** ON A/C NOT FOR ALL

(1) Put the lock fitting (64) and the serrated plate (61) in position at the door frame.
(2) Install the bolts (62) with the washers (63) and the nuts (65) and tighten them. nuts.
(3) Apply Polysulfide Sealant-General Purpose Interfay - (Material No.06AAC1) around the latch fitting (74).

5. Close-up
Subtask 52-22-31-820-053-A ** ON A/C NOT FOR ALL

A. Adjust the clearance between the locking hook and the lock fitting (Ref. AMM TASK 52-22-00-820-003).

Subtask 52-22-31-410-053-A ** ON A/C NOT FOR ALL

B. Close Access
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Put the removed insulation blankets on the door frame and attach them with the VELCRO-tapes.
(3) Install the door frame lining as required (Ref. AMM TASK 25-23-47-000-004), (Ref. AMM TASK 25-23-47-000-009) or (Ref. AMM TASK 25-23-47-000-010).
(4) Do the special precaution for the door damper and emergency operation cylinder (Ref. AMM TASK 52-22-00-860-004).
(5) Close the applicable door (Ref. AMM TASK 52-22-00-410-001).
(6) Remove the access platform(s).

Subtask 52-22-31-410-053-B ** ON A/C NOT FOR ALL

B. Close Access
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Put the removed insulation blankets on the door frame and attach them with the VELCRO-tapes.
(3) Install the door frame lining as required (Ref. AMM TASK 25-23-47-000-010).
(4) Do the special precaution for the door damper and emergency operation cylinder (Ref. AMM TASK 52-22-00-860-004).
(5) Close the applicable door (Ref. AMM TASK 52-22-00-410-001).
(6) Remove the access platform(s).

[Rev.10 from 2021] 2026.04.02 06:27:44 UTC