Installation of Accessory Compartment Access-Door 312AR

TASK 52-41-16-400-001-A
Installation of Accessory Compartment Access-Door 312AR

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	AR	ACCESS PLATFORM 3M (10 FT)- ADJUSTABLE

B. Consumable Materials

REFERENCE	DESIGNATION
(Material No.06AAA1)	Polysulfide Sealant_General Purpose Brushable -
(Material No.06AEA1)	Polysulfide Sealant-Low Adhesion Brushable -
(Material No.06LCG9)	Non Hardening Jointing Putty-Medium Temp. Area - -
(Material No.12ABE2)	Corrosion Preventive Compound-Water Displacing Oily Film System

C. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
312AR

D. Referenced Information

REFERENCE	DESIGNATION
TASK 20-28-00-912-802-A	Electrical Bonding - General Maintenance Procedure
TASK 51-75-13-916-001-A	Repair to a layer of Moisture-Removing Oil
Accessory Compartment Access Door 312AR

3. Job Set-up
Subtask 52-41-16-860-050-A

A. Aircraft Maintenance Configuration
(1) Make sure that the ACCESS PLATFORM 3M (10 FT)- ADJUSTABLE is in position.
(2) Make sure that access door 312AR is open.

4. Procedure
Subtask 52-41-16-560-050-A

A. Preparation of the Replacement Components
(1) Lock the latch assemblies (7).
(2) Adjust the set screws (8) of the latch assemblies (7) to a dimension of 6.2 mm (0.2441 in.).
(3) Unlock the latch assemblies (7).

NOTE: To get the correct door clearances A and C, you can install a maximum of two shims (3) at each hinge assembly (5).

(4) Apply Polysulfide Sealant_General Purpose Brushable - (Material No.06AAA1) on the mating surface of the shims (3), if installed.
(5) Install the shims (3) as necessary.

Subtask 52-41-16-560-051-A ** ON A/C NOT FOR ALL

B. Preparation of the Replacement Components (for Access Door P/N D52470005020)
(1) Lock the latch assemblies (7).
(2) Adjust the set screws (8) of the latch assemblies (7) to a dimension of 6.2 mm (0.2441 in.).
(3) Unlock the latch assemblies (7).
(4) Install the shims (3) as necessary.

NOTE: To get the correct door clearances A and C, you can install a maximum of two shims (3) at each hinge assembly (5).

Subtask 52-41-16-910-050-A

C. Preparation for Installation
(1) Apply Polysulfide Sealant-Low Adhesion Brushable - (Material No.06AEA1) on the mating surface of the hinge assemblies (5).
(2) Apply Non Hardening Jointing Putty-Medium Temp. Area - - (Material No.06LCG9) on the threads of the screws (4).

Subtask 52-41-16-910-051-A ** ON A/C NOT FOR ALL

D. Preparation for Installation (for Access Door P/N D52470005020)
(1) Apply Non Hardening Jointing Putty-Medium Temp. Area - - (Material No.06LCG9) on the threads of the screws (4).

Subtask 52-41-16-420-050-A

E. Installation of the Access Door
(1) Put the access door (6) in its installation position.
(2) Install the washers (2), the screws (4) and the nuts (1).
(3) Attach the bonding strap (12) with the washers (10), the screw (11) and the nut (9) on the access door (6) (Ref. AMM TASK 20-28-00-912-802).

5. Close-up
Subtask 52-41-16-410-050-A

A. Close Access
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Apply a layer of Corrosion Preventive Compound-Water Displacing Oily Film System (Material No.12ABE2) (Ref. AMM TASK 51-75-13-916-001).
(3) Close the access door (6).
(4) Remove the access platform(s).

[Rev.10 from 2021] 2026.04.02 06:28:15 UTC