Detailed Inspection of Pressure Bulkhead at FR46, FWD Face

TASK 53-31-00-210-002-A
Detailed Inspection of Pressure Bulkhead at FR46, FWD Face

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

ZONE: 147
ZONE: 148

1. Reason for the Job
Refer to the MPD TASK: 533101-01
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment

REFERENCE	QTY	DESIGNATION
No specific	1	ACCESS PLATFORM 3M (10 FT)- ADJUSTABLE
No specific	AR	SAFETY CLIP - CIRCUIT BREAKER
No specific	1	WARNING NOTICE(S)

B. Consumable Materials

REFERENCE	DESIGNATION
(Material No.08BBB1)	Non Aqueous Cleaner-- Petroleum Based -
(Material No.14SBA1)	Textile-Lint free Cotton -

C. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
147	MAIN GEAR WELL AND HYDRAULIC COMPARTMENT
148	MAIN GEAR WELL AND HYDRAULIC COMPARTMENT

D. Referenced Information

REFERENCE	DESIGNATION
TASK 29-10-00-864-001-A	Depressurize the Green Hydraulic System
TASK 29-10-00-864-002-A	Depressurize the Yellow Hydraulic System
TASK 29-10-00-864-003-A	Depressurize the Blue Hydraulic System
TASK 32-12-00-010-001-A	Open the Main Gear Doors for Access
TASK 32-12-00-410-001-A	Close the Main Gear Doors after Access
SRM 53311600	(for corrective action)
Pressure Bulkhead FR46

3. Job Set-up
Subtask 53-31-00-010-051-A

A. Get Access
(1) Open the MLG doors (Ref. AMM TASK 32-12-00-010-001).
(2) Depressurize the Green, Blue and Yellow hydraulic systems (Ref. AMM TASK 29-10-00-864-001), (Ref. AMM TASK 29-10-00-864-002), (Ref. AMM TASK 29-10-00-864-003).
(3) Put the WARNING NOTICE(S) in position to tell persons not to operate the landing gear.
(4) Put the ACCESS PLATFORM 3M (10 FT)- ADJUSTABLE in position.

Subtask 53-31-00-110-103-A

B. Preparation of the Inspection Area
(1) Carefully clean the forward face of the pressure bulkhead at FR46 with Non Aqueous Cleaner-- Petroleum Based - (Material No.08BBB1) and a clean lint-free cloth Textile-Lint free Cotton - (Material No.14SBA1) .

Subtask 53-31-00-865-050-A

C. Open, safety and tag this(these) circuit breaker(s):

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C ALL
49VU	L/G/LGCIU/SYS1/NORM	1GA	C09
121VU	HYDRAULIC/LGCIU/SYS2	2GA	Q35
121VU	HYDRAULIC/LGCIU/SYS1/GRND SPLY	52GA	Q34

4. Procedure
Subtask 53-31-00-210-051-A

A. Inspection
(1) Examine the forward face of the pressure bulkhead at FR46 for cracks.

NOTE: If necessary, refer to the ASRM SRM 53311600 for the correct repair procedure.

5. Close-up
Subtask 53-31-00-865-051-A

A. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s):

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C ALL
49VU	L/G/LGCIU/SYS1/NORM	1GA	C09
121VU	HYDRAULIC/LGCIU/SYS2	2GA	Q35
121VU	HYDRAULIC/LGCIU/SYS1/GRND SPLY	52GA	Q34

Subtask 53-31-00-410-051-A

B. Close Access
(1) Close the MLG doors (Ref. AMM TASK 32-12-00-410-001).
(2) Remove the WARNING NOTICE(S).
(3) Remove the access platform(s).
(4) Remove the ground support and maintenance equipment, the special and standard tools and all other items.

[Rev.8 from Aug 2017] 2026.04.02 06:29:08 UTC