Detailed Visual Inspection of Frame Attachments to Pressure Floor from FR42 to FR46, LH/RH

TASK 53-31-00-210-030-A
Detailed Visual Inspection of Frame Attachments to Pressure Floor from FR42 to FR46, LH/RH

ZONE: 145
ZONE: 146

1. Reason for the Job
Refer to the MPD TASK: 533144-01
DETAILED INSPECTION OF FRAME ATTACHMENTS TO PRESSURE FLOOR FROM FR 42 TO FR 46, LH/RH
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment

REFERENCE	QTY	DESIGNATION
No specific	1	FLASHLIGHT

B. Consumable Materials

REFERENCE	DESIGNATION
(Material No.08BAA9)	Non Aqueous Cleaner-General - -
(Material No.14SBA1)	Textile-Lint free Cotton -

C. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
145	PRESS ZONE BETW WING CTR BOX MAIN GEAR
146	PRESS ZONE BETW WING CTR BOX MAIN GEAR

D. Referenced Information

REFERENCE	DESIGNATION
TASK 24-42-00-861-001-A	Energize the Ground Service Network from the External Power
TASK 24-42-00-862-001-A	De-energize the Ground Service Network Supplied from the External Power
TASK 25-23-44-000-001-A	Removal of the Lower Sidewall Panels (Dado Panels)
TASK 25-23-44-400-001-A	Installation of the Lower Sidewall Panels (Dado Panels)
SRM 53311101	(for corrective action)
Frame Attachments to Pressure Floor from FR42 to FR46, LH/RH

3. Job Set-up
Subtask 53-31-00-861-059-B

A. Energize the ground service network
(Ref. AMM TASK 24-42-00-861-001).

Subtask 53-31-00-010-089-B

B. Get Access
(1) Remove the necessary lower sidewall panels between FR42 and FR46 (Ref. AMM TASK 25-23-44-000-001).
(2) Release and carefully pull back the necessary insulation blankets from the sides of the fuselage, below the floor level, between FR42 and FR46.
(3) Attach them temporarily to the fuselage structure above the floor level.
(4) Take a FLASHLIGHT to do the inspection.

Subtask 53-31-00-110-081-B

C. Cleaning Procedure

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

(1) Clean the inspection area with Non Aqueous Cleaner-General - - (Material No.08BAA9) and a Textile-Lint free Cotton - (Material No.14SBA1) , if necessary. Make sure the area is dry before you continue.

4. Procedure
Subtask 53-31-00-210-078-B

A. Detailed Visual Inspection Procedure
(1) Do a detailed visual inspection of the frame attachments to the pressure floor from FR42 to FR46 LH and RH, for cracks.

NOTE: If necessary, refer to the ASRM SRM 53311101 for the correct repair procedure.

5. Close-up
Subtask 53-31-00-410-087-B

A. Close Access
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Release and fold down the insulation blankets, and attach them in their initial positions.
(3) Install the lower sidewall panels between FR42 and FR46 (Ref. AMM TASK 25-23-44-400-001).
(4) Remove the ground support and maintenance equipment, the special and standard tools and all other items.

Subtask 53-31-00-862-059-B

B. De-energize the ground service network
(Ref. AMM TASK 24-42-00-862-001).

[Rev.10 from 2021] 2026.04.02 06:29:05 UTC