Special Detailed Inspection (LFEC) of Internal Structure around Emergency Exit Cutouts, between FR 37 and FR 41, from Stringer 10 to Stringer 23, LH/RH

TASK 53-31-00-220-814-A
Special Detailed Inspection (LFEC) of Internal Structure around Emergency Exit Cutouts, between FR 37 and FR 41, from Stringer 10 to Stringer 23, LH/RH

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

ZONE: 240

1. Reason for the Job
Refer to the MPD TASK: 533129-02
SPECIAL DETAILED INSPECTION (LFEC) OF INTERNAL STRUCTURE AROUND EMERGENCY EXIT CUTOUTS, BETWEEN FR 37 AND FR 41, FROM STRINGER 10 TO STRINGER 23, LH/RH.

NOTE: The effectivity of this task is "ALL". To know if this task is applicable to your aircraft, refer to the MPD task applicability.
The information on weight variant groups is given in the MPD and SRM introductions.

2. Job Set-up Information
A. Consumable Materials

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

B. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
240	MID PASSENGER COMPARTMENT
833, 834, 843, 844

C. Referenced Information

REFERENCE	DESIGNATION
TASK 21-20-00-010-001-A	Removal of the Air-Conditioning Distribution Ducts
TASK 21-20-00-410-001-A	Installation of the Air-Conditioning Distribution Ducts
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)
TASK 25-23-47-000-805-A	Removal of the Door Frame Lining from the Overwing Emergency Exit
TASK 25-23-47-400-805-A	Installation of the Door Frame Lining on the Overwing Emergency Exit
TASK 25-80-00-000-001-A	Removal of the Insulation Blankets
TASK 25-80-00-400-001-A	Installation of the Insulation Blankets
TASK 52-22-00-010-802-A	Opening of the Overwing Emergency-Exit Door from the Passenger Compartment
TASK 52-22-00-410-802-A	Closing of the Overwing Emergency-Exit Door from the Passenger Compartment
SRM 511100
SRM 512200
NTM 533129
SRM 512300	(for corrective action)
SRM 512400	(for corrective action)
Internal Structure around the Emergency Door Cutouts, between FR 37 and FR 41, Left and Right Sides

3. Job Set-up
Subtask 53-31-00-010-142-A ** ON A/C NOT FOR ALL

A. Get Access
(1) Open applicable overwing emergency-exit doors 833 ( 843) and 834 ( 844) (Ref. AMM TASK 52-22-00-010-802).
(2) Remove the frame lining of the overwing emergency-exit doors (Ref. AMM TASK 25-23-47-000-805).
(3) Remove the lower sidewall panels (dado panels) (Ref. AMM TASK 25-23-44-000-001).
(4) Remove the necessary insulation blankets from the inspection area (Ref. AMM TASK 25-80-00-000-001).
(5) Remove the riser duct and the cabin air-outlet assembly from the left and right sides of the cabin, between FR37 and FR41 (Ref. AMM TASK 21-20-00-010-001).

Subtask 53-31-00-110-145-A ** ON A/C NOT FOR ALL

B. Preparation of the Inspection Area
(1) Make sure that the inspection area is sufficiently clean to do a satisfactory inspection of the area.
(2) If not, clean the inspection area with Non Aqueous Cleaner-General - - (Material No.08BAA9) and the Textile-Lint free Cotton - (Material No.14SBA1) .
(3) Remove the sealant and/or paint from the inspection area if this is necessary for the Non-destructive Testing Manual (NTM) task.

4. Procedure
Subtask 53-31-00-220-079-A ** ON A/C NOT FOR ALL

A. Inspection

Internal Structure around the Emergency Door Cutouts, between FR 37 and FR 41, Left and Right Sides ** ON A/C NOT FOR ALL

(1) Do a special detailed inspection (LFEC) for damage and discontinuities on the left and right sides of:

The internal structure around the emergency door cutouts, between FR37 and FR41, from Stringer 10 to Stringer 23. Refer to NTM 533129.

(2) Make a report of the damage after the NTM inspection:
(a) Corrosion damage:

If you find corrosion, refer to the Structural Repair Manual ( SRM 512200) for the corrosion types, inspection, removal and subsequent corrosion protection.

(b) Other damage (scratches, cracks, gouges, dents, creases):

If you find this type of damage, refer to the Structural Repair Manual ( SRM 511100) for the damage types, classification and corrective action.

Subtask 53-31-00-370-071-A ** ON A/C NOT FOR ALL

B. Sealant or Paint Application
(1) If the NTM procedure told to remove the sealant and/or paint from the inspection area, apply sealant ( SRM 512400) or paint ( SRM 512300) on the inspection area.

5. Close-up
Subtask 53-31-00-410-139-A ** ON A/C NOT FOR ALL

A. Close Access
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Install the riser duct and the cabin air-outlet assembly (Ref. AMM TASK 21-20-00-410-001).
(3) Install the applicable insulation blankets (Ref. AMM TASK 25-80-00-400-001).
(4) Install the lower sidewall panels (dado panels) (Ref. AMM TASK 25-23-44-400-001).
(5) Install the frame lining of the overwing emergency-exit doors (Ref. AMM TASK 25-23-47-400-805).
(6) Close applicable overwing emergency-exit doors 833 (843) and 834 (844) (Ref. AMM TASK 52-22-00-410-802).
(7) Remove the ground support and maintenance equipment, the special and standard tools and all other items.

[Rev.10 from 2021] 2026.04.02 06:29:08 UTC