Special Detailed Inspection (HFEC) of the Lower Flanges of FR 72 and FR 74, between STGR 10 LH and STGR 10 RH

TASK 53-51-00-220-802-A
Special Detailed Inspection (HFEC) of the Lower Flanges of FR 72 and FR 74, between STGR 10 LH and STGR 10 RH

ZONE: 310

1. Reason for the Job
Refer to the MPD TASK: 535163-01
SPECIAL DETAILED INSPECTION (HFEC) OF LOWER FLANGES OF FR 72 AND FR 74, BETWEEN STRINGER 10 LH AND STRINGER 10 RH.

NOTE: The effectivity of this task is ALL. To know, if this task is applicable for your aircraft, refer to the MPD task applicability and the weight variant data given in the SRM introduction.

2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment

REFERENCE	QTY	DESIGNATION
No specific	1	ACCESS PLATFORM 3M (10 FT)
No specific	1	ACCESS PLATFORM 4M (13 FT)-ADJUSTABLE
No specific	1	CLOTH-EMERY (GRADE 280)

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
310	FUSLG TAIL SECTION AFT OF AFT PRESS BHD
312AR, 314AR

D. Referenced Information

REFERENCE	DESIGNATION
TASK 52-41-23-010-801-A	Opening of Access Door 314AR
TASK 52-41-23-410-801-A	Closing of Access Door 314AR
SRM 511100
SRM 512200
SRM 517300
SRM 517400
NTM 535163
Inspection Areas of the Lower Flanges of FR72 and FR74, between STGR10 LH and STGR10 RH

3. Job Set-up
Subtask 53-51-00-010-077-A

A. Get Access

WARNING: PUT THE SAFETY DEVICES AND THE WARNING NOTICES IN POSITION BEFORE YOU START A TASK ON OR NEAR:

THE FLIGHT CONTROLS
THE FLIGHT CONTROL SURFACES
THE LANDING GEAR AND THE RELATED DOORS
COMPONENTS THAT MOVE.

MOVEMENT OF COMPONENTS CAN KILL OR CAUSE INJURY TO PERSONS AND/OR CAN CAUSE DAMAGE TO THE EQUIPMENT.

(1) Put the ACCESS PLATFORM 3M (10 FT) in position below access door 312AR.
(2) Put the ACCESS PLATFORM 4M (13 FT)-ADJUSTABLE in position below access door 314AR.
(3) Open access door 312AR.
(4) Open access door 314AR (Ref. AMM TASK 52-41-23-010-801).

Subtask 53-51-00-110-081-A

B. Preparation of the Inspection Area
(1) Make sure that the inspection area is sufficiently clean to do a satisfactory inspection of the area.

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

(2) If necessary, clean the inspection area with the Non Aqueous Cleaner-General - - (Material No.08BAA9) and a Textile-Lint free Cotton - (Material No.14SBA1) .
(3) Make sure that the inspection area is dry before you continue.
(4) Do a visual check of the inspection area for damage.
(5) If you find damage:
(a) Refer to the ASRM SRM 511100 for the classification of the damage
(b) If you find corrosion damage:

Refer to the ASRM SRM 512200 for the general corrosion data.
Refer to the ASRM SRM 517400 for the repair of the corroded areas.

(6) If necessary, make the surface of the inspection area smooth with CLOTH-EMERY (GRADE 280).

4. Procedure
Subtask 53-51-00-220-050-A

A. Special Detailed Inspection
(1) Do the special detailed inspection (HFEC) of the lower flanges of FR72 and FR74 between STGR10 LH and STGR10 RH, NTM 535163. Look for cracks.
(2) Make a report of damage during the inspection procedure.
(a) Refer to the SRM 511100 for the classification of the damage.
(b) If you find corrosion damage:

Refer to the SRM 512200 for the general corrosion data
Refer to the SRM 517400 for the repair of the corroded areas.

Refer to the SRM 517300 for the repair of minor damage.

5. Close-up
Subtask 53-51-00-410-075-A

A. Close Access
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Close access door 314AR (Ref. AMM TASK 52-41-23-410-801).
(3) Close access door 312AR.
(4) Remove the access platform(s).
(5) Remove the ground support and maintenance equipment, the special and standard tools and all other items.

[Rev.10 from 2021] 2026.04.02 06:29:27 UTC