Hand Blend and Polish Damage on the Access Panel Hinge - VRS2935 [IAE]

TASK 71-13-14-300-011-A
Hand Blend and Polish Damage on the Access Panel Hinge - VRS2935

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

1. Reason for the Job
This task gives the procedure to hand blend and polish damage on the access panel hinge.
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment

REFERENCE	QTY	DESIGNATION
No specific	AR	ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE
No specific	AR	WARNING NOTICE(S)

B. Consumable Materials

REFERENCE	DESIGNATION
(Material No.V01-076)	Methyl Ethyl Ketone, Technical grade
(Material No.V05-016)	garnet paper
(Material No.V05-020)	waterproof silicon carbide
(Material No.V05-064)	Waterproof silicon carbide abrasive paper
(Material No.V06-131)	marking pen
(Material No.14SBA1)	Textile-Lint free Cotton -

C. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
FOR [1000EM1] (ENGINE-1)
437AL, 438AR
FOR [1000EM2] (ENGINE-2)
447AL, 448AR

D. Referenced Information

REFERENCE	DESIGNATION
TASK 71-13-00-010-010-A	Opening of the Fan Cowls 437AL(447AL),438AR(448AR)
TASK 71-13-00-410-010-A	Closing of the Fan Cowls 437AL(447AL),438AR(448AR)
TASK 71-13-14-300-012-A	Replace the Hinge on the Oil Filler Access Door - VRS2849
SPM 703807380501

3. Job Set-up
Subtask 71-13-14-941-053-A ** ON A/C NOT FOR ALL

A. Safety Precautions
(1) On the center pedestal, on the ENG panel 115VU:
(a) Put a WARNING NOTICE(S) to tell persons not to start the engine.
(2) Make sure that the engine 1(2) shutdown occurred not less than 5 minutes before you do this procedure.
(3) On the overhead maintenance panel 50VU:
(a) Make sure that the ON legend of the ENG/FADEC GND PWR/1(2) pushbutton switch is off.
(b) Put a WARNING NOTICE(S) to tell persons not to energize the FADEC 1(2).

Subtask 71-13-14-010-053-A ** ON A/C NOT FOR ALL

B. Get Access
(1) Open the fan cowls (Ref. AMM TASK 71-13-00-010-010):
(2) FOR [1000EM1] (ENGINE-1)
437AL 438AR.
(3) FOR [1000EM2] (ENGINE-2)
447AL 448AR.
(4) Put the ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE in position.

4. Procedure
Subtask 71-13-14-350-054-A ** ON A/C NOT FOR ALL

A. Remove the Damage

CAUTION: REMOVE THE MININUM QUANTITY OF MATERIAL NECESSARY TO MAKE THE SHAPE OF THE PART SMOOTH.IF YOU REMOVE TOO MUCH MATERIAL YOU WILL HAVE TO DO A DIFFERENT REPAIR.

(1) Use the waterproof silicon carbide (Material No.V05-020) and Waterproof silicon carbide abrasive paper (Material No.V05-064) to carefully remove the highpoints and the burrs. Make sure that the bottom of the damage has a smooth contour.
(2) Remove material to a depth sufficient only to remove all traces of damage, but not more than 0.010 in. (0.25 mm) from the original undamaged surface.
(3) Use the garnet paper (Material No.V05-016) to polish out the scores.

Subtask 71-13-14-110-056-A ** ON A/C NOT FOR ALL

B. Clean the Repair Area

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

(1) Use a clean Textile-Lint free Cotton - (Material No.14SBA1) made moist with V01-076Methyl Ethyl Ketone, Technical grade to clean the repair area and to remove all unwanted material.
(2) Dry the area with a clean Textile-Lint free Cotton - (Material No.14SBA1) before the cleaning fluid dries.

Subtask 71-13-14-220-052-A ** ON A/C NOT FOR ALL

C. Examine the Repair Area
(1) Measure the dimensions of the repair area. Make sure that the repair is not more than 0.010 in. (0.25 mm) from the original undamaged surface.
(2) If a dimension is more than that given in step (1), repair it (Ref. AMM TASK 71-13-14-300-012).

Subtask 71-13-14-370-050-A ** ON A/C NOT FOR ALL

D. Apply the surface protection to the repair area SPM 703807380501.

Subtask 71-13-14-350-055-A ** ON A/C NOT FOR ALL

E. Write the Repair Scheme on the Panel
(1) Use a marking pen (Material No.V06-131) to write VRS2935 on the panel.
(2) Make sure that the pen color can be seen on the panel.

5. Close-up
Subtask 71-13-14-410-053-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) Close the fan cowls (Ref. AMM TASK 71-13-00-410-010):
(3) FOR [1000EM1] (ENGINE-1)
437AL 438AR.
(4) FOR [1000EM2] (ENGINE-2)
447AL 448AR.
(5) Remove the access platform(s).
(6) Remove the WARNING NOTICE(S).

[Rev.10 from 2021] 2026.04.01 02:29:47 UTC