Special Detailed Inspection (MPI) of Outer-Wing Outboard-Flap-Tracks-3 and 4 Flap-Pivot-Bolt-Assembly

TASK 57-53-00-220-007-A
Special Detailed Inspection (MPI) of Outer-Wing Outboard-Flap-Tracks-3 and 4 Flap-Pivot-Bolt-Assembly

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.

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

ZONE: 532
ZONE: 632
ZONE: 533
ZONE: 633

1. Reason for the Job
Refer to the MPD TASK: 575352-01

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	AR	ACCESS PLATFORM 3M (10 FT)- ADJUSTABLE
No specific	AR	SAFETY BARRIER(S)
No specific	AR	SAFETY CLIP - CIRCUIT BREAKER
No specific	AR	WARNING NOTICE(S)
No specific	Torque wrench: range to between 20.0 and 15.0 m.daN (147.49 and 110.62 lbf.ft )
98D27504032000	1	GUIDE-CARRIAGE PIN
98D27504083000	1	EXTRACTOR - PIN TRACKS 2 AND 3
98D27504084000	1	EXTRACTOR - PIN, TRACK 4
98D27803000000	1	LOCKING TOOL-FLAP SLAT LEVER,INT. POSITION

B. Consumable Materials

REFERENCE	DESIGNATION
(Material No.03GBB1)	Synthetic Oil base Grease-General Purpose Clay Thickened -
(Material No.03GBC1)	Synthetic Oil base Grease-General Purpose Lithium Thickened Low Temp. -
(Material No.08BAA9)	Non Aqueous Cleaner-General - -
(Material No.14SBA1)	Textile-Lint free Cotton -

C. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
532	FLAP TRACK 3 FAIRING
533	FLAP TRACK 4 FAIRING
632	FLAP TRACK 3 FAIRING
633	FLAP TRACK 4 FAIRING

D. Expendable Parts

FIG.ITEM	DESIGNATION	IPC-CSN
1	cotter pin	AIPC 27-54-46-04-035
3	crushable spacer	AIPC 27-54-46-06-080
1	cotter pin	AIPC 27-54-46-24-010
3	crushable spacer	AIPC 27-54-46-26-030

E. Referenced Information

REFERENCE	DESIGNATION
TASK 27-50-00-866-008-A	Extension of the Flaps on the Ground
TASK 27-50-00-866-008-A-01	Extension of the Flaps/Slats on the Ground
TASK 27-50-00-866-009-A	Retraction of the Flaps on the Ground
TASK 27-50-00-866-009-A-01	Retraction of the Flaps/Slats on the Ground
TASK 27-54-00-710-001-A	Operational Test of the Flap System
TASK 57-55-11-010-002-A	To Lower the Flap Track No. 3 & No. 4 Movable Fairings for Access
TASK 57-55-11-410-002-A	To Lift the Flap Track No. 3 & No. 4 Movable Fairings after Access
NTM 575352
Outboard Flap Tracks 3 and 4 - Carriage Bolts ** ON A/C NOT FOR ALL
Outboard Flap Tracks 3 and 4 - Carriage Bolts ** ON A/C NOT FOR ALL
Flap Tracks 3 and 4 - Carriage Forgings

3. Job Set-up
Subtask 57-53-00-941-064-A

A. Safety Precautions
(1) Put WARNING NOTICE(S) in the cockpit to tell persons not to operate the flaps or slats.
(2) As necessary, use the applicable SAFETY BARRIERS, specified by the operator's instructions and your local regulations.

Subtask 57-53-00-860-096-A

B. Aircraft Maintenance Configuration
(1) Fully extend the flaps (Ref. AMM TASK 27-50-00-866-008).
(2) Make sure that the locking tool is installed on the flap/slat control lever. If necessary, install the 98D27803000000 LOCKING TOOL-FLAP SLAT LEVER,INT. POSITION.
(3) Lower the flap track 3 and 4 movable fairings (Ref. AMM TASK 57-55-11-010-002).
(4) Put the ACCESS PLATFORM 3M (10 FT)- ADJUSTABLE below the wing trailing edge at the applicable flap track 3 or 4, zone 532(632) or 533(633).

Subtask 57-53-00-865-077-A

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

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C ALL
49VU	FLIGHT CONTROLS/FLP/CTL AND MONG/SYS1	6CV	B07
121VU	FLIGHT CONTROLS/FLP/CTL AND/MONG/SYS2	8CV	Q21

4. Procedure

CAUTION: BE CAREFUL WHEN YOU DO MAINTENANCE TASKS ON THE WING TRAILING EDGE:

DO NOT CAUSE DAMAGE TO THE ELECTRICAL CABLE RACEWAYS.
DO NOT CAUSE DAMAGE TO THE ELECTRICAL CABLE INSTALLATIONS.
MAKE SURE THAT THE ELECTRICAL CABLES ARE INSTALLED CORRECTLY. INCORRECT INSTALLATION CAN CAUSE DAMAGE.

Subtask 57-53-00-020-050-B

A. Preparation for Inspection

WARNING: USE PROTECTIVE GOGGLES WHEN YOU REMOVE OR INSTALL A COTTER PIN. EACH TIME YOU REMOVE A COTTER PIN DURING THE TASK, DISCARD IT IMMEDIATELY. A LOOSE COTTER PIN CAN CUT YOU OR MAKE YOU BLIND.

(1) Remove these items:

The cotter pin (1) and discard
The nut (2)
The crushable spacer (3) and discard
The nut (4) and the washer (5)
The locking plate (6)
The splined bush (7).

(2) Install the:

98D27504083000 EXTRACTOR - PIN TRACKS 2 AND 3 at the flap track 3 onto the carriage bolt (8)
98D27504084000 EXTRACTOR - PIN, TRACK 4 at the flap track 4 onto the carriage bolt (8).
Flap Tracks 3 and 4 - Carriage Forgings

NOTE: Make sure that you screw the extractor pin fully onto the threads of the carriage bolt (8). This will hold the locking ring in position and let it be compressed by the splined bush (7) and the flap spherical bearing.

(3) Remove the carriage bolt (8).

NOTE: If necessary, carefully lift the flap with the hoist and sling sufficiently to release the weight off the carriage bolt (8).

(4) Remove:

the 98D27504083000 EXTRACTOR - PIN TRACKS 2 AND 3 at the flap track 3 from the carriage bolt (8)
the 98D27504084000 EXTRACTOR - PIN, TRACK 4 at the flap track 4 from the carriage bolt (8).

(5) Carefully remove the rivet (9) and remove the inner bolt (11) from the outer bolt (10).
(6) Use a Textile-Lint free Cotton - (Material No.14SBA1) , made moist with Non Aqueous Cleaner-General - - (Material No.08BAA9) to clean the inner bolt (11) and the outer bolt (10).

Subtask 57-53-00-280-050-B

B. Inspection
(1) Do a special detailed inspection of the carriage bolt (8) NTM 575352.

NOTE: If necessary, replace the carriage bolt (8).

Subtask 57-53-00-420-052-B ** ON A/C NOT FOR ALL

C. Connection of the Outboard Flap
(1) Make sure that the parts retained from the removed component are clean and in the correct condition.
(2) Assemble the carriage bolt (8) as follows:
(a) Apply a layer of Synthetic Oil base Grease-General Purpose Clay Thickened - (Material No.03GBB1) or Synthetic Oil base Grease-General Purpose Lithium Thickened Low Temp. - (Material No.03GBC1) to the inner bolt (11).
(b) Install the inner bolt (11) in the outer bolt (10).
(c) Attach the inner bolt (11) to the outer bolt (10) with a new rivet (9) (NSA541448000).
(3) Apply a thin layer of Synthetic Oil base Grease-General Purpose Clay Thickened - (Material No.03GBB1) or Synthetic Oil base Grease-General Purpose Lithium Thickened Low Temp. - (Material No.03GBC1) to the splined bush (7) and to the carriage bolt (8).
(4) Install the carriage bolt (8) with the 98D27504032000 GUIDE-CARRIAGE PIN.
(5) Remove the 98D27504032000 GUIDE-CARRIAGE PIN from the bolt (8).
(6) Install the splined bush (7) and make sure that it is correctly engaged with the flap spherical bearing.
(7) Install the locking plate (6).
(8) Install the new AIPC 27-54-46-06-080 crushable spacer (3) and the nut (2).
(9) TORQUE the nut (2) to between 20.0 and 15.0 m.daN (147.49 and 110.62 lbf.ft )

WARNING: USE PROTECTIVE GOGGLES WHEN YOU REMOVE OR INSTALL A COTTER PIN. EACH TIME YOU REMOVE A COTTER PIN DURING THE TASK, DISCARD IT IMMEDIATELY. A LOOSE COTTER PIN CAN CUT YOU OR MAKE YOU BLIND.

(10) Safety the nut (2) with a new AIPC 27-54-46-04-035 cotter pin (1).
(11) Install the washer (5) and the nut (4).

Subtask 57-53-00-420-052-C ** ON A/C NOT FOR ALL

C. Connection of the Outboard Flap
(1) Make sure that the parts retained from the removed component are clean and in the correct condition.
(2) Assemble the carriage bolt (8) as follows:
(a) Apply a layer of Synthetic Oil base Grease-General Purpose Clay Thickened - (Material No.03GBB1) or Synthetic Oil base Grease-General Purpose Lithium Thickened Low Temp. - (Material No.03GBC1) to the inner bolt (11).
(b) Install the inner bolt (11) in the outer bolt (10).
(c) Attach the inner bolt (11) to the outer bolt (10) with a new rivet (9) (NSA541440000).
(3) Apply Synthetic Oil base Grease-General Purpose Clay Thickened - (Material No.03GBB1) or Synthetic Oil base Grease-General Purpose Lithium Thickened Low Temp. - (Material No.03GBC1) to the splined bush (7) and to the carriage bolt (8).
(4) Install the carriage bolt (8) with the 98D27504032000 GUIDE-CARRIAGE PIN.
(5) Remove the 98D27504032000 GUIDE-CARRIAGE PIN from the carriage bolt (8).
(6) Install the splined bush (7) and make sure that it is correctly engaged with the flap spherical bearing.
(7) Install the locking plate (6).
(8) Install the new AIPC 27-54-46-26-030 crushable spacer (3) and the nut (2).
(9) TORQUE the nut (2) to between 20.0 and 15.0 m.daN (147.49 and 110.62 lbf.ft )

WARNING: USE PROTECTIVE GOGGLES WHEN YOU REMOVE OR INSTALL A COTTER PIN. EACH TIME YOU REMOVE A COTTER PIN DURING THE TASK, DISCARD IT IMMEDIATELY. A LOOSE COTTER PIN CAN CUT YOU OR MAKE YOU BLIND.

(10) Safety the nut (2) with a new AIPC 27-54-46-24-010 cotter pin (1).
(11) Install the washer (5) and the nut (4).

Subtask 57-53-00-420-052-D ** ON A/C NOT FOR ALL

DELETED

Subtask 57-53-00-865-078-A

D. 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	FLIGHT CONTROLS/FLP/CTL AND MONG/SYS1	6CV	B07
121VU	FLIGHT CONTROLS/FLP/CTL AND/MONG/SYS2	8CV	Q21

Subtask 57-53-00-860-097-A

E. Aircraft Maintenance Configuration
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Lift the flap track 3 and 4 movable fairings (Ref. AMM TASK 57-55-11-410-002).
(3) Remove the 98D27803000000 LOCKING TOOL-FLAP SLAT LEVER,INT. POSITION from the flap/slat control lever.
(4) Retract the flaps (Ref. AMM TASK 27-50-00-866-009).

Subtask 57-53-00-710-050-A

F. Test
(1) Do an operational test of the flap system (Ref. AMM TASK 27-54-00-710-001).

5. Close-up
Subtask 57-53-00-942-063-A

A. Removal of Equipment
(1) Remove the WARNING NOTICE(S).
(2) Remove the safety barriers.
(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 06:31:24 UTC