Installation of the Flap Track 1 to 4 Actuators

TASK 27-54-49-400-005-A
Installation of the Flap Track 1 to 4 Actuators

WARNING: MAKE SURE THAT THE FLIGHT CONTROL SAFETY-LOCKS AND THE WARNING NOTICES ARE IN POSITION.

WARNING: MAKE SURE THAT THE GROUND SAFETY-LOCKS ARE IN POSITION ON THE LANDING GEAR. THIS WILL PREVENT UNWANTED MOVEMENT OF THE LANDING GEAR, AND THUS POSSIBLE INJURY TO PERSONS AND DAMAGE TO THE AIRCRAFT AND/OR EQUIPMENT.

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

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.

ZONE: 193
ZONE: 194
ZONE: 570
ZONE: 670
FIN: 6205CM
FIN: 6211CM
FIN: 6221CM
FIN: 6233CM
FIN: 6255CM
FIN: 6261CM
FIN: 6271CM
FIN: 6283CM

1. Reason for the Job
Self explanatory
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	CLAMPS
No specific	AR	SAFETY BARRIER(S)
No specific	AR	WARNING NOTICE(S)
98D27508002000	4	SET-CARRIAGE STOP,FLAP
98D27803000000	1	LOCKING TOOL-FLAP SLAT LEVER,INT. POSITION

B. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
193	UPPER WING FAIRING SLIDE STOWAGE
194	UPPER WING FAIRING SLIDE STOWAGE
570	AFT SECTION OF L WING & TE FIXED STRUCT
670	AFT SECTION OF R WING & TE FIXED STRUCT
193AB, 193BB, 194AB, 194BB, 573AB, 573BB, 573CB, 575AB, 575BB, 575CB, 575DB, 575EB, 575FB, 575GB, 673AB, 673BB, 673CB, 675AB, 675BB, 675CB, 675DB, 675EB, 675FB, 675GB

C. Referenced Information

REFERENCE	DESIGNATION
TASK 24-41-00-861-002-A	Energize the Aircraft Electrical Circuits from the External Power
TASK 24-41-00-861-002-A-01	Energize the Aircraft Electrical Circuits from the APU
TASK 24-41-00-861-002-A-02	Energize the Aircraft Electrical Circuits from Engine 1(2)
TASK 27-50-00-860-801-A	Readout of the Flap Position Pickoff Unit (PPU) Data
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 27-51-18-400-001-A	Installation of the Asymmetry-Position Pick-Off Unit
TASK 27-51-44-820-001-A	Adjustment of the Interconnecting Strut
TASK 27-54-00-220-007-A	Check of the Flap Drive System
TASK 27-54-00-710-001-A	Operational Test of the Flap System
TASK 27-54-49-400-001-A	Installation of the Flap Track 1 Actuator
TASK 27-54-49-400-002-A	Installation of the Flap Track 2 Actuator
TASK 27-54-49-400-003-A	Installation of the Flap Track 3 Actuator
TASK 27-54-49-400-004-A	Installation of the Flap Track 4 Actuator
TASK 27-60-00-866-002-A	Extension-Retraction of the Spoilers for Maintenance
TASK 32-00-00-481-001-A	Installation of the Safety Devices on the Landing Gears
TASK 32-12-00-010-001-A	Open the Main Gear Doors for Access
TASK 32-12-00-410-001-A	Close the Main Gear Doors after Access
TASK 53-35-11-000-001-A	Removal of the Wing-to-Fuselage Fairings
TASK 53-35-11-400-001-A	Installation of the Wing-to-Fuselage Fairings
TASK 57-51-37-000-002-A	Removal of the Access Panels 571AB(671AB), 573AB(673AB), 573BB(673BB), 573CB(673CB), 573EB(673EB)
TASK 57-51-37-000-004-A	Removal of the Access Panels 575AB(675AB), 575BB(675BB), 575CB(675CB), 575DB(675DB), 575EB(675EB), 575FB(675FB), 575GB(675GB), 575HB(675HB)
TASK 57-51-37-400-002-A	Installation of the Access Panels 571AB(671AB), 573AB(673AB), 573BB(673BB), 573CB(673CB), 573EB(673EB)
TASK 57-51-37-400-004-A	Installation of the Access Panels 575AB(675AB), 575BB(675BB), 575CB(675CB), 575DB(675DB), 575EB(675EB), 575FB(675FB), 575GB(675GB), 575HB(675HB)
Flap Actuator Lever to Stop Face Dimensions ** ON A/C NOT FOR ALL
Flap Actuator Lever to Stop Face Dimensions ** ON A/C NOT FOR ALL
Flap Actuator Lever to Stop Face Dimensions ** ON A/C NOT FOR ALL

3. Job Set-up
Subtask 27-54-49-941-077-A

A. Safety Precautions

WARNING: MAKE SURE THAT THE TRAVEL RANGES OF THE FLIGHT CONTROLS SURFACES ARE CLEAR. MOVEMENT OF FLIGHT CONTROLS CAN CAUSE INJURY TO PERSONS AND/OR DAMAGE TO EQUIPMENT.

(1) Make sure that the SAFETY BARRIER(S) are in position.
(2) Make sure that the WARNING NOTICE(S) are in position to tell persons not to operate the flaps.
(3) Make sure that the WARNING NOTICE(S) is in position to tell persons not to operate the landing gear doors.
(4) Make sure that the ground safety locks are installed on the landing gear (Ref. AMM TASK 32-00-00-481-001).

Subtask 27-54-49-865-069-A

B. Make sure that this(these) circuit breaker(s) is(are) open, safetied and tagged:

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C NOT FOR ALL
49VU	FLIGHT CONTROLS/FLP/CTL AND MONG/SYS1	6CV	B07
** ON A/C NOT FOR ALL
49VU	FLIGHT CONTROLS/FLP/CTL AND MONG/SYS1	6CV	B02
** ON A/C ALL
121VU	FLIGHT CONTROLS/FLP/CTL AND/MONG/SYS2	8CV	Q21

Subtask 27-54-49-860-065-A

C. Aircraft Maintenance Configuration
(1) Make sure that the flaps are in position 3 (Ref. AMM TASK 27-50-00-866-008).
(2) Make sure the 98D27803000000 LOCKING TOOL-FLAP SLAT LEVER,INT. POSITION is on the flap/slat control lever in the cockpit.
(3) Make sure that No. 1 thru No. 5 spoilers are fully extended (Ref. AMM TASK 27-60-00-866-002).
(4) Make sure that the 98D27604000000 COLLAR-SAFETY, SPOILER or the 98D27604004000 COLLAR SAFETY SPOILER is on the piston rod of each servo-control.
(5) Make sure that the applicable MLG door is open (Ref. AMM TASK 32-12-00-010-001).
(6) Make sure that the 460005835 SLEEVE - GROUND LOCK is on the applicable MLG door actuator.
(7) Make sure that the ACCESS PLATFORM 3M (10 FT)- ADJUSTABLE is in position below the applicable access panels.
(8) Make sure that the applicable access panels are removed:
(a) For the LH wing:

193AB and 193BB (Ref. AMM TASK 53-35-11-000-001)
573AB 573BB and 573CB (Ref. AMM TASK 57-51-37-000-002)
575AB 575BB 575CB 575DB 575EB 575FB and 575GB (Ref. AMM TASK 57-51-37-000-004).

(b) For the RH wing:

194AB and 194BB (Ref. AMM TASK 53-35-11-000-001)
673AB 673BB and 673CB (Ref. AMM TASK 57-51-37-000-002)
675AB 675BB 675CB 675DB 675EB 675FB and 675GB (Ref. AMM TASK 57-51-37-000-004).

(9) Make sure that the flap trailing edges are on the supports.
(10) Make sure that the 98D27508002000 SET-CARRIAGE STOP,FLAP or the CLAMPS hold the carriages in position.

4. Procedure
Subtask 27-54-49-420-070-A

CAUTION: DO A CHECK OF THE FLAP DRIVE SYSTEM AND/OR THE INTERCONNECTING STRUT AFTER YOU INSTALL A FLAP ROTARY ACTUATOR. INCORRECT ALIGNMENT CAN CAUSE A FLAP TO BECOME LOCKED.

A. Installation of the Flap Track 1 to 4 Actuators

Flap Actuator Lever to Stop Face Dimensions ** ON A/C NOT FOR ALL

(1) Measure dimension A between the actuator lever and its stop face. Make sure that dimension A is +/- 0.5 mm (0.0197 in.) of the recorded dimension.
(a) If dimension A is incorrect, remove the 98D27508002000 SET-CARRIAGE STOP,FLAP or the CLAMPS.
(b) Pull down and hold the actuator lever to remove the backlash in the internal splines of the lever.
(c) Move the flap manually to get the correct dimension A.
(d) Install the 98D27508002000 SET-CARRIAGE STOP,FLAP or the CLAMPS to hold the carriages in position.
(2) Install the flap track 1 thru 4 actuators in sequence (Ref. AMM TASK 27-54-49-400-001), (Ref. AMM TASK 27-54-49-400-002), (Ref. AMM TASK 27-54-49-400-003) and (Ref. AMM TASK 27-54-49-400-004).
(3) Install the Asymmetry Position Pick-Off Unit (APPU) on the flap track 4 actuator (Ref. AMM TASK 27-51-18-400-001).

Subtask 27-54-49-080-056-A

B. Removal of Support Equipment
(1) Remove the 98D27508002000 SET-CARRIAGE STOP,FLAP or the CLAMPS that hold the carriages in position.
(2) Remove the supports from the flap trailing edges.

Subtask 27-54-49-740-069-B

C. Check of the Flap Drive System and/or Interconnecting Strut
(1) Do a check of the Flap Drive System (Ref. AMM TASK 27-54-00-220-007).
(2) Do the adjustment of the interconnecting strut (Ref. AMM TASK 27-51-44-820-001).

Subtask 27-54-49-740-083-A

D. Check of the PPU Data
(1) Energize the aircraft electrical circuits (Ref. AMM TASK 24-41-00-861-002).
(2) Do the readout and check of the PPU data (Ref. AMM TASK 27-50-00-860-801).

NOTE: The flaps can stay in position 1.

(3) If the PPU data are not in the specified limits, do these steps:
(a) Disconnect the APPU and adjust the APPU input shaft.
(b) Do step (3)(a) again until the PPU data are in the specified limits.

Subtask 27-54-49-860-066-A

E. Aircraft Maintenance Configuration

WARNING: MAKE SURE THAT THE TRAVEL RANGES OF THE FLIGHT CONTROLS SURFACES ARE CLEAR. MOVEMENT OF FLIGHT CONTROLS CAN CAUSE INJURY TO PERSONS AND/OR DAMAGE TO EQUIPMENT.

(1) Make sure that the work area is clean and clear of tools and other items.
(2) Remove the 98D27604000000 COLLAR-SAFETY, SPOILER or 98D27604004000 COLLAR SAFETY SPOILER from the piston rod of each servo-control.
(3) Retract the No. 1 to No. 5 spoilers (Ref. AMM TASK 27-60-00-866-002).
(4) Make sure that the applicable servo-control is in the 'O' (operation) position.
(5) Remove the 98D27803000000 LOCKING TOOL-FLAP SLAT LEVER,INT. POSITION from the flap/slat control lever in the cockpit.

Subtask 27-54-49-865-070-A

F. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s):

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C NOT FOR ALL
49VU	FLIGHT CONTROLS/FLP/CTL AND MONG/SYS1	6CV	B07
** ON A/C NOT FOR ALL
49VU	FLIGHT CONTROLS/FLP/CTL AND MONG/SYS1	6CV	B02
** ON A/C ALL
121VU	FLIGHT CONTROLS/FLP/CTL AND/MONG/SYS2	8CV	Q21

Subtask 27-54-49-710-054-A

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

5. Close-up
Subtask 27-54-49-410-062-A

A. Close Access
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Install the applicable access panels:
(a) For the LH wing, install:

(b) For the RH wing, install:

(3) Close the applicable MLG door (Ref. AMM TASK 32-12-00-410-001).

Subtask 27-54-49-942-059-A

B. Removal of Equipment
(1) Remove the safety barriers.
(2) Remove the access platform(s).
(3) Remove the WARNING NOTICE(S).
(4) Remove the ground support and maintenance equipment, the special and standard tools and all other items.

[Rev.10 from 2021] 2026.04.01 04:27:31 UTC