(2)
 For the flap track beams 3 and 4:

 (a)
 Make sure that the access platform is below the applicable outboard flap at zone 533(633).

 (b)
 Make sure that the applicable outboard flap is removed (Ref. TASK 27-54-62-000-001).

 (3)
 Make sure that the access platform is below the applicable wing trailing edge at flap tracks 2, 3 and 4, zones 531(631), 532(632) and 533(633).

 (4)
 Make sure that the applicable fixed fairing access panels are removed (Ref. TASK 57-55-11-000-001):

 -
for flap track 2, 531AB, 531BB, 631AB, 631BB

 -
for flap track 3, 532AB, 532BB, 632AB, 632BB

 -
for flap track 4, 533AB, 533BB, 633AB, 633BB.

 (5)
 Make sure that the applicable flap track beams are removed:

 -
for the flap track beam 2 (Ref. TASK 57-51-33-000-002)

 -
for the flap track beam 3 (Ref. TASK 57-51-33-000-003)

 -
for the flap track beam 4 (Ref. TASK 57-51-33-000-004).

R  **ON A/C 301-399, 
R  Subtask 57-26-15-860-050-A 
R  C. Aircraft Maintenance Configuration 
R  (1) For the flap track beam 2: 
R  (a) Make sure that the access platform is below the applicable 
R  inboard flap at zone 531(631). 
R  (b) Make sure that the applicable inboard flap is removed (Ref. TASK 
R  27-54-61-000-003). 
R  (2) For the flap track beams 3 and 4: 
R  (a) Make sure that the access platform is below the applicable 
R  outboard flap at zone 533(633). 
R  (b) Make sure that the applicable outboard flap is removed (Ref. TASK 
R  27-54-62-000-002). 
R  (3) Make sure that the access platform is below the applicable wing 
R  trailing edge at flap tracks 2, 3 and 4, zones 531(631), 532(632) and 
R  533(633). 
R  (4) Make sure that the applicable fixed fairing access panels are removed 
R  (Ref. TASK 57-55-11-000-004): 
R  - for flap track 2, 531AB, 531BB, 631AB, 631BB 
R  - for flap track 3, 532AB, 532BB, 632AB, 632BB 
R  - for flap track 4, 533AB, 533BB, 633AB, 633BB. 
R  (5) Make sure that the applicable flap track beams are removed: 
R  - for the flap track beam 2 (Ref. TASK 57-51-33-000-002) 
R  - for the flap track beam 3 (Ref. TASK 57-51-33-000-003) 
R  - for the flap track beam 4 (Ref. TASK 57-51-33-000-004).

 **ON A/C ALL
 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 57-26-15-420-051
 A. Preparation for Installation
 (1)
 Clean the component interfaces and the adjacent areas with a MISCELLANEOUS (Material No. 19-003) made moist with CLEANING AGENTS (Material No. 11-026).

 (2)
 Do an inspection of the component interface and/or the adjacent area.

 (3)
 Make sure that the parts retained from the removed component are clean and in the correct condition.

R **ON A/C 001-049, 051-099, 101-149, 151-199, 201-299, 401-499,
 Subtask 57-26-15-420-050
 B. Installation of the Flap Attachment-Bracket Bearing
 (1)
 Apply SEALANTS (Material No. 09-018) or SEALANTS (Material No. 09-019) to the mating surfaces of the sleeve bearing (3), the spherical bearing (4) and the flap structure (2).

 (2)
 Make sure that the SEALANTS (Material No. 09-018) or SEALANTS (Material No. 09-019) does not touch the internal surfaces of the spherical bearing (4).

 (3)
 Carefully install the sleeve bearing (3) in the flap stucture (2).

 (4)
 Make sure that the sleeve bearing (3) is fully engaged in the flap structure (2).

 (5)
 Make sure that the SEALANTS (Material No. 09-018) or SEALANTS
 (Material No. 09-019) does not touch the threads of the outer ring

 (1) and the sleeve bearing (3).

 (6)
 Install the outer ring (1) on the sleeve bearing (3), using the
 applicable tool as follows:

 -
for the flap track beams 2 and 3, use the R/I TOOL FLAP BEARING (98D57004033000).
　
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