Subtask 57-27-11-010-061
 D. Get Access
 (1)
 Make sure the adjustable access platform is in position below the applicable access panel, zone 540(640).

 (2)
 Make sure the forward and aft fixed fairings of the flap track 3 have been removed (Ref. TASK 57-55-11-000-001):

 -for the left wing, panels 540FB and 540GB
 -for the right wing, panels 640FB and 640BG.
 **ON A/C 301-399,

 Subtask 57-27-11-010-061-A
 D. Get Access
 (1)
 Make sure the adjustable access platform is in position below the applicable access panel, zone 540(640).

 (2)
 Make sure the forward and aft fixed fairings of the flap track 3 have been removed (Ref. TASK 57-55-11-000-004):

 -for the left wing, panels 540FB and 540GB
 -for the right wing, panels 640FB and 640BG.
 **ON A/C ALL

 4. Procedure
_________
 **ON A/C 001-049, 051-061, 101-105, 151-151, 201-203,

 (Ref. Fig. 401/TASK 57-27-11-991-001) R **ON A/C 062-099, 106-149, 152-199, 204-299, 401-499,
 (Ref. Fig. 401A/TASK 57-27-11-991-001-A)

 **ON A/C 301-399,
 (Ref. Fig. 401B/TASK 57-27-11-991-001-B) 
R  **ON A/C 001-049, 051-099, 101-149, 151-199, 201-299, 401-499,
 (Ref. Fig. 402/TASK 57-27-11-991-010)
 **ON A/C 301-399,
 (Ref. Fig. 402A/TASK 57-27-11-991-010-A)
 **ON A/C 001-049, 051-061, 101-105, 151-151, 201-203, 
R  Subtask 57-27-11-560-050 
R  A. Preparation of a Component for Installation 
R  (1) We recommend that the sealing ring (2) or (3) is replaced each time 
R  the panel is installed. If a new seal is not used, you must make sure 
R  that the sealing ring (2) or (3) is: 
R  - assembled correctly 
R  - bonded on the access panel 
R  - not twisted or damaged. 
R  (2) Examine the knitted gasket (4) or (5), for damage. If necessary, 
R  remove and discard it. 
R  (3) Use a MISCELLANEOUS (Material No. 19-003), made moist with CLEANING 
R  AGENTS (Material No. 11-026) to clean: 
R  - the groove in the access panel (1) for the sealing ring (2) or (3) 
R  if a new seal is being installed 
R  - the clamp ring (6) 
R  - the interfaces of the access panel (1) and the wing skin. 
R  (4) Examine for damage the interfaces of: 
R  - the access panel (1) 
R  - the clamp ring (6) 
R  - the wing skin 
R  - the bolt holes in the clamp ring (6).

 Access Panels - Rib 2 to Rib 13 Bolt Removal/Tightening Sequence
 Figure 402/TASK 57-27-11-991-010

R 1EFF : 001-049, 051-099, 101-149, 151-199, 1 57-27-11Page 417 1201-299, 401-499, 1Aug 01/05 1 1 1CES 1R Access Panels - Rib 2 to Rib 13 Bolt Removal/Tightening Sequence R Figure 402A/TASK 57-27-11-991-010-A

R 1EFF : 301-399, 1 57-27-11Page 418 1 1 May 01/04 1 1 1CES 1

R  Subtask 57-27-11-420-050 
R  B. Preparation for Installation 
R  WARNING : OBEY THE MANUFACTURER'S INSTRUCTIONS WHEN YOU USE THIS/THESE_______ 
R  MATERIAL/S. 
R  USE PROTECTIVE CLOTHING, RUBBER GLOVES AND GOGGLES. 
R  CAUTION : YOU MUST FOLLOW THESE STEPS OF THE PROCEDURE ACCURATELY. THIS_______ 
R  WILL PREVENT DAMAGE TO THE PARTS. 
R  (1) If a new sealing ring (2) or (3) is to be installed, apply a thin 
R  layer of SEALANTS (Material No. 09-007) to the groove in the access 
R  panel (1). 
R  (2) While the sealant is wet, put the applicable sealing ring (2) or (3) 
R  (flat edge down) into the groove in the access panel (1): 
R  - for the panels 540AB, 540BB, 540CB, (640AB, 640BB, 640CB) use 
R  sealing ring (2) 
R  - for the panels 540DB, 540EB, 540FB, 540GB, (640DB, 640EB, 640FB, 
R  640GB) use sealing ring (3). 
R  NOTE : Let the sealant dry for a minimum of 15 minutes before you____ 
R  install the panel. 
R  (3) Make sure the applicable knitted gasket (4) or (5) is sufficiently 
R  soaked with COMMON GREASE (Material No. 04-013): 
R  - for the panels 540AB, 540BB, 540CB, (640AB, 640BB, 640CB) use the 
R  knitted gasket (4) 
R  - for the panels 540DB, 540EB, 540FB, 540GB, (640DB, 640EB, 640FB, 
R  640GB) use the knitted gasket (5). 
　
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