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 TASK 28-13-42-000-001
 Removal of the Vapor Seal
 NOTE : You must take care when you work with the vapor seal. Prevent distortion
____ of the metal attach frames and fittings. Make sure that there are no tears or scratches on the vapor seal-membrane.
 1. Reason for the Job
__________________
 Self Explanatory
 2. Job Set-up Information
______________________
 A. Referenced Information
 -------------------------------------------------------------------------------
REFERENCE DESIGNATION
 -------------------------------------------------------------------------------
21-51-41-000-001 Removal of the Ozone Filter (Converter) 100HM (101HM) 21-51-51-000-001 Removal of the Pack Flow-Control Valve 21-51-51-000-002 Removal of the Air Duct upstream of the Flow Control
 Valve 21-52-41-000-001 Removal of the Air Conditioning Pack 10HM (11HM) 24-41-00-862-002 De-energize the Aircraft Electrical Circuits Supplied
 from the External Power 28-13-42-300-001 Center Tank Vapor Seal Membrane Repair 36-12-41-000-001 Removal of a Bleed-Air Duct 36-22-18-000-001 Removal of the Fuselage Overheat Sensing-Elements
 (Loop A and B)
 28-13-42-991-004 Fig. 401
 28-13-42-991-006 Fig. 402

 **ON A/C 001-002,
 28-13-42-991-001 Fig. 403
R **ON A/C 003-049, 051-099, 101-149, 151-199, 201-299, 301-399, 401-499,
 28-13-42-991-001-A Fig. 403A
 1EFF : ALL 1 28-13-42Page 401 1 1 Aug 01/05 1 1 1CES 1 -------------------------------------------------------------------------------

REFERENCE DESIGNATION
 -------------------------------------------------------------------------------
**ON A/C 001-002,
 28-13-42-991-002 Fig. 404 R **ON A/C 003-049, 051-099, 101-149, 151-199, 201-299, 301-399, 401-499,
 28-13-42-991-002-A Fig. 404A
 **ON A/C 001-002,
 28-13-42-991-003 Fig. 405 R **ON A/C 003-049, 051-099, 101-149, 151-199, 201-299, 301-399, 401-499,
 28-13-42-991-003-A Fig. 405A
 **ON A/C ALL
 28-13-42-991-007 Fig. 406
 3. Job Set-up
__________
 Subtask 28-13-42-860-050

 A. De-energize the aircraft electrical circuits (Ref. TASK 24-41-00-862-002).
 **ON A/C 001-049, 101-105, 151-199,
 Subtask 28-13-42-010-051-A
 B. Get Access (Ref. Fig. 401/TASK 28-13-42-991-004, 402/TASK 28-13-42-991-006)
 (1) Remove the air conditioning packs 10HM (11HM) from the aircraft (Ref. TASK 21-52-41-000-001).
 1EFF : ALL 1 28-13-42Page 402 1 1 Aug 01/05 1 1 1CES 1

R R  APU Bleed-Air Ducts Figure 401/TASK 28-13-42-991-004
 1EFF : 1 1 1CES  ALL  1 111 28-13-42 Page 403 Aug 01/00

 

R R  Removal of the Hot Trim Air Duct(s) Figure 402/TASK 28-13-42-991-006 
R 1EFF : 1 1 1CES  ALL  1 111 28-13-42 Page 404 Aug 01/00

 

 (2)
 Remove the pack flow-control valves 8HB (11HB) from the aircraft (Ref. TASK 21-51-51-000-001).

 (3)
 Remove the ozone filter 100HM (101HM) (Ref. TASK 21-51-41-000-001).

 (4)
 Removal of the hot trim-air duct

 (a)
 Remove the nut (117), the washer (118), the bolt (101) and the bonding strap (119) from the duct (100).

 (b)
 Remove the nut (110), the washer (111), the bolt (104) and the bonding strap (112) from the duct (100).

 (c)
 Remove the nut (106), the washer (105) and the bolt (109) from the clamp (108).

 (d)
 Remove clamp (108).

 (e)
 Remove the clamp (102) from the duct (100).

 (f)
 Remove the clamp (122) and the insulation half shells (121) from the bracket (120).

 (g)
 Remove the nuts (116), the washers (117) and the bolts (113).

 (h)
 Disconnect the support rods (114) from the duct (100).

 (i)
 Remove the duct (100).

 (j)
 Remove and discard the preformed packings (103), (203) and the O-rings (107).

 

 (5)
 Remove the overheat detection loops A and B from the heat shields and from the APU bleed-air ducts (Ref. TASK 36-22-18-000-001).

 (6)
 Remove the APU bleed-air ducts (123) and (124) (Ref. TASK 36-12-41-000-001).

 (7)
 Disconnection of electrical harness CAUTION : MAKE MATCH MARKS ON ALL THE ELECTRICAL WIRES BEFORE YOU

_______ DISCONNECT THEM. INCORRECT CONNECTION OF WIRES WILL CAUSE DAMAGE TO EQUIPMENT.
 (a) Disconnect and remove the electrical harness at the air
 conditioning compartment in Zone 191/192 (FR35 to FR41).
　
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