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
**ON A/C 001-002,
28-13-42-991-002 Fig. 404
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REFERENCE DESIGNATION
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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
3. Job Set-up
__________
**ON A/C 001-049, 101-105, 151-199,
Subtask 28-13-42-860-051-A
A. Aircraft Maintenance Configuration (Ref. Fig. 401/TASK 28-13-42-991-004, 402/TASK 28-13-42-991-006)
(1)
Make sure that the aircraft electrical circuits are de-energized (Ref. TASK 24-41-00-862-002).
(2)
Make sure that the air conditioning packs 10HM (11HM) are removed (Ref. TASK 21-52-41-000-001).
(3)
Make sure that the pack flow-control valves 8HB (11HB) are removed (Ref. TASK 21-51-51-000-001).
(4)
Make sure that the ozone filter 100HM (101HM) is removed (Ref. TASK 21-51-41-000-001).
(5)
Make sure that the hot trim-air ducts (100) are removed.
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(6)
Make sure that the overheat detection loops A and B are removed from the heat shields and the APU bleed-air ducts (Ref. TASK 36-22-18-000-001).
(7)
Make sure that the APU bleed-air ducts (123) and (124) are removed (Ref. TASK 36-12-41-000-001).
(8)
Make sure that the electrical harness at the air conditioning pack compartment in Zone 191/192 are removed.
R **ON A/C 051-099, 106-149, 201-299, 301-399, 401-499,
Subtask 28-13-42-860-051
A. Aircraft Maintenance Configuration (Ref. Fig. 401/TASK 28-13-42-991-004, 402/TASK 28-13-42-991-006)
(1)
Make sure that the aircraft electrical circuits are de-energized (Ref. TASK 24-41-00-862-002).
(2)
Make sure that the air conditioning packs 10HM (11HM) are removed (Ref. TASK 21-52-41-000-001).
(3)
Make sure that the pack flow-control valves 8HB (11HB) are removed (Ref. TASK 21-51-51-000-001).
(4)
Make sure that the air ducts upstream of the flow-control valves 8HB (11HB) are removed (Ref. TASK 21-51-51-000-002).
(5)
Make sure that the hot trim-air ducts (100) are removed.
(6)
Make sure that the overheat detection loops A and B are removed from the heat shields and the APU bleed-air ducts (Ref. TASK 36-22-18-000-001).
(7)
Make sure that the APU bleed-air ducts (123) and (124) are removed (Ref. TASK 36-12-41-000-001).
(8)
Make sure that the electrical harness at the air conditioning pack compartment in Zone 191/192 are removed.
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4. Procedure
_________
**ON A/C 001-002,
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