-
make sure that the ANTI-ICE/WING P/BSW ON light is off.
(7)
Start the Ground Air Power Cart (GAPC) and adjust the air pressure slowly until it becomes stable at 3.0 bar (43.5113 psi) +/- 0.2 bar (2.9007 psi).
(8)
Use leak detection solution to do a leak check of the wing bleed air ducting connections. Do the leak check from the wing/fuselage connection, to the wing anti-ice valve and the precooler on:
-all the air ducts, each duct joint and all flexible connections.
NOTE : Leakage is permitted when a series of bubbles are continuously
____ maintained on the joint line, and as one bubble breaks another forms. This indicates that the detection solution can maintain itself on the joint line. Leakage is not permitted, when air pressure blows detection solution from the joint line to prevent a continuous series of bubbles.
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(9) Stop the Ground Air Power Cart (GAPC).
(10) On the AIR COND panel 30VU: - put the X BLEED switch to the AUTO position.
(11) De-energize the aircraft electrical circuits (Ref. TASK 24-41-00-862-002).
(12) Replace and/or reseal ducts that leak (Ref. TASK 36-11-48-000-004) and (Ref. TASK 36-11-48-400-004).
5. Close-up________
Subtask 36-11-48-865-067
A. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s): 1HV, 2HV, 2HV, 3HA1, 3HA2, 2HA1, 2HA2.
R **ON A/C 001-049, 101-105, 151-199, 201-227,
Subtask 36-11-48-410-058-A
B. Close Access
R R (1) Use distilled water to remove any leak detecting solution from the ducting and dry with a MISCELLANEOUS (Material No. 19-003).
(2) Install the insulation muffs that have been removed.
(3) Use MISCELLANEOUS (Material No. 19-001) to safety the insulation muffs.
(4) Make sure that the work area is clean and clear of tool(s) and other items.
R R R (5) Install the applicable access panels (Ref. TASK 53-35-11-400-001), (Ref. TASK 57-41-37-400-002), (Ref. TASK 57-41-37-400-005), (Ref. TASK 57-41-37-400-009): (Ref. Fig. 601/TASK 36-11-48-991-022)
(a) For the LH wing: - install the access panels 191BT, 521AB, 521BB, 521CB, 521EB, 521BT, 522AB.
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(b) For the RH wing:
- install the access panels 192BT, 621AB, 621BB, 621CB, 621EB,
621BT, 622AB.
(c) For the LH engine pylon:
- install the access panels 413DL, 414FR.
(d) For the RH engine pylon:
- install the access panels 423DL, 423FL.
(6) If the GAPC was used:
- close the access door 191DB.
R **ON A/C 051-099,
R Subtask 36-11-48-410-058
R B. Close Access
R (1) Use distilled water to remove leak detecting solution from the
R ducting and dry with a MISCELLANEOUS (Material No. 19-003).
R (2) Install the insulation muffs that have been removed.
R (3) Use MISCELLANEOUS (Material No. 19-001) to safety the insulation
R muffs.
R (4) Make sure that the work area is clean and clear of tool(s) and other
R items.
R (5) Install the applicable access panels (Ref. TASK 53-35-11-400-001),
R (Ref. TASK 57-41-37-400-002), (Ref. TASK 57-41-37-400-005),
R (Ref. TASK 57-41-37-400-009):
R (Ref. Fig. 601/TASK 36-11-48-991-022)
R (a) For the LH wing:
R - install the access panels 191BT, 521AB, 521BB, 521CB, 521EB,
R 521BT, 522AB.
R (b) For the RH wing:
R - install the access panels 192BT, 621AB, 621BB, 621CB, 621EB,
R 621BT, 622AB.
R (c) For the LH engine pylon:
R - install the access panels 413DL, 414FR.
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R R (d) For the RH engine pylon: - install the access panels 423DL, 423FL.
R (6) Close the access door 191DB.
R **ON A/C 001-049, 051-099, 101-105, 151-199, 201-227,
Subtask 36-11-48-860-057
C. Aircraft Maintenance Configuration
WARNING : MAKE SURE THAT THE TRAVEL RANGES OF THE FLIGHT CONTROLS ARE_______ CLEAR. MOVEMENT OF FLIGHT CONTROLS CAN CAUSE INJURY TO PERSONS AND/OR DAMAGE.
(1) Remove the LOCKING TOOL - FLAP/SLAT CONTROL LEVER (98D27803000000) from the flap/slat control lever on panel 114VU.
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