(b)
Put the seal (5) in position between the ducts (1) and install the screws (6) and the nuts (4).
(c)
Put the bellows (3) and the clamps (2) in position on the duct
(1) and tighten the clamps (2) or,
(d)
Put the sleeve (8) and the clamps (2) in position on the duct (1) and tighten the clamps (2).
Subtask 21-20-00-865-052
C. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s): 1HG, 3HG.
Subtask 21-20-00-710-050
D. Leak Check of the Air-Conditioning Distribution Ducts
(1)
Do the pre-conditioning through the LP ground connection (Ref. TASK 12-33-21-618-001).
(2)
Do a check for leaks at the duct connections.
NOTE : Leaks are not allowed.
____
(3) Stop the pre-conditioning through the LP ground connection (Ref. TASK 12-33-21-618-001).
5. Close-up
________ Subtask 21-20-00-410-050
A. Close Access
(1)
Make sure that the work area is clean and clear of tool(s) and other items. (Ref. Fig. 201/TASK 21-20-00-991-001)
(2)
For the cabin area supply and the cargo-compartment ventilation ducts in the FWD cargo compartment area:
(a)
Install the access panels as necessary (Ref. TASK 25-54-12-400-001), (Ref. TASK 25-54-12-400-002) or (Ref. TASK 25-54-12-400-003).
(b)
Close the FWD cargo-compartment door 825 (Ref. TASK 52-30-00-860-002).
(c)
Remove the access platform.
(3)
For the cabin area supply ducts in the MID cabin and the wing box area:
(a) Install the cabin floor panels as necessary (Ref. TASK 53-32-12-400-002).
(4)
For the riser ducts in the cabin area:
(a) Install the upper and the lower sidewall panels as necessary (Ref. TASK 25-23-43-400-001) and (Ref. TASK 25-23-44-400-001).
(5)
For the cabin area supply and the cargo-compartment ventilation ducts in the AFT cargo compartment area:
(a)
Install the access panels as necessary (Ref. TASK 25-55-11-400-001), (Ref. TASK 25-55-11-400-002), (Ref. TASK 25-55-11-400-003), (Ref. TASK 25-55-12-400-001), (Ref. TASK 25-55-12-400-002) or (Ref. TASK 25-55-12-400-003).
(b)
Close the AFT cargo-compartment door 826 (Ref. TASK 52-30-00-860-002).
(c)
Remove the access platform.
(6)
Remove the warning notice(s).
Subtask 21-20-00-862-050
B. De-energize the aircraft electrical circuits (Ref. TASK 24-41-00-862-002)
DISTRIBUTION - INSPECTION/CHECK
_______________________________ TASK 21-20-00-210-001 General Visual Inspection of the Riser Ducts in the Passenger Compartment WARNING : MAKE SURE THAT AIR IS NOT SUPPLIED TO THE AIR CONDITIONING SYSTEM
_______
FROM THE MAIN ENGINE, THE APU OR A GROUND SOURCE.
HOT COMPRESSED AIR CAN CAUSE INJURY TO PERSONNEL.
1.
Reason for the Job
__________________
Refer to the MPD TASK: 212100-02
2.
Job Set-up Information
______________________
A. Fixtures, Tools, Test and Support Equipment
-------------------------------------------------------------------------------REFERENCE QTY DESIGNATION -------------------------------------------------------------------------------
No specific circuit breaker(s) safety clip(s)
B. Consumable Materials
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
Material No. 08-085 D DAN 269A25
ADHESIVE TAPE, PTFE (Ref. 20-31-00) R Material No. 08-107 D DAN 382-H R ADHESIVE TAPE FOR PE FOAM INSULATION (Ref. 20-31-00) C. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
21-20-00-010-001 Removal of the Air-Conditioning Distribution Ducts 21-20-00-410-001 Installation of the Air-Conditioning Distribution
Ducts 25-21-41-000-001 Removal of the Passenger Seats 25-21-41-400-001 Installation of the Passenger Seats 25-23-43-000-001 Removal of the Upper Sidewall Panel(s) 25-23-43-400-001 Installation of the Upper Sidewall Panel(s) 25-23-44-000-001 Removal of the Lower Sidewall-Panels (Dado Panels) 25-23-44-400-001 Installation of the Lower Sidewall-Panels (Dado
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