Subtask 49-00-00-210-065
H. Inspection of the APU Compartment Fire, Duct and Drain Seals.
(1)
Examine the fire-wall seal at frame 80. If the seal is damaged or deformed, replace the seal (Ref. TASK 49-16-00-210-001).
(2)
Examine the APU inlet seal (diffuser to plenum interface). If the seal is damaged or deformed, replace the seal (Ref. TASK 49-16-45-000-001) and (Ref. TASK 49-16-45-400-001).
(3)
Make sure that the air-intake diffuser is correctly aligned. NOTE : If the diffuser is not correctly aligned, unwanted fluids can
____
be ingested.
-align the air-intake diffuser (Ref. TASK 49-16-45-400-001).
(4) Make sure that the APU drain tubes are correctly aligned with the bellows collector-assembly on the RH APU access door. If they are not correctly aligned:
-adjust the bellows assembly (Ref. TASK 49-17-41-400-001).
5. Close-up
________ Subtask 49-00-00-410-066
A. Close Access
(1)
Make sure that the work area is clean and clear of tool(s) and other items.
(2)
Set the LIGHT control switch 11LJ to the OFF position.
(3)
Close the APU access doors 316AR, 315AL (Ref. TASK 52-41-00-410-001).
(4)
Remove the access platform(s). Subtask 49-00-00-865-091
B.
Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s): 1KD, 2KD.
Subtask 49-00-00-860-070
C. Put the aircraft back to its initial configuration.
(1)
De-energize the ground service network
(Ref. TASK 24-42-00-862-001).
(2)
Remove the warning notice.
(3)
Pressurize the reservoirs of the hydraulic systems. (Ref. TASK 29-14-00-614-002).
TASK 49-00-00-790-004
Air Leak Test with closed APU Doors
1. Reason for the Job
__________________
Self Explanatory
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. 19-010 USA AMS 5687 LOCKWIRE STAINLESS STEEL ANNEALED 0.8MM DIA (Ref. 20-31-00)
C. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
24-41-00-861-002 Energize the Aircraft Electrical Circuits from the External Power 24-41-00-862-002 De-energize the Aircraft Electrical Circuits Supplied
from the External Power 29-14-00-614-001 Depressurization of the Hydraulic Reservoirs 29-14-00-614-002 Pressurization of the Hydraulic Reservoirs through
the Ground Connector 49-00-00-860-003 APU Start by External Power (GTCP 36-300) 49-00-00-860-004 APU Shutdown by External Power (GTCP 36-300) 52-41-00-010-001 Open the APU Doors for Access 52-41-00-410-001 Close the APU Doors after Access 49-00-00-991-013 Fig. 509
3. Job Set-up
__________ Subtask 49-00-00-860-100
A. Aircraft Maintenance Configuration
(1)
Energize the aircraft electrical circuits
(Ref. TASK 24-41-00-861-002).
(2)
On the panel 25VU, make sure that the APU MASTER SW pushbutton switch is off.
(3)
Put a warning notice in the cockpit to tell persons not to start the APU.
(4)
Make sure that hydraulic systems are depressurized
(Ref. TASK 29-14-00-614-001).
Subtask 49-00-00-865-107
B. Open, safety and tag this(these) circuit breaker(s):
-------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------121VU APU/APU/CTL 2KD L42 121VU APU/ECB/SPLY 1KD L41
Subtask 49-00-00-010-067
C. Get Access
(1)
Put the access platform in position below the APU access doors 315AL and 316AR.
(2)
Open the APU access doors 315AL and 316AR (Ref. TASK 52-41-00-010-001).
(3)
Set the LIGHT control switch 11LJ to the on position.
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