(1)
Make sure that the work area is clean and clear of tool(s) and other items.
(2)
Set the LIGHT control switch to the OFF position.
(3)
Close the APU access doors 315AL, 316AR (Ref. TASK 52-41-00-410-001)
(4)
Remove the access platform(s).
(5)
Pressurize the reservoirs of the Hydraulic systems (Ref. TASK 29-14-00-614-002).
(6)
De-energize the aircraft electrical circuits
(Ref. TASK 24-41-00-862-002)
(7)
Remove the warning notice.
FLAP - AIR INTAKE - REMOVAL/INSTALLATION
________________________________________ TASK 49-16-43-000-003 Removal of the Air Intake Flap (131-9(A)) WARNING : DO NOT TOUCH THE APU UNTIL IT IS SUFFICIENTLY COOL TO PREVENT BURNS
_______ WHEN YOU DO THE MAINTENANCE TASK(S).
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) No specific access platform 3.5 m (11 ft. 6 in.)
B. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
24-42-00-861-001 Energize the Ground Service Network from the External Power 29-00-00-864-001 Put the Related Hydraulic System in the Depressurized
Configuration before Maintenance Action 52-41-00-010-001 Open the APU Doors for Access 49-16-43-991-005 Fig. 401
3. Job Set-up
__________ Subtask 49-16-43-860-052
A. Aircraft Maintenance Configuration
(1)
Energize the ground service network
(Ref. TASK 24-42-00-861-001).
(2)
On the panel 25VU make sure that the APU MASTER SW p/bsw is OFF.
R EFF : 001-049, 101-105, 107-107, 151-199, 49-16-43Page 401 201-210, Config-2 Aug 01/05
CES
(3)
Put the warning notices on panel 25VU to tell persons not to start the APU.
(4)
Make sure that hydraulic systems are depressurized
(Ref. TASK 29-00-00-864-001).
Subtask 49-16-43-865-056
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 49-16-43-010-052
C. Get Access
(1)
Put the access platform in position below the APU compartment.
(2)
Open the access doors 315AL, 316AR (Ref. TASK 52-41-00-010-001).
(3)
Set the LIGHT SW 11LJ to the ON position.
4. Procedure
_________ (Ref. Fig. 401/TASK 49-16-43-991-005) Subtask 49-16-43-020-054
A. Removal of the Air Intake Flap
(1)
Get access from behind of the closed air intake flap:
-
Remove and discard the cotter pin (3).
-
Remove the castle nut (4), the washer (5), the bolt (6) and disconnect the actuator (1) from the air intake flap (8).
(2)
Put the APU MASTER SW p/bsw to the 'ON' position to retract the air-intake flap-actuator. If no electrical power is available, do the subsequent steps.
(3)
Open the maintenance door 314AR.
(a) Release the 22 stud fasteners and remove the catwalk panel from the service panel.
R EFF : 001-049, 101-105, 107-107, 151-199, 49-16-43Page 402 201-210, Config-2 Aug 01/05
CES
Air Intake Flap
Figure 401/TASK 49-16-43-991-005
CES
(b) With a ratchet spanner, turn the manual override device of the air intake flap-actator (47 and one quarter turns) and fully open the air intake flap.
(4)
Hold the air intake flap (8) and remove the screws (7) from the hinge assembly.
(5)
Remove the air intake flap (8) from the air inlet duct (2).
R EFF : 001-049, 101-105, 107-107, 151-199, 49-16-43Page 404 201-210, Config-2 Aug 01/05
CES TASK 49-16-43-400-003
Installation of the Air Intake Flap (131-9(A))
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