(2) Make sure that:
- the flexible seals on the air intake system are in the correct condition
- the alignment of the air inlet duct is correct
(Ref. AMM TASK 49-16-00-210-002).
(3) Clean the air inlet duct and the air intake diffuser and elbow (Ref. AMM TASK 49-16-00-100-002),
(4) Clean the APU bleed air duct, the pneumatic ducts of the aircraft and the environmental control system (Ref. AMM TASK 21-00-00-615-001) or (Ref. AMM TASK 21-00-00-615-002) and (Ref. AMM TASK 21-00-00-615-003) or (Ref. AMM TASK 21-00-00-615-004).
(5) Do the pre-conditioning with the APU (Ref. AMM TASK 12-33-21-618-001) and make sure that you do not smell fumes in the cabin and/or see oil smoke at the APU exhaust.
(6) Do a check and make sure that you do not find an oil leak on the APU, the APU generator and check for Oil leak at the Oil Press SW (8091KM).
TASK 49-00-00-810-923
Emergency Shutdown on the Ground (APS 3200)
1. Possible Causes
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- water ingress in panel 108VU
- FIRE EMERG-STOP RELAY (5WF)
- APU SHUT OFF PUSHBUTTON-SWITCH (1KL)
- APU FIRE/WARN MODULE (1WD)
- wiring
- ECB (59KD)
2. Job Set-up Information
______________________
A. Referenced Information
-------------------------------------------------------------------------------
REFERENCE DESIGNATION
-------------------------------------------------------------------------------
AMM 05-23-10-200-003 Zonal Inspection of Tail Cone APU and Accessory
Compartment
AMM 26-22-00-710-001 Operational Test of the APU Fire-Extinguishing
Loop/Squib
AMM 26-22-00-710-002 Operational Test of APU Auto-Fire-Exting. Circuit and the APU LP Fuel-Valve operation using each indiv. motor in turn and Test APU Emerg. Shutdown Circuit
AMM 49-00-00-710-005 Self-Test of the ECB (APS 3200)
AMM 49-11-11-000-003 Removal of the Power Plant (APU) (APS 3200)
AMM 49-11-11-400-003 Installation of the Power Plant (APU) (APS 3200)
AMM 49-61-34-000-002 Removal of the Electronic Control Box (ECB) (59KD)
(APS 3200) AMM 49-61-34-400-002 Installation of the Electronic Control Box (ECB) (59KD) (APS 3200) AMM 49-62-00-710-004 Operational Test of the Emergency Shutdown Circuit
(using the APU Shut Off Switch 1KL) (APS 3200)
AMM 49-81-41-000-002 Removal of the Exhaust Muffler (APS 3200)
AMM 49-81-41-400-002 Installation of the Exhaust Muffler (APS 3200)
3. Fault Confirmation
__________________
A. Do the subsequent checks.
(1) Make sure the APU FIRE pushbutton switch on the APU FIRE/WARN module (1WD) was not pushed by a person accidentally.
(2) Make sure the APU SHUT OFF (1KL) switch on the external power-control panel 108VU was not pushed by a person accidentally.
(3) Make sure that there is no water ingress in the external power-control panel 108VU.
「一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一1R EFF : 106-106, 108-149, 211-299, 301-399, ∞∞49-00-00∞∞∞∞∞∞∞∞∞∞Page 286
Config-2 Aug 01/05 CES
(4) Make sure that the FDU is not triggered.
(5) Do the test of the APU fire detection system (Ref. AMM TASK 26-22-00-710-001).
(6) Do the test of the APU emergency shutdown system with the APU SHUT OFF pushbutton switch (1KL) (Ref. AMM TASK 49-62-00-710-004).
(7) Do the operational test of the APU AUTO Fire Extinguishing (Ref. AMM TASK 26-22-00-710-002).
(8) Do the ECB BITE Test (Ref. AMM TASK 49-00-00-710-005).
4. Fault Isolation
_______________
A. If you find signs of water ingress in panel 108VU:
- remove the APU SHUT OFF switch (1KL).
- do a check for moisture/corrosion on the electrical connections.
- dry the electrical connections.
- re-install the APU SHUT OFF switch (1KL).
B. If you do not find the signs of a fire and the tests do not confirm the fault:
- do an inspection of the APU and the APU compartment and make sure that you do not find the signs of a fire (Ref. AMM TASK 05-23-10-200-003),
- do a check and make sure that the APU bleed-air duct is in the correct condition and connected correctly,
- do a check and make sure that the APU exhaust duct is in the correct condition and connected correctly.
(1) If you find the signs of a fire when you do the inspection of the APU and the APU compartment:
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