- calculate the APU oil consumption.

 4. Fault Isolation
_______________
 A. If the APU oil consumption is more than 65 cm3 (3.96 in.3) per APU operating hour:
 - examine the APU externally for oil leaks on oil system components and oil lines (Ref. AMM TASK 49-00-00-790-001).
 (1) If you find external oil leaks:

 - correct/replace as necessary.

 (2) If you do not find external oil leaks:

 - examine the APU for internal oil leakage (Ref. AMM TASK 49-00-00-790-001).

 - remove, clean and install the TURBINE BEARING CAVITY VENT (Ref. AMM TASK 49-91-53-000-001) and (Ref. AMM TASK 49-91-53-400-001).

 「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 : 001-003, 051-099, 401-499, ∞∞49-00-00∞∞∞∞∞∞∞∞∞∞Page A224
 Config-1 Aug 01/05 CES (a) If the fault continues:

 - replace the AUXILIARY POWER UNIT (4005KM) (Ref. AMM TASK 49-11-11-000-001) and (Ref. AMM TASK 49-11-11-000-001).

 TASK 49-00-00-810-846

 Fumes in the Cabin/Oil Smoke at the APU Exhaust (GTCP 36-300)
 WARNING : DO NOT TOUCH THE APU UNTIL IT IS SUFFICIENTLY COOL TO PREVENT BURNS
_______
 WHEN YOU DO THE MAINTENANCE TASK(S).

 WARNING : BE CAREFUL WHEN YOU DRAIN THE ENGINE OIL AND/OR LOOSEN THE FILLER
_______ CAP. HOT OIL CAN SPILL PAST THE FILLER CAP WHEN THE OIL LEVEL IS ABOVE THE 'ADD' RANGE (MARKED ON THE SIGHT GLASS).
 WARNING : WEAR GOGGLES, INSULATED GLOVES AND OTHER PROTECTIVE CLOTHES.
_______
 HOT OIL CAN BURN YOUR EYES AND SKIN.
 IF OIL TOUCHES YOUR EYES OR SKIN, GET MEDICAL AID.

 WARNING : AVOID BREATHING OF VAPORS.
_______
 WARNING : OBEY THE FUEL SAFETY PROCEDURES.
_______
 WARNING : DO NOT GET AIRCRAFT FUEL:
_______
 - IN YOUR MOUTH

 - IN YOUR EYES

 - ON YOUR SKIN FOR A LONG TIME.
 AIRCRAFT FUEL IS POISONOUS.

 WARNING : DO NOT GET YOUR CLOTHES SOAKED WITH FUEL.
_______
 CAUTION : MAKE SURE THAT YOU HAVE THE CORRECT FIRE FIGHTING EQUIPMENT
_______ AVAILABLE. THE APU FIRE EXTINGUISHING SYSTEM IS NOT SUFFICIENT TO EXTINGUISH A FIRE IF THE ACCESS DOORS 315AL AND 316AR ARE OPEN/ REMOVED. KEEP OPERATION OF THE APU TO A MINIMUM WHEN THE ACCESS DOORS ARE OPEN/REMOVED.
 1. Possible Causes
_______________
 - plumbing/tubing

 - APU component interfaces

 - OIL COOLER
 - oil filler cap and scupper

 - pressure fill and overflow ports

 - OIL PUMP ASSY

 - APU GENERATOR (8XS)

 - FUEL CONTROL UNIT P19

 - INLET GUIDE-VANE ACTUATOR P21
 - oil contamination inside cooling-fan discharge duct

 - unwanted material on the surfaces of the air intake system components

 - the oil level in the oil reservoir is above the FULL mark on the oil sight glas

 - seals on the turbine bearing cavity vent and lubrication tubes

 - AUXILIARY POWER UNIT (4005KM)

 - Load-Compressor Buffer-air Bypass Valve

 「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 : 001-003, 051-099, 401-499, ∞∞49-00-00∞∞∞∞∞∞∞∞∞∞Page A226
 Config-1 Aug 01/05 CES

 - OIL COOLER (8079KM)

 - OIL PUMP ASSY (8080KM)

 - FUEL CONTROL UNIT (8022KM)

 - INLET GUIDE-VANE ACTUATOR (8014KM)

 - flexible seals on the air intake system

 2. Job Set-up Information
______________________
 A. Fixtures, Tools, Test and Support Equipment
 -------------------------------------------------------------------------------REFERENCE QTY DESIGNATION -------------------------------------------------------------------------------
No specific black light lamp
 B. Consumable Materials
 -------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
No specific overflow drain tool
 C. Referenced Information
 -------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
49-00-00-810-851 Oil Smoke at the APU Exhaust (GTCP 36-300) AMM 12-33-21-618-001 Pre-conditioning with the APU AMM 21-00-00-100-001 Cleaning of Special Components in the Environmental
　
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