(d) Remove the cooling-fan discharge-duct (Ref. AMM TASK 49-52-51-000-001) and examine if there is oil contamination inside the duct. If there is oil contamination inside cooling-fan discharge duct and the inside of the APU inlet plenum is clean:

 - do a further inspection of the cooling fan.

 (e) If there is oil leakage in the area of the oil cooler:

 - replace the seals at the connectors and the interface between the oil cooler and the thermal by-pass valve, and/or the OIL COOLER (8079KM) (Ref. AMM TASK 49-91-44-000-001) and (Ref. AMM TASK 49-91-44-400-001), and/or the THERMAL BY-PASS VALVE (Ref. AMM TASK 49-91-44-000-002) and (Ref. AMM TASK 49-91-44-400-002), as necessary.

 (f) If there is oil in the scupper of the gravity fill port or the scupper is wet from oil:

 NOTE : It is possible that the oil scupper was not made dry
____ correctly after the last oil servicing and the oil which was filled in too much has stayed in the scupper.
 - if the oil level in the oil reservoir is above the FULL mark on the oil sight glass, correct it with the overflow drain tool (Ref. AMM TASK 49-90-00-600-001).

 - make sure that the oil filler cap and the seal are the correct condition and replace them if necessary,

 - make sure that the packings of the oil scupper seal correctly and replace them if necessary.

 (g) If the couplings of the pressure fill and overflow ports are not tight:
 - replace the couplings as necessary.
 「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 : 063-099, 401-499, ∞∞49-00-00∞∞∞∞∞∞∞∞∞∞Page A239
 Config-1 Aug 01/05 CES

 (h) If there is oil leakage in the area of the oil pump assy:

 - replace the seals and or the OIL PUMP ASSY (8080KM) as necessary (Ref. AMM TASK 49-91-45-000-001) and (Ref. AMM TASK 49-91-45-400-001).

 (i) If there is oil leakage in the area of the APU generator:

 - replace the SEALING PLATE and/or the APU GENERATOR (8XS) (Ref. AMM TASK 24-23-51-000-001) and (Ref. AMM TASK 24-23-51-400-001), as necessary.

 (j) If there is oil leakage in the area of the lupe pump filter and/or the generator scavenge filter:

 - replace the packing of the related filter housing (Ref. AMM TASK 49-91-41-200-001) and/or (Ref. AMM TASK 49-91-45-200-002).

 (k) If there is oil leakage at the magnetic chip detector:

 - replace the packing of the magnetic chip detector (Ref. AMM TASK 49-91-42-200-001).

 (l) If there is oil leakage at the oil-sump drain-plug housing:

 - replace the packing of the drain plug housing (Ref. AMM TASK 49-91-42-400-001).

 (m) If there is oil leakage at the turbine bearing oil-pressure and -scavenge fitting (6 o'clock pos.):

 - replace the scavange tube packing of the adapter assy; or

 - replace the pressure tube packing of the adapter assy; or

 - replace the packing of the adapter assy (Ref. AMM TASK 49-91-53-000-001) and (Ref. AMM TASK 49-91-53-400-001).

 (n) If there is oil leakage at the turbine-bearing vent-tube assembly:

 - replace the packing of the vent-fitting elbow; or

 - replace the packing between the check valve and the vent-fitting elbow; or

 - replace the packing between the vent tube and the check valve.

 (o) If there is oil leakage at the oil level switch/gearbox interface:

 - replace the packing of the oil level switch (Ref. AMM TASK 49-93-16-000-001) and (Ref. AMM TASK 49-93-16-400-001).

 (p) If there is oil leakage at the de-oil solenoid/gearbox interface:

 - replace the packing of the de-oil solenoid (Ref. AMM TASK 49-91-49-000-001) and (Ref. AMM TASK 49-91-49-400-001).
 「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 : 063-099, 401-499, ∞∞49-00-00∞∞∞∞∞∞∞∞∞∞Page A240
 Config-1 Aug 01/05 CES

 (q) If there is oil leakage at the oil pressure/temperature assembly:

 - replace the packing of the oil temperature switch/mount block interface; or

 - replace the packing of the oil pressure/mount block interface; or

 - replace the oil pressure/temperature assembly (Ref. AMM TASK 49-94-00-000-003) and (Ref. AMM TASK 49-94-00-400-001).

 (r) If there is oil leakage at the gearbox regulator-valve assembly:

 - replace the packing of the tranfer tubes; or

 - replace the packing of the gearbox regulator-valve assembly interface (Ref. AMM TASK 49-26-53-000-001) and (Ref. AMM TASK 49-26-53-400-001).
　
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