Service difficulty report · Unknown · Airbus A330223

Difficulty date
November 5, 2023
Submitted
November 7, 2023
Operation
Air carrier
Aircraft
N855NW
Make and model
Airbus A330223
Aircraft serial
0621
Aircraft time
75,937 hours, 9,696 cycles
Part
Unknown
Part number
UNKNOWN
Condition
Unknown
Location
Unknown
Stage of operation
IN
How discovered
O
Nature of condition
O
Precautionary procedure
K

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

DIRTY SOCK SMELL THROUGHOUT CABIN WITH APU BLEED ON. CORRECTIVE ACTION: FOUND APU LEAKING OIL FROM ACCESSORY DRAIN ON WALKAROUND. OPENED APU COMPARTMENT AND FOUND FUEL LEAKING FROM DIVIDER ASSY (59KF25). FUEL PUDDLED INSIDE DOOR AND DRIPPING INTO INLET. INSTALLED FLOW DIVIDER. PERFORMED BLACK LIGHT INSPECTION OF APU PNUMATIC DUCT. AFT OF ISOLATION ON OIL RESIDUE. FOUND FUEL DRIPPING FROM DRAIN MAST. COMING FROM F/C. R/R APU FUEL CONTROL UNIT. ISOLATED TO APU CREATING THE SMELL. WILL NEED NEW APU. PERFOMED PACK BURN OUT USING ENG 1 AND ENG 2 BLEED AIR SUPPLY, NO LONGER ANY SMELLS IN CABIN. C/W LEVEL A DECONTAMINATION. APU WILL BE CHANGED. ON 08NOV2023, REPLACED APU.

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