Service difficulty report · Gearbox · Airbus A320212

Difficulty date
November 2, 2024
Submitted
November 6, 2024
Operation
Air carrier
Aircraft
N359NW
Make and model
Airbus A320212
Aircraft serial
846
Aircraft time
76,830 hours, 36,105 cycles
Part
Gearbox
Condition
Leaking
Location
Apu
Stage of operation
TX
How discovered
O
Nature of condition
K, B
Precautionary procedure
O

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

What was found

SHIP 3259 DISC: ON ARRIVAL TO SLC HAD A DIRTY SOCK ODOR AFTER APU BLEED SELECTION. NOTICED ON FLIGHT DECK AND AFT CABIN. C/A: DURING W/C 4900-2001 ISOL APU OIL LEAK, FOUND OIL CONTAMINATING ENTIRE INTAKE DUCT/PLENUM, INLET SCREEN AREA, AND COOLING FAN INLET. FOUND SMALL AMOUNT OF FRESH OIL ON COMPRESSOR DRAIN TUBE. RAN APU BUT NO LEAK FOUND. FOUND OIL ON LOAD CONT. VLV CLAMP. INSP IDG, OIL COOLER, STARTER, OIL PUMP AND ALL EXTERIOR COMPONENTS OF APU. NO LEAKS FOUND. W.I.P. 868406. DURING PRIOR T /S APU GEARBOX WAS FOUND LEAKING AT THE COOLING FAN. REF A/C LOG 6527615 FOR APU MEL APPLIED. ALSO REF A/C LOG 0639539 FOR NO-GO ODI STEPS AND WORKCARDS ACCOMPLISHED FOR SMOKE/FUMES EVENT. 963844. NO FURTHER ODOR NOTED AFTER APU DEACTIVATION AND DUCT BURNOUT. OK FOR SVC. (LP: 6527612)

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