SDR DALA2025082606332

Service difficulty report · Inlet · Airbus A320212

Difficulty date: August 25, 2025
Submitted: August 26, 2025
Operation: Air carrier
Aircraft: N336NW
Make and model: Airbus A320212
Aircraft serial: 355
Aircraft time: 95,784 hours, 44,319 cycles
System (JASC): 4900 · Airborne Auxiliary Power Unit (APU) System
Part: Inlet
Condition: Contaminated
Location: Apu
Stage of operation: DE
How discovered: O
Nature of condition: C, B
Precautionary procedure: O

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

What was found

DISC: ON DESCENT THRU 8000' FLEW THRU CLOUD AND STARTED SMELLING DIRTY SOCK ODER. SMELL REMAINED UNTILL ARIVING AT GATE. FOUND APU ILET CONTAMINATED WITH HYD CLEANED INLET + PLENUM, R/ INST. APU BLEED NO CONTAMINATION, CLEANED WHEEL WELL OF HYD FLUID, CHECK TORQUE HYD LINES IN W/W CW DUCT BURN OUT ON #1 ENG PER A320 AMM 71-00. NO MORE SMELL NOTED OK FOR SERVICE. (LP: 7353562)

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