# SDR DALA2025082606332

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 25, 2025
- Submitted: August 26, 2025
- Operation: Air carrier
- Aircraft: [N336NW](https://openairdocs.org/aircraft/N336NW), registered now
- Make and model: Airbus A320-212
- Registry model: [Airbus A320-212](https://openairdocs.org/model/airbus-industrie-a320-212) (OpenAirDocs)
- Aircraft serial: 355
- Aircraft time: 95,784 hours, 44,319 cycles
- System (JASC): [4900 · Airborne Auxiliary Power Unit (APU) System](https://openairdocs.org/jasc/4900)
- Part: Inlet
- Condition: Contaminated
- Location: Apu
- Stage of operation: DE
- How discovered: O
- Nature of condition: C, B
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DALA2025082606332

## Discrepancy

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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