# SDR GTIA2025072439006

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 22, 2025
- Submitted: July 24, 2025
- Operation: Air carrier
- Aircraft: [N617NK](https://openairdocs.org/aircraft/N617NK), registered now
- Make and model: Airbus A320-232
- Registry model: [Airbus A320-232](https://openairdocs.org/model/airbus-a320-232) (OpenAirDocs)
- Aircraft serial: 5387
- Aircraft time: 44,256 hours, 20,159 cycles
- System (JASC): [4990 · APU Oil System](https://openairdocs.org/jasc/4990)
- Part: Oil System
- Condition: Leaking
- Location: Apu
- Stage of operation: DE
- How discovered: O
- Nature of condition: K, B
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/GTIA2025072439006

## Discrepancy

DIRTY SOCK SMELL ON DESCENT AND WITH APU RUNING. CONTINUOUS AND DISCOMFORTABLE, DIRTY SOCK / MUSTY DRY SMELL. APPARENT CABIN SOURCE: CABIN AIR SUPPLY VENTS. FLIGHT DECK. NO VISIBLE SMOKE/HAZE. NO MEDICAL ATTENTION REQUIRED.-REF. TSM 05-50-00-810-831-A PERFORMED DECISION TABLE AND CULCULATED THE SOURCE TO BE COMING FROM APU. PERFORMED INSP OF APU IAW AMM 49-00-00 AND FOUND EXCESS OIL AROUND APU LUBE MOUDULE PERFORMED LEAK CHECK OF APU IAW AMM 49-00-00 AND FOUND WETNESS AROUND LUBE MODULE SCAVANGE FILTER REF L/P 3525101-1 FOR CONTINUATION

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