# SDR AALA202310095762

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 5, 2023
- Submitted: October 9, 2023
- Operation: Air carrier
- Aircraft: [N742PS](https://openairdocs.org/aircraft/N742PS), registered now
- Make and model: Airbus A319-112
- Registry model: [Airbus A319-112](https://openairdocs.org/model/airbus-industrie-a319-112) (OpenAirDocs)
- Aircraft serial: 1275
- Aircraft time: 60,614 hours, 38,284 cycles
- System (JASC): [4900 · Airborne Auxiliary Power Unit (APU) System](https://openairdocs.org/jasc/4900)
- Part: Cooling Fan
- Condition: Leaking
- Location: Apu
- Part time: 34,183 hours, 20,265 cycles
- Stage of operation: CR
- How discovered: O
- Nature of condition: B
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA202310095762

## Discrepancy

AIRCRAFT WAS GROUNDED: DIRTY SOCK SMELL REPORTED IN CABIN. INTERMITTENT DURING FLIGHT AND STRONGER ON THE GROUND. **SUPPLEMENTAL REPORT FOR AALA202310065762: MAINTENANCE REPLACED THE APU DUE TO THE APU GEABOX COOLING FAN MATING SURFACE BEING NICKED AND LEAKING OIL.  A SATISFACTORY LEAK / OPERATIONAL CHECK WAS ACCOMPLISHED.** (CLOSED)

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