# SDR AALA202307288898

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 29, 2023
- Submitted: July 28, 2023
- Operation: Air carrier
- Aircraft: [N748UW](https://openairdocs.org/aircraft/N748UW), registered now
- Make and model: Airbus A319-112
- Registry model: [Airbus A319-112](https://openairdocs.org/model/airbus-industrie-a319-112) (OpenAirDocs)
- Aircraft serial: 1311
- Aircraft time: 58,510 hours, 37,162 cycles
- System (JASC): [4920 · APU Core Engine](https://openairdocs.org/jasc/4920)
- Part: Apu
- Part number: 38007081
- Part serial: P4182
- Condition: Odor
- Location: Zone 100 - Fuse
- Part time: 32,800 hours, 19,915 cycles
- Stage of operation: DE
- 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/AALA202307288898

## Discrepancy

AIRCRAFT WAS GROUNDED: WET DOG / MUSTY SMELL ON TAXI OUT AND ALSO ON DESCENT BELOW 10000 FEET. MAINTENANCE ISOLATED THE SOURCE OF THE ODOR TO THE APU. ** SUPPLEMENTAL REPORT FOR AALA202306018898: MAINTENNACE FOUND THE APU COMPARTMENT HAD RESIDUAL OIL AND CLEANED THE APU COMPARTMENT. A SATISFACTORY LEAK CHECK OF THE APU WAS ACCOMPLISHED AND NO LEAKS WERE NOTED. MAINTENANCE ACCOMPLISHED A DECONTAMINATION OF THE ENVIRONMENTAL CONTROL SSYTEM. A SATISFACTORY LEAK AND OPERATIONAL CHECK WAS ACCOMPLISHED WITH NO ODORS BEING NOTED. ** (CLOSED)

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