# SDR AALA202108309224

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 26, 2021
- Submitted: August 30, 2021
- Operation: Air carrier
- Aircraft: [N139AN](https://openairdocs.org/aircraft/N139AN), registered now
- Make and model: Airbus A321-231
- Registry model: [Airbus A321-231](https://openairdocs.org/model/airbus-a321-231) (OpenAirDocs)
- Aircraft serial: 6687
- Aircraft time: 18,108 hours, 6,888 cycles
- System (JASC): [4990 · APU Oil System](https://openairdocs.org/jasc/4990)
- Part: Oil Cooler
- Part number: 1604941
- Part serial: 4516
- Condition: Leaking
- Location: Apu Oil
- Part time: 14,620 hours, 5,438 cycles
- Stage of operation: TX
- How discovered: O
- Nature of condition: B
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA202108309224

## Discrepancy

AIRCRAFT WAS GROUNDED: UPON BOARDING SMELLED FOWL ODOR THAT WAS A COMBINATION OF BARNYARD OILY BURNING THAT CONTINUED THROUGHOUT THE FLIGHT. REPLACED APU OIL COOLING FAN PER AMM 49-52-51 (AALA202108305659) AND APU OIL COOLER (AALA202108309224) PER AMM 49-91-44. A SATISFACTORY LEAK AND OPERATIONAL CHECK WAS ACCOMPLISHED.

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