# SDR AALA202503057208

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 27, 2025
- Submitted: March 5, 2025
- Operation: Air carrier
- Aircraft: [N997AA](https://openairdocs.org/aircraft/N997AA), registered now
- Make and model: Airbus A321-231
- Registry model: [Airbus A321-231](https://openairdocs.org/model/airbus-a321-231) (OpenAirDocs)
- Aircraft serial: 7349
- Aircraft time: 23,683 hours, 9,383 cycles
- System (JASC): [4990 · APU Oil System](https://openairdocs.org/jasc/4990)
- Part: Oil System
- Condition: Leaking
- Location: Apu
- Part time: 30,650 hours, 12,470 cycles
- 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/AALA202503057208

## Discrepancy

AIRCRAFT WAS GROUNDED: DURING IDLE PERIODS DURING DESCENT PRONOUNCED SMELL OF OIL AND FUMES.   MAINTENANCE FOUND OIL LEAKING FROM THE APU V BAND AND  REPLACED THE APU PER TASK CARD 26L31049003, ACCOMPLISHED A DECONTAMINATION OF THE ENVIRONMENTAL CONTROL SYSTEM PER TASK CARD 26L00021014. A SATISFACTORY LEAK / OPERATIONAL CHECK WAS ACCOMPLISHED WITH NO LEAKS / ODORS NOTED.

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