# SDR AALA202212070773

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 4, 2022
- Submitted: December 7, 2022
- Operation: Air carrier
- Aircraft: [N169UW](https://openairdocs.org/aircraft/N169UW), registered now
- Make and model: Airbus A321-211
- Registry model: [Airbus A321-211](https://openairdocs.org/model/airbus-a321-211) (OpenAirDocs)
- Aircraft serial: 1455
- Aircraft time: 69,248 hours, 26,389 cycles
- System (JASC): [4950 · APU Bleed Air System](https://openairdocs.org/jasc/4950)
- Part: Apu
- Part number: 38007081
- Part serial: P3659
- Condition: Odor
- Location: Zone 100
- Part time: 34,044 hours, 21,172 cycles
- Stage of operation: DE
- 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/AALA202212070773

## Discrepancy

AIRCRAFT WAS GROUNDED: SMELL OF DIRTY SOCKS DURING DESCENT.  MAINTENANCE ISOLATED THE SOURCE OF THE ODOR TO THE APU.  (OPEN)

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