# SDR AALA202605011503

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 28, 2026
- Submitted: May 1, 2026
- Operation: Air carrier
- Aircraft: [N153UW](https://openairdocs.org/aircraft/N153UW), registered now
- Make and model: Airbus A321-211
- Registry model: [Airbus A321-211](https://openairdocs.org/model/airbus-a321-211) (OpenAirDocs)
- Aircraft serial: 5594
- Aircraft time: 39,751 hours, 16,547 cycles
- System (JASC): [2120 · Air Distribution System](https://openairdocs.org/jasc/2120)
- Part: Oil System
- Condition: Leaking
- Location: Apu
- Component: Apu, Hnywl
- Component part number: 38007081
- 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/AALA202605011503

## Discrepancy

AIRCRAFT WAS GROUNDED: MUSTY ODOR DESCENDING OUT OF FL350 UNTIL GATE ARRIVAL.  FOUND THE APU LEAKING OIL AT THE V BAND AREA AND REPLACED THE APU PER JOB CARD 26L31049003.

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