# SDR YENA2026072800628

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 25, 2026
- Submitted: July 29, 2026
- Operation: Air carrier
- Aircraft: [N944JT](https://openairdocs.org/aircraft/N944JT), registered now
- Make and model: Airbus A321-231
- Registry model: [Airbus A321-231](https://openairdocs.org/model/airbus-a321-231) (OpenAirDocs)
- Aircraft serial: 06359
- Aircraft time: 48,556 hours, 9,537 cycles
- System (JASC): [4990 · APU Oil System](https://openairdocs.org/jasc/4990)
- Part: Oil System
- Condition: Leaking
- Location: Apu
- 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/YENA2026072800628

## Discrepancy

FLT 524, LAX-JFK. TAXI OUT OIL ODOR WITH APU BLEED, DISSAPATED & ODOR RETURN ON DESCENT THRU 16000 FT FOLLOWED FROM ODORIZED RECOGNITION & ISOLATION PROCEDURE; FOLLOWED INFO NOTICE & TSM 05-50-00-810-831-A FOUND ODOR TO BE TYPE 1 & COMING FROM APU FOUND APU OIL LEAK. PERFORMED LVL A DECONTAMINATION REF AMM 21-00-00-615-802-A PLACED APU ON MEL REF DEFECT 4565160-2 A/C CLEAR FOR SVC

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