# SDR YENA2025101401019

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 10, 2025
- Submitted: October 14, 2025
- Operation: Air carrier
- Aircraft: [N988JT](https://openairdocs.org/aircraft/N988JT), registered now
- Make and model: Airbus A321-231
- Registry model: [Airbus A321-231](https://openairdocs.org/model/airbus-a321-231) (OpenAirDocs)
- Aircraft serial: 07956
- Aircraft time: 32,955 hours, 6,515 cycles
- System (JASC): [4920 · APU Core Engine](https://openairdocs.org/jasc/4920)
- Part: Plenum
- Condition: Contaminated
- Location: Apu
- Stage of operation: DE
- How discovered: O
- Nature of condition: C, B
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/YENA2025101401019

## Discrepancy

FLT#1573, EWR-LAX. "ON DESCENT NEAR 10000FT INFLIGHT SMELLED STRONG ODOR. DISSIPATED OVER TIME SMELL NEVER WENT AWAY. BRIEF FAINT SMELL IN COCKPIT; REF INFO NOTICE 2017-T015L AND TSM 05-50-00-810-831-A. FOUND OIL RESIDUE IN APU INTAKE PLENUM ACCOMP DECONTAMINATION AND R/R OF RECIRC FILTERS. RAN #1 & 2 ENGINES. NO ODER OPS CHECK NORMAL."

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