# SDR YENA2026091800812

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 16, 2026
- Submitted: September 19, 2026
- Operation: Air carrier
- Aircraft: [N967JT](https://openairdocs.org/aircraft/N967JT), registered now
- Make and model: Airbus A321-231
- Registry model: [Airbus A321-231](https://openairdocs.org/model/airbus-a321-231) (OpenAirDocs)
- Aircraft serial: 07257
- Aircraft time: 42,364 hours, 8,401 cycles
- System (JASC): [4900 · Airborne Auxiliary Power Unit (APU) System](https://openairdocs.org/jasc/4900)
- Part: Apu
- Condition: Odor
- Location: Zone 100
- Stage of operation: CR
- 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/YENA2026091800812

## Discrepancy

FLT 323, JFK-LAX.  IN FLIGHT, REPORTED CHEMICAL ODOR,  APU ODOR EVENT SUSPECTED AFTER ENG RUNS CAME BACK WITH NO FINDINGS (APU SYSTEM ).  C/W INFO NOTICE 2017-T015N, STEP 1 ISOLATED FAULT TO TYPE 10 LEVEL IAW TSM 05-50-00-810-085-B. AS A PRECAUTION, MEL APU IAW 49-10-01A, CAT C MDDR  630613. MX4 UPDATED PLACARD INSTALLED MCC NOTIFIED . CFDS APU FCN NOT AVAIL PULL AND COLLARED L41 AND L42 ON 121VU PER MEL 49-10-01A.  OPEN

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