# SDR GTIA2017040301857

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 3, 2017
- Submitted: April 3, 2017
- Operation: Air carrier
- Aircraft: [N658NK](https://openairdocs.org/aircraft/N658NK), registered now
- Make and model: Airbus A321-231
- Registry model: [Airbus A321-231](https://openairdocs.org/model/airbus-a321-231) (OpenAirDocs)
- Aircraft serial: 6736
- Aircraft time: 6,039 hours, 2,694 cycles
- System (JASC): [4920 · APU Core Engine](https://openairdocs.org/jasc/4920)
- Part: Apu
- Condition: Leaking
- Location: Apu Bay
- Stage of operation: DE
- How discovered: O
- Nature of condition: K, B
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/GTIA2017040301857

## Discrepancy

FUMES REPORTED BY F/AS DESCENDING 14,000 AND WENT AWAY DESCENDING THROUGH 10,000. PERFORMED TSM 49-00-00-810-921-A. R&R SEALING PLATE IAW AMM 24-23-51 AND UPON INSPECTION FOUND APU TO BE LEAKING FROM CENTER MAST POINT, AND AROUND GENERATOR. IN ORDER TO CLEAR FAULT APU CHANGE IS REQUIRED AS PER TSM 49-00-00-810-921-A. AND AT THIS TIME NO FUMES DETECTED.

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