# SDR ASAA2023072944314

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 29, 2023
- Submitted: July 31, 2023
- Operation: Air carrier
- Aircraft: [N962AK](https://openairdocs.org/aircraft/N962AK), registered now
- Make and model: Boeing 737-9
- Registry model: [Boeing 737-9](https://openairdocs.org/model/boeing-737-9) (OpenAirDocs)
- Aircraft serial: 44078
- Aircraft time: 1,248 hours, 368 cycles
- System (JASC): [4920 · APU Core Engine](https://openairdocs.org/jasc/4920)
- Part: Unknown
- Part number: UNKNOWN
- Condition: Unknown
- Location: Unknown
- Stage of operation: TX
- How discovered: V
- Nature of condition: J
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2023072944314

## Discrepancy

ON TAXI TO GATE APU FAULT LIGHT ILLUMINATED WHEN ATTEMPTING TO START APU. GROUNDED - YES. UPON ARRIVING, PERFORMED APU BITE CHECK REF B737-9 AMM 49-61-00. FOUND FAULT CODE 49-41181. PERFORMED B737-9 IFIM TASK 49-40-00-810-808 UP TO STEP C.4(A)(5). FAULT 49-41181 NOT ACTIVE. STARTED APU 3 TIMES WITH NO ISSUES.

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