# SDR ASAA2023102045780

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 20, 2023
- Submitted: October 23, 2023
- Operation: Air carrier
- Aircraft: [N589AS](https://openairdocs.org/aircraft/N589AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35686
- Aircraft time: 57,381 hours, 17,002 cycles
- System (JASC): [4900 · Airborne Auxiliary Power Unit (APU) System](https://openairdocs.org/jasc/4900)
- Part: Pushrod
- Condition: Broken
- Location: Apu Inlet Door
- Stage of operation: NR
- How discovered: O
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2023102045780

## Discrepancy

APU FAIL TO START 3X. GROUNDED - YES. INLET DOOR SHUTDOWN F/C 49-15004 APU DEFERRED PER MEL 49-1B. FOLLOWING B737-800 FIM 49-10 TASK 806 WITH APU SWITCH SET TO "ON" POSITION, DOOR DOES NOT MOVE. APU INLET DOOR REMOVED & REPLACED DUE TO BROKEN PUSHRODS. APU OP CHECKED GOOD.

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