# SDR ASAA12510871

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 31, 2011
- Submitted: January 3, 2012
- Operation: Air carrier
- Aircraft: [N569AS](https://openairdocs.org/aircraft/N569AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35184
- Aircraft time: 18,281 hours, 5,955 cycles
- System (JASC): [4920 · APU Core Engine](https://openairdocs.org/jasc/4920)
- Part: Apu
- Part number: 38007021
- Part serial: P7388
- Condition: Failed
- Location: Apu Bay
- Part time: 7,676 hours, 9,137 cycles
- Stage of operation: TX
- How discovered: O
- Nature of condition: O
- Precautionary procedure: D
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA12510871

## Discrepancy

APU QUIT ON PUSHBACK.  REPLACED APU LOW OIL PRESS SWITCH IAW MM49 94 22, NO HELP.  REPLACED APU ECU IAW MM 49 61 12, NO HELP.  RE-INSTALLED ORIGINAL PART.  REMOVED AND REPLACED APU PER T/C 78349010.  OPS CHECK NORMAL.  A/C OK FOR SERVICE.

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