# SDR ASAA1057673

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 9, 2010
- Submitted: April 12, 2010
- Operation: Air carrier
- Aircraft: [N587AS](https://openairdocs.org/aircraft/N587AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35684
- Aircraft time: 9,409 hours, 2,713 cycles
- System (JASC): [2421 · AC Generator-Alternator](https://openairdocs.org/jasc/2421)
- Part: Generator
- Part number: 28B5457
- Part serial: 87B0970
- Condition: Malfunctioned
- Location: Apu
- Part time: 9,409 hours, 2,713 cycles
- Stage of operation: TX
- How discovered: O
- Nature of condition: J
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA1057673

## Discrepancy

APU FAULT LIGHT ON APU START LIGHT EXT AFTER 4 MIN.  FAULT AGAIN ON 2ND ATTEMPT.  REMOVED & REPLACED APU GENERATOR IAW AMM REF 49 41 21 PG BLOCK 401.  OPS CHECK NORMAL PER AMM REF 49 11 00, APU OPERATIONAL TEST.

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