# SDR ASAA2015021010595

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 10, 2015
- Submitted: February 11, 2015
- Operation: Air carrier
- Aircraft: [N530AS](https://openairdocs.org/aircraft/N530AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 36578
- Aircraft time: 19,081 hours, 5,741 cycles
- System (JASC): [4900 · Airborne Auxiliary Power Unit (APU) System](https://openairdocs.org/jasc/4900)
- Part: Fault Code
- Condition: Activated
- Location: Apu
- Part time: 4,956 hours, 8,501 cycles
- Stage of operation: IN
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2015021010595

## Discrepancy

APU HAS HISTORY OF FAULT LIGHT ILLUMINATING DURING CSS.  ACFT GROUNDED.  R & R APU IAW TC 78349010.  OPS TEST GOOD.

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