# SDR ASAA2013080695742

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 6, 2013
- Submitted: August 9, 2013
- Operation: Air carrier
- Aircraft: [N558AS](https://openairdocs.org/aircraft/N558AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35177
- Aircraft time: 27,360 hours, 8,090 cycles
- System (JASC): [4930 · APU Engine Fuel and Control](https://openairdocs.org/jasc/4930)
- Part: Fuel Control
- Part number: 4419214
- Part serial: CUC12377
- Condition: Faulted
- Location: Apu
- Part time: 6,064 hours, 7,674 cycles
- Stage of operation: IN
- How discovered: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2013080695742

## Discrepancy

APU BITE CHECK,  LOGGED OVERTEMP SHUTDOWN MESSAGE 49-31016 AND FCU RESOLVER CIRCUIT SHOWS BAD 49-31175.  ACFT GROUNDED.  REPLACED THE FCU IAW MM 49-31-11, LEAK AND OPS CHECKED GOOD. APU BITE CHECKED GOOD IAW MM 49-61-00.

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