# SDR ASAA2013100996145

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 9, 2013
- Submitted: October 11, 2013
- Operation: Air carrier
- Aircraft: [N559AS](https://openairdocs.org/aircraft/N559AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35178
- Aircraft time: 26,430 hours, 7,952 cycles
- System (JASC): [4930 · APU Engine Fuel and Control](https://openairdocs.org/jasc/4930)
- Part: Fcu
- Part number: 4419215
- Part serial: CUC14311
- Condition: Leaking
- Location: Apu
- Part time: 8,397 hours, 8,181 cycles
- Stage of operation: IN
- How discovered: V
- Nature of condition: K
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2013100996145

## Discrepancy

APU LEAKING FUEL FROM FUEL DRAIN MAST.  ACFT GROUNDED.  REPLACED APU FCU,  LEAK & OPS NORMAL IAW MM 49-31-11.

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