# SDR ASAA2016011214757

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 12, 2016
- Submitted: January 14, 2016
- Operation: Air carrier
- Aircraft: [N536AS](https://openairdocs.org/aircraft/N536AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35203
- Aircraft time: 15,693 hours, 4,590 cycles
- System (JASC): [4930 · APU Engine Fuel and Control](https://openairdocs.org/jasc/4930)
- Part: Fcu
- Part number: 4419215
- Part serial: CUC17889
- Condition: Failed
- Location: Apu
- Part time: 4,049 hours, 7,038 cycles
- Stage of operation: CR
- How discovered: O
- Nature of condition: J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2016011214757

## Discrepancy

APU FAILED CSS TEST, START ATTEMPS AT 400, 360, 320 FAULT LIGHT ON FOR 5 MIN AFTER EA START.  ACFT GROUNDED.  R & R APU FCU REF AMM 49-31-11.  OPS AND LEAK CK GOOD.

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