# SDR ASAA2017012119496

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 21, 2017
- Submitted: January 23, 2017
- Operation: Air carrier
- Aircraft: [N471AS](https://openairdocs.org/aircraft/N471AS), registered now
- Make and model: Boeing 737990ER
- Aircraft serial: 41703
- Aircraft time: 9,184 hours, 3,036 cycles
- System (JASC): [8010 · Engine Cranking](https://openairdocs.org/jasc/8010)
- Part: Unknown
- Condition: Malfunctioned
- Location: Nr 1 Engine
- Stage of operation: TX
- How discovered: O
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2017012119496

## Discrepancy

DURING START PROCEDURE FOR ENGINE NUMBER ONE, WE WERE ONLY ABLE TO GET 8% ROTATION. TRIED TWO TIMES WITH AIRCART FOR PRESSURE (APU INOP) GROUNDED - YES. EXERCISED START VALVE. ENGINE START SUCCESSFUL REF AMM 71-00-00. GROUND VERIFICATION SUCCESSFUL.

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