# SDR UALA2011011300211

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 12, 2011
- Submitted: February 15, 2011
- Operation: Air carrier
- Aircraft: N548UA
- Make and model: Boeing 757222
- Aircraft serial: 25396
- Aircraft time: 72,545 hours, 20,954 cycles
- Engine: Pwa PW2037
- System (JASC): [8012 · Engine Start Valves/Controls](https://openairdocs.org/jasc/8012)
- Part: Start Valve
- Part number: 8113901
- Part serial: 198
- Condition: Inoperative
- Location: Nr 2 Engine
- 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/UALA2011011300211

## Discrepancy

CREW REPORTED NR 2 ENG DOES NOT ROTATE WHEN START VALVE IS OPENED.  START VALVE LIGHT CAME ON AND WENT OUT, BUT NO ROTATION.  OPERATED START VALVE MANUALLY.  REPLACED START VALVE.

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