# SDR UALA2011013100513

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 30, 2011
- Submitted: February 21, 2011
- Operation: Air carrier
- Aircraft: [N544UA](https://openairdocs.org/aircraft/N544UA), registered now
- Make and model: Boeing 757222
- Aircraft serial: 25322
- Aircraft time: 72,367 hours, 20,837 cycles
- Engine: Pwa PW2040
- System (JASC): [8012 · Engine Start Valves/Controls](https://openairdocs.org/jasc/8012)
- Part: Start Valve
- Part number: 8113901
- Part serial: 247
- Condition: Faulty
- Location: Lt Engine
- Stage of operation: IN
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UALA2011013100513

## Discrepancy

NR N2 -ROTATION- ON ENG START LT ENG START.  NR1 ENGINE STARTED MANUALLY, NO TIME TO TROUBLESHOOT.  START VALVE HAS BEEN REPLACED.  PLEASE SEE SVC TIP AND FIM TO TROUBLESHOOT.  T/S PER FIM, NO FAULTS.  CHECKED VOLTAGE TO START VALVE. EXERCISED START SWITCH, ALL OK.  REPLACED START VALVE MM. OPS NORMAL.

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