# SDR UALA2013012500461

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 25, 2013
- Submitted: January 29, 2013
- Operation: Air carrier
- Aircraft: [N652UA](https://openairdocs.org/aircraft/N652UA), registered now
- Make and model: Boeing 767322
- Aircraft serial: 25390
- Aircraft time: 88,972 hours, 14,152 cycles
- Engine: Pwa PW4060
- System (JASC): [8012 · Engine Start Valves/Controls](https://openairdocs.org/jasc/8012)
- Part: Start Valve
- Part number: 3B413B
- Part serial: 1157
- Condition: Faulty
- Location: Lt 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/UALA2013012500461

## Discrepancy

WHEN GROUND SELECTED FOR LT ENGINE START,  CIRCUIT BREAKER D28 AND D19 TRIPPED.  REPLACED LEFT ENGINE START VALVE.

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