# SDR ASAA0954495

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 24, 2009
- Submitted: February 26, 2009
- Operation: Air carrier
- Aircraft: [N557AS](https://openairdocs.org/aircraft/N557AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35176
- Aircraft time: 10,443 hours, 3,054 cycles
- System (JASC): [8012 · Engine Start Valves/Controls](https://openairdocs.org/jasc/8012)
- Part: Start Valve
- Part number: 32896302
- Part serial: 10623
- Condition: Frozen
- Location: Nr 1 Engine
- Part time: 6,021 hours, 1,784 cycles
- Stage of operation: TX
- How discovered: O
- Nature of condition: O
- Precautionary procedure: D
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA0954495

## Discrepancy

NO N2 ROTATION ON NR 1 ENG WHEN START SWITCH MOVED TO GROUND.  EGT RISE AND DUCT PRESSURE RISE.  FOUND NR 1 ENG START VALVE FROZEN.  CLOSED MANUALLY EXERCISED START VALVE MOTORED NR 1 ENG, OPS NORMAL REF MM 71 00 00 800 811 FOO.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.