# SDR MYWA110022

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 10, 2011
- Submitted: February 17, 2011
- Operation: Air carrier
- Aircraft: [N738MA](https://openairdocs.org/aircraft/N738MA), registered now
- Make and model: Boeing 737-8Q8
- Registry model: [Boeing 737-8Q8](https://openairdocs.org/model/boeing-737-8q8) (OpenAirDocs)
- Aircraft serial: 32799
- Aircraft time: 15,762 hours, 6,081 cycles
- System (JASC): [3610 · Pneumatic Distribution System](https://openairdocs.org/jasc/3610)
- Part: Control Valve
- Condition: Failed
- Location: Bleed Air Sys
- Stage of operation: IN
- How discovered: C
- Nature of condition: L
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/MYWA110022

## Discrepancy

ETOPS SIGNIFICANT SYSTEM:  NR 2 ENGINE PRECOOLER CONTROL VALVE AND WING TAI SOLENOID FAIL TEST.  REPLACED PRECOOLER CONTROL VALVE.

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