# SDR MYWA120041

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 5, 2012
- Submitted: April 10, 2012
- Operation: Air carrier
- Aircraft: [N734MA](https://openairdocs.org/aircraft/N734MA), registered now
- Make and model: Boeing 737-8Q8
- Registry model: [Boeing 737-8Q8](https://openairdocs.org/model/boeing-737-8q8) (OpenAirDocs)
- Aircraft serial: 30039
- Aircraft time: 29,994 hours, 10,895 cycles
- System (JASC): [3610 · Pneumatic Distribution System](https://openairdocs.org/jasc/3610)
- Part: Valve
- Condition: Failed
- Location: Precooler
- 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/MYWA120041

## Discrepancy

PRECOOLER VALVE FAILED OPS CHECK,  DURING NR 2 ENG HEALTH CHECK (BLEED SYS).  REMOVED & REPLACED NR 2 ENGINE PRE-COOLER VALVE AS PER AMM 36-12-02, OPS CHECKED OK.  NO LEAKS NOTED AT THIS TIME.

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