# SDR 2008UALA03169

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 2, 2008
- Submitted: July 15, 2008
- Operation: Air carrier
- Aircraft: [N646UA](https://openairdocs.org/aircraft/N646UA), registered now
- Make and model: Boeing 767322
- Aircraft serial: 25283
- Aircraft time: 71,109 hours, 11,652 cycles
- Engine: Pwa PW4060
- System (JASC): [2120 · Air Distribution System](https://openairdocs.org/jasc/2120)
- Part: Valve
- Part number: 420365
- Part serial: UNK
- Condition: Faulty
- Location: E/E Bay Cooling
- Stage of operation: CL
- How discovered: O
- Nature of condition: J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/2008UALA03169

## Discrepancy

FWD EQUIPMENT OVERHEAT EICAS MESSAGE CAME ON PASSING 10000 FEET AND EXTINGUISHED PASSING 18000 FT.  SUSPECT FAULTY COOLING OVERRIDE VALVE.  REPLACED FWD E&E COOLING OVERRIDE VALVE PER MM 21-58-20.  OPS CHECK OK.  AC OK FOR SERVICE.

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