# SDR CALA2013102392310

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 22, 2013
- Submitted: October 25, 2013
- Operation: Air carrier
- Aircraft: [N654UA](https://openairdocs.org/aircraft/N654UA), registered now
- Make and model: Boeing 767322
- Aircraft serial: 25392
- Aircraft time: 89,625 hours, 14,314 cycles
- Engine: Pwa PW4060
- System (JASC): [7520 · Engine Cooling System](https://openairdocs.org/jasc/7520)
- Part: Valve
- Condition: Failed
- Location: Lt Engine
- Stage of operation: TX
- 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/CALA2013102392310

## Discrepancy

CREW REPORT LT ENG AO VLV STATUS MESSAGE WILL NOT CLEAR.  DEACTIVATED AO COOLER VLV IN THE OPEN POSITION IAW MM 75-21-2 MEL 7521G, WORK WITH DF723.

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