# SDR DL764071084

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 15, 2007
- Submitted: August 16, 2007
- Operation: Air carrier
- Aircraft: [N844MH](https://openairdocs.org/aircraft/N844MH), registered now
- Make and model: Boeing 767432ER
- Aircraft serial: 29717
- Aircraft time: 20,232 hours, 5,867 cycles
- System (JASC): [2150 · Cabin Cooling System](https://openairdocs.org/jasc/2150)
- Part: Isolation Valve
- Part number: 2780539103
- Part serial: 2883
- Condition: Unserviceable
- Location: Lt Acm
- 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/DL764071084

## Discrepancy

LEFT ISOLATION VALVE WILL NOT OPEN.  REPLACED LEFT ISOLATION VALVE PER AMM.  VALVE OPS CKS GOOD MFG P/N 2780539-103.

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