# SDR MASA2011060202919

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 1, 2011
- Submitted: June 2, 2011
- Operation: Air carrier
- Aircraft: [N991HA](https://openairdocs.org/aircraft/N991HA), registered now
- Make and model: Dhav DHC8202
- Aircraft serial: 431
- Aircraft time: 35,423 hours, 37,042 cycles
- System (JASC): [2150 · Cabin Cooling System](https://openairdocs.org/jasc/2150)
- Part: Shutoff Valve
- Condition: Malfunctioned
- Location: Ac Pack
- Stage of operation: UK
- How discovered: O
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/MASA2011060202919

## Discrepancy

AC WOULD NOT PRESSURZE - RTF.  R2 THE PACK PRSOV.

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