# SDR DLM90071025

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 5, 2007
- Submitted: August 8, 2007
- Operation: Air carrier
- Aircraft: N906DA
- Make and model: Doug MD-90-30
- Registry model: [Doug MD-90-30](https://openairdocs.org/model/mcdonnell-douglas-md-90-30) (OpenAirDocs)
- Aircraft serial: 53386
- Aircraft time: 33,168 hours, 17,504 cycles
- System (JASC): [2150 · Cabin Cooling System](https://openairdocs.org/jasc/2150)
- Part: Control Valve
- Part number: 3965821
- Part serial: 127
- Condition: Inoperative
- Location: Lt A/C Pack
- Stage of operation: CL
- How discovered: O
- Nature of condition: G
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DLM90071025

## Discrepancy

LEFT PACK COULD NOT PRESSURIZE A/C BECAUSE TO FLOW CONTROL VALVE WAS INOP AND WOULD NOT OPEN BEYOND 1/4 OF A INCH.

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