# SDR DLM88001303

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 9, 2000
- Submitted: July 14, 2000
- Operation: Air carrier
- Aircraft: N927DA
- Make and model: Doug MD-88
- Registry model: [Doug MD-88](https://openairdocs.org/model/mcdonnell-douglas-md-88) (OpenAirDocs)
- Aircraft serial: 49714
- Aircraft time: 32,761 hours, 26,979 cycles
- Engine time: 13,986 hours, 18,443 cycles
- System (JASC): [2130 · Cabin Pressure Control System](https://openairdocs.org/jasc/2130)
- Part: Valve
- Condition: Stuck
- Location: Rt A/C Bay
- Stage of operation: CL
- How discovered: O
- Nature of condition: J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DLM88001303

## Discrepancy

AIRCRAFT ATB, WOULD NOT PRESSURIZE.  LT PACK ON MCO AND RT PACK WOULD NOT HOLD PRESS.  REPLACED PITOT PRESSURE REGULATOR AND FLOW CONTROL VALVE.  PRESSURIZED AIRCRAFT TO 4 PSID WITH LEFT PACK, THEN RIGHT PACK AND BOTH PACKS CHECKED OK.  ALSO, REPLACED LT FLOW CONTORL VALVE TO REMOVE MCO FOR LEFT PACK.

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