# SDR DALA2018120306970

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 2, 2018
- Submitted: December 3, 2018
- Operation: Air carrier
- Aircraft: N951DL
- Make and model: Doug MD-88
- Registry model: [Doug MD-88](https://openairdocs.org/model/mcdonnell-douglas-md-88) (OpenAirDocs)
- Aircraft serial: 49882
- Aircraft time: 75,178 hours, 55,933 cycles
- System (JASC): [2130 · Cabin Pressure Control System](https://openairdocs.org/jasc/2130)
- Part: Regulator Valve
- Condition: Malfunctioned
- Location: Cabin Pressure
- Stage of operation: DE
- 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/DALA2018120306970

## Discrepancy

SHIP 951- PRESS - FLOW LIGHT IN CRUISE. DURING DESCENT PRESSURIZATION COULD NOT KEEP UP. AT 10,000 FEET AIRCRAFT WAS COMPLETELY DEPRESSURIZED UNTIL LANDING. CORRECTIVE ACTION: REPLACED LEFT PRESSURE REGULATING VALVE AND LEFT A/C PILOT PRESSURE REGULATOR. (LP4865452)

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