# SDR MWEA060219

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 29, 2006
- Submitted: October 3, 2006
- Operation: Air carrier
- Aircraft: N813ME
- Make and model: Doug DC-9-81(MD-81)
- Registry model: [Doug DC-9-81(MD-81)](https://openairdocs.org/model/mcdonnell-douglas-dc-9-81-md-81) (OpenAirDocs)
- Aircraft serial: 48007
- Aircraft time: 50,556 hours, 47,917 cycles
- System (JASC): [2130 · Cabin Pressure Control System](https://openairdocs.org/jasc/2130)
- Part: Pressure Valve
- Part number: 39271411
- Condition: Inoperative
- Location: Cabin Pressure
- 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/MWEA060219

## Discrepancy

AIR CONDITIONING PACK WOULD NOT MAINTAIN THE CABIN AT FLIGHT LEVEL 20 THOUSAND FEET.  REMOVED AND REPLACED PRESSURE REGULATOR VALVE.

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