# SDR GLBA96255

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 30, 1996
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: N141UE
- Make and model: Beech 1900C
- Registry model: [Beech 1900C](https://openairdocs.org/model/beech-1900c) (OpenAirDocs)
- Aircraft serial: UC141
- System (JASC): [2130 · Cabin Pressure Control System](https://openairdocs.org/jasc/2130)
- Part: Prsov
- Part number: 11438004221
- Condition: Malfunctions
- Location: Lt Engine
- Stage of operation: CR
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/GLBA96255

## Discrepancy

CIU - LEFT AND RIGHT ENVIRONMENTAL FAIL ANNUNCIATOR IN FLIGHT.  MAINTENANCE SWAPPED PRSOV VALVES FOR TROUBLESHOOTING.  RIGHT SIDE OPERATES NORMALLY.  DEFERRED LEFT SIDE AND LATER REPLACED LEFT PRSOV.  (M)

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