# SDR CA020618005

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 13, 2002
- Submitted: July 30, 2002
- Operation: General aviation
- Make and model: Beech C90A
- Registry model: [Beech C90A](https://openairdocs.org/model/beech-c90a) (OpenAirDocs)
- Aircraft time: 2,686 hours
- Engine: Pwa PT6A21
- System (JASC): [2133 · Pressure Regulator/Outflow Valve](https://openairdocs.org/jasc/2133)
- Part: Solenoid Valve
- Condition: Failed
- Location: Cabin Pressure
- Stage of operation: TO
- How discovered: O
- Nature of condition: J
- Precautionary procedure: C
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CA020618005

## Discrepancy

(CAN) A/C FAILED TO PRESSURIZE AFTER TAKEOFF.  UPON RETURN TO BASE THE  A/C STILL WOULD NOT PRESSURIZE ON "TEST" POSITION. MAINTENANCE DETERMINED THAT THE CABIN PRESSURE SAFTEY VALVE SOLENOID (DESIGNATOR E 105) WAS FAILED OPEN, NOT ALLOWING THE SAFTEY VALVE TO CLOSE AFTER TAKEOFF. THE SOLENOID VALVE WAS REPLACED AND THE A/C WAS TEST FLOWN WITH PRESURRIZATION SERVICEABLE.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.