# SDR IMJ2004F00001

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 22, 2003
- Submitted: February 10, 2004
- Operation: Air carrier
- Aircraft: N550KM
- Make and model: Cessna S550
- Registry model: [Cessna S550](https://openairdocs.org/model/cessna-s550) (OpenAirDocs)
- Aircraft serial: S5500081
- Engine: Pwa JT15D4
- System (JASC): [2131 · Cabin Pressure Controller](https://openairdocs.org/jasc/2131)
- Part: Controller
- Part number: 13035616
- Part serial: 19239
- Condition: Failed
- Location: Cabin Pressure
- Stage of operation: CR
- 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/IMJ2004F00001

## Discrepancy

CABIN LOST PRESSURIZATION AT FL27 IN CRUISE WHEN CONTROLLER WAS ADJUSTED FOR DESCENT.

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