# SDR CA041130001

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 28, 2004
- Submitted: January 5, 2005
- Operation: General aviation
- Make and model: Cessna 550
- Registry model: [Cessna 550](https://openairdocs.org/model/cessna-550) (OpenAirDocs)
- Aircraft time: 4,157 hours
- Engine: Pwa JT15D4
- System (JASC): [2130 · Cabin Pressure Control System](https://openairdocs.org/jasc/2130)
- Part: Coupler
- Part number: CM357024
- Condition: Disconnected
- Location: Cabin Pressure
- Stage of operation: IN
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CA041130001

## Discrepancy

(CAN) COUPLING DISCONNECTED WHEN AIRCRAFT WAS AT FLIGHT LEVEL AND AIRCRAFT AT A OPERATING CABIN PRESSURE ALTITUDE. AIRCRAFT CABIN LOST PRESSURIZATION.

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