# SDR CA020524001

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 22, 2002
- Submitted: June 13, 2002
- Operation: Air carrier
- Make and model: Cessna 550
- Registry model: [Cessna 550](https://openairdocs.org/model/cessna-550) (OpenAirDocs)
- Aircraft time: 4,498 hours
- Engine: Pwa JT15D4
- System (JASC): [2130 · Cabin Pressure Control System](https://openairdocs.org/jasc/2130)
- Part: Duct
- Part number: 99120264
- Condition: Disconnected
- Location: Acm
- Component: Acm, Hamltn, 738834
- Stage of operation: CR
- How discovered: O
- Nature of condition: J
- Precautionary procedure: B
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CA020524001

## Discrepancy

(CAN) AIRCRAFT AT 28,000 FT HAD LOSS OF CABIN PRESSURE CONTROL. AIRCRAFT EXECUTED EMERGENCY DESCENT TO 10,000 FT PROCEEDING TO DESTINATION WITHOUT FURTHER INCIDENT. MAINTENANCE INVESTIGATION REVEALED ACM FLEX DUCT HAD UNCOUPLED FROM MATING TUBE,  SUSPECTED CAUSE OF THE DECOUPLING WAS A LOOSE GEAR CLAMP.

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