# Incident 20091003018709I: Bombar CL6002D24, Salt Lake City, UT, October 3, 2009

- Type: FAA incident report (Accident/Incident Data System), as reported
- Date: October 3, 2009, 11:22 local time
- Place: Salt Lake City, UT
- Airport: Salt Lake City International
- Damage: No damage
- Phase of flight: Climb
- Operating rules: Air carrier (Part 121)
- Operator: SWIA
- Location: 40.7884° N, 111.9778° W: Placed by OpenAirDocs at SALT LAKE CITY INTL (SLC), within about a mile (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=40.7884&lon=-111.9778&mi=10
- Aircraft: N805SK, registered now (https://openairdocs.org/aircraft/N805SK) (OpenAirDocs)
- Registry model: Bombardier CL-600-2D24 (registry code 1390016, https://openairdocs.org/model/bombardier-cl-600-2d24) (OpenAirDocs)
- Registry engine: GE CF34-8C5 (registry code 30050, https://openairdocs.org/engine/ge-cf34-8c5) (OpenAirDocs)
- Reported make and model: BOMBAR CL6002D24
- People aboard: 81
- Fatal injuries: 0
- Other injuries: 0
- Pilot flight hours: 0 total, 0 in this make and model, 0 in the last 90 days
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/20091003018709I

## Narrative

As the FAA filed it, in capitals; the FAA replaces private details with ^PRIVACY DATA OMITTED^.

SKYWEST AIRLINES FLIGHT 4666 OPERATING FROM SALT LAKE CITY TO SPOKANE ON OCTOBER 3, 2009 DECLARED AN EMERGENCY AT 26,000 FT AND RETURNED TO SALT LAKE CITY.  THE CREW REPORTED A CARGO DOOR UNSAFE MESSAGE, A LOSS OF CABIN PRESSURE AND THE INABILITY TO CONTROL THE PRESSURIZATOIN RATE.  THE CREW EXECUTED AND EMERGENCY DESCENT THROUGH 15,000 FT.  THE CARGO DOOR SEALED AND THE PRESSURIZATION RATE WAS CONTROLLED.  THE AIRCRAFT LANDED WITHOUT FURTHER INCIDENT.  THE GROUND CREW NOTED THAT  THE AFT CARGO DOOR WAS CLOSED WHEN THE AIRCRAFT RETURNED TO THE GATE.  MAINTENANCE TECHNICIANS INSPECTED THE CARGO DOOR: THE SEAL AND THE SURROUND STRUCTURE.  THERE WERE NO DISCREPANCIES NOTED.  THE TECHNICIANS PERFORMED THE FAULT ISOLATION MANUAL PROCEDURES FOR THE CARGO DOOR MESSAGE AND DETERMINED THAT THE DOOR PROXIMITY SENSOR HARNESS WAS FAULTY.  THE HARNESS WAS REPLACED AND THE PRESSURIZATION CHECK OF THE DOOR WAS PERFORMED.  THERE IS NO HISTORY OF PRESSURIZATION PROBLEMS OR CARGO DOOR MESSAGE FOR THIS AIRCRAFT.  A FUNCTIONAL CHECK FLIGHT WAS PERFORMED ON OCTOBER 4, 2009 AND ALL SYSTEMS CHECKED NORMAL.  THE AIRCRAFT HAS BEEN OPERATING FOR SEVERAL DAYS WITHOUT ANY DISCREPANCIES NOTED WITH THE CARGO DOOR OF THE PRESSURIZATION SYSTEM.

From the FAA Accident/Incident Data System. Reports are matched to registry aircraft by N-number and event date, checked against the reported make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. For accidents, the NTSB's own investigation is the fuller record.

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