Narrative:
The pilot was executing a full-stop landing, prior to which he had confirmed the illumination of the three green "gear-down" lights. Although the touchdown was uneventful, during the landing roll the right main landing gear actuator shaft retracted into its housing, resulting in the retraction of the right main landing gear into its wheel well. The airplane then departed the runway and impacted the adjacent runway lights. A series of postaccident inspections and tests were unable to determine what anomaly or malfunction initiated the retraction of the actuator shaft.
Probable Cause: The uncommanded retraction of the right main landing gear hydraulic actuator strut for undetermined reasons.
Runway mishap
| Status: | Accident investigation report completed and information captured |
| Date: | Sunday 29 March 2009 |
| Time: | 15:35 |
| Type: |  Cessna 550 Citation II |
| Operator: | Fritzi Jet LLC |
| Registration: | N44FR |
| MSN: | 550-0334 |
| First flight: | 1981 |
| Total airframe hrs: | 7709 |
| Engines: | 2 Pratt & Whitney Canada JT15D-4 |
| Crew: | Fatalities: 0 / Occupants: |
| Passengers: | Fatalities: 0 / Occupants: |
| Total: | Fatalities: 0 / Occupants: 3 |
| Aircraft damage: | Substantial |
| Aircraft fate: | Repaired |
| Location: | Salt Lake City International Airport, UT (SLC) ( United States of America)
|
| Phase: | Landing (LDG) |
| Nature: | Executive |
| Departure airport: | Great Bend Airport, KS (GBD/KGBD), United States of America |
| Salt Lake City International Airport, UT (SLC/KSLC), United States of America |
The pilot was executing a full-stop landing, prior to which he had confirmed the illumination of the three green "gear-down" lights. Although the touchdown was uneventful, during the landing roll the right main landing gear actuator shaft retracted into its housing, resulting in the retraction of the right main landing gear into its wheel well. The airplane then departed the runway and impacted the adjacent runway lights. A series of postaccident inspections and tests were unable to determine what anomaly or malfunction initiated the retraction of the actuator shaft.
Probable Cause:
Probable Cause: The uncommanded retraction of the right main landing gear hydraulic actuator strut for undetermined reasons.
Accident investigation:
 |
|
Classification:
Landing gear collapseRunway mishap
Photos
Map
This map shows the airport of departure and the intended destination of the flight. The line between the airports does not display the exact flight path.
Distance from Great Bend Airport, KS to Salt Lake City International Airport, UT as the crow flies is 1148 km (717 miles).
Accident location: Exact; deduced from official accident report.
Distance from Great Bend Airport, KS to Salt Lake City International Airport, UT as the crow flies is 1148 km (717 miles).
Accident location: Exact; deduced from official accident report.
This information is not presented as the Flight Safety Foundation or the Aviation Safety Network’s opinion as to the cause of the accident. It is preliminary and is based on the facts as they are known at this time.
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