Wednesday, May 16, 2018

Beech 1900C, N172GA, registered to and operated by Alpine Aviation: Accident occurred April 29, 2018 at Joe Foss Field Airport (KFSD), Sioux Falls, South Dakota

The National Transportation Safety Board did not travel to the scene of this accident.

Additional Participating Entity:
Federal Aviation Administration / Flight Standards District Office; Salt Lake City, Utah

Aviation Accident Preliminary Report - National Transportation Safety Board:

Aviation Accident Preliminary Report - National Transportation Safety Board 

Location: Sioux Falls, SD
Accident Number: CEN18LA164
Date & Time: 04/29/2018, 2230 CDT
Registration: N172GA
Aircraft: BEECH 1900C
Injuries: 1 None
Flight Conducted Under: Part 135: Air Taxi & Commuter - Non-scheduled

On April 29, 2018, about 2230 central daylight time, the right main landing gear drag brace on a Beech 1900 C airplane, N172GA, disconnected from the wing forward attach point, the strut pivoted aft, and the landing gear collapsed as the airplane started to taxi for takeoff at Joe Foss Field (FSD), Sioux Falls, South Dakota. The pilot not injured. The airplane was substantially damaged. The airplane was registered to and operated by Alpine Aviation, Provo, Utah, under the provisions of Title 14 Code of Federal Regulations Part 135 as a non-scheduled domestic cargo flight. Visual meteorological conditions prevailed at the airport at the time of the accident, and the flight was being operated on an instrument flight rules flight plan.

Post-accident examination of the airplane revealed the aft spar lower spar cap had sustained damage from the gear collapse. The cap was dented and deformed up to 0.090". Pitting corrosion was also found on the spar cap. 

Aircraft and Owner/Operator Information

Aircraft Manufacturer: BEECH
Registration: N172GA
Model/Series: 1900C
Aircraft Category: Airplane
Amateur Built: 
Operator: Alpine Aviation, Inc.
Operating Certificate(s) Held: On-demand Air Taxi (135)
Operator Does Business As:
Operator Designator Code: TIMA 

Meteorological Information and Flight Plan

Conditions at Accident Site:
Condition of Light:
Observation Facility, Elevation:
Observation Time:
Distance from Accident Site:
Temperature/Dew Point:
Lowest Cloud Condition:
Wind Speed/Gusts, Direction:
Lowest Ceiling:
Altimeter Setting:
Type of Flight Plan Filed: IFR
Departure Point: Sioux Falls, SD (FSD)
Destination: Rapid City, SD (RAP) 

Wreckage and Impact Information

Crew Injuries: 1 None
Aircraft Damage: Substantial
Passenger Injuries: N/A
Aircraft Fire: None
Ground Injuries: N/A
Aircraft Explosion: None
Total Injuries: 1 None
Latitude, Longitude:  43.581944, -96.741944 (est)

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