Probable cause
Failure of the right main landing gear drag brace bolt for reasons that could not be determined based on the available information.
NTSB analysis
As the twin-engine, turbopropeller-equipped airplane started to taxi for takeoff, the right main landing gear collapsed, deforming the aft center wing lower spar cap. A postaccident examination of the airplane revealed that the right main landing gear drag brace bolt failed at the wing forward attach point. As the airplane moved forward, the strut pivoted aft, collapsing the landing gear. The drag brace bolt was not retained, and the reason for its failure could not be determined based on the available information.
Text from the NTSB. Open the NTSB docket for CEN18LA164 for the full record.
Event
- Date
- Apr 30, 2018
- Type
- Accident
- Place
- Sioux Falls, South Dakota
- Nearest airport
- Joe Foss Field (FSD)
- Highest injury
- None
- Weather
- Visual (VMC)
- Light
- Night
Beech 1900C
- N-number
- N172GA
- Category
- Airplane
- Year built
- 1982
- Damage
- Substantial
- Operating rule
- Part 135 (charter and commuter)
From the NTSB aviation accident database: N-registered aircraft, events since 2008, data through Oct 28, 2026. The file is published monthly, so the latest weeks are incomplete and recent records can change. The official source is the NTSB aviation investigation search. CheckAero is independent and not affiliated with the NTSB.