Probable cause
Structural failure of the right main landing gear torque knee. A contributing factor was the failure to inspect the torque knee at the designated interval.
NTSB analysis
The private pilot was landing at the airport when the airplane's right main landing gear collapsed. A preexisting fracture with corrosion was discovered on the right main landing gear torque knee. The main landing gear upper and lower torque knees require an inspection every 1,000 hours by airworthiness directive. Compliance with the airworthiness directive was not maintained and the airplane was allowed to operate without an inspection.
Text from the NTSB. Open the NTSB docket for DFW08TA128 for the full record.
Event
- Date
- Apr 25, 2008
- Type
- Accident
- Place
- Baton Rouge, Louisiana
- Nearest airport
- Baton Rouge Metropolitan, Ryan (BTR)
- Highest injury
- None
- Weather
- Visual (VMC)
- Light
- Day
Beech C90
- N-number
- N21SP
- Category
- Airplane
- Damage
- Substantial
- Operating rule
- Part 91 (general aviation)
- Purpose of flight
- Personal
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.