NTSB Identification: DFW08TA128.
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Accident occurred Friday, April 25, 2008 in Baton Rouge, LA
Probable Cause Approval Date: 07/30/2008
Aircraft: Beech C90, registration: N21SP
Injuries: 6 Uninjured.

NTSB investigators may not have traveled in support of this investigation and used data provided by various sources to prepare this public aircraft accident report.

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.

The National Transportation Safety Board determines the probable cause(s) of this accident to be:

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.

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