Hawker Beechcraft King Air C90, Baton Rouge, La., April 25, 2008–Structural failure of the right main landing gear torque knee caused the King Air’s gear to collapse on landing at Baton Rouge Metropolitan Airport, the NTSB determined. Failure to inspect the torque knee at the designated 1,000-hour interval, as required by AD 2002-01-10, was a contributing factor. The King Air was owned and maintained by Southwest Aviation Specialties and operated by the U.S. Marine Corps. No one was injured in the incident.