On May 15, 1985, a Cessna 421B (registration N8083Q) was involved in an aviation accident near Lakeland, FL. Investigators recorded the probable cause as: The outer wheel bearing failed, allowing the left main wheel to separate from the axle. This summary draws on records from the U.S. National Transportation Safety Board (NTSB) historical archive.
During takeoff in Lakeland, FL, the left main wheel separated and struck the horizontal stabilizer. Unaware, the pilot diverted to Tampa after ATC notification, performed low passes, and landed gear up. Bearing failure was found.
Incident Overview
During the takeoff roll at Lakeland, Florida, the left main wheel assembly separated from the aircraft. The loose wheel struck the leading edge of the horizontal stabilizer, inflicting substantial damage. The pilot was initially unaware of the wheel separation and continued the takeoff until notified by air traffic control.
Pilot Actions After Notification
Upon learning of the situation, the pilot diverted the flight to Tampa. To verify the condition of the landing gear, the pilot performed two low passes over the airport. After confirming the left main wheel was missing, the pilot made the decision to land with the landing gear retracted on Runway 27.
Examination and Cause
A subsequent examination of the aircraft revealed that the outer wheel bearing had failed. This bearing failure permitted the left main wheel assembly to separate from the axle during the takeoff.
Probable cause
The outer wheel bearing failed, allowing the left main wheel to separate from the axle.