NTSB Identification: CEN14LA256
14 CFR Part 91: General Aviation
Accident occurred Tuesday, April 22, 2014 in Horseshoe Bay, TX
Probable Cause Approval Date: 10/27/2014
Aircraft: CESSNA 421, registration: N866BS
Injuries: 1 Uninjured.
NTSB investigators may not have traveled in support of this investigation and used data provided by various sources to prepare this aircraft accident report.
The pilot reported that when he lowered the landing gear handle, he heard a loud bang. He stated that the nosewheel landing gear did not appear to be extended and that he could not be see it using the nacelle mirror. In addition, the green landing gear position lights did not illuminate. The pilot went through the emergency checklist and followed the manual landing gear extension procedure. During the landing, the landing gear collapsed and the airplane skidded on the runway, resulting in substantial damage to the fuselage. An examination revealed that the drive mechanism for the gearbox motor had failed. An examination of the remaining systems revealed no evidence of mechanical malfunctions or failures that would have precluded normal operation.
The National Transportation Safety Board determines the probable cause(s) of this accident to be: The failure of the drive mechanism for the gearbox motor, which resulted in the gear not extending for the landing.
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