STOCKBRIDGE, GA, USA
N9871C
NORTH AMERICAN T-6G
THE AIRPLANE LANDED WITH THE LEFT WHEEL LOCKED, AND SUBSEQUENTLY NOSED OVER DURING THE LDG ROLL. POST-CRASH EXAM REVEALED THAT THE LEFT WHEEL COULD NOT BE ROTATED IN THE FWD DIRECTION BY HAND, AND THAT IT COULD BE ROTATED AFT BY HAND ONLY WITH CONSIDERABLE EFFORT. THE WHEEL REMAINED LOCKED IN THE FWD DIRECTION AFTER THE HYD BRAKE LINE WAS DISCONNECTED FROM THE LEFT BRAKE ASSY. DISASSEMBLY OF THE BRAKE ASSY REVEALED NO EVIDENCE OF MECHANICAL FAILURE OR MALFUNCTION. THE PLT INDICATED THAT BRAKE FLUID HAD LEAKED ONTO THE BRAKE SHOE CAUSING IT TO EXPAND AND LOCK THE WHEEL.
Source: NTSB Aviation Accident Database
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