ALMYRA, AR, USA
N5509X
AERO COMMANDER S2R
THE PLT STATED THAT THE LANDING WAS ROUTINE UNTIL HE USED THE BRAKES. AT THIS POINT THE LEFT WHEEL BRAKE ASSEMBLY CAME APART AND THE ACFT VEERED OUT OF CONTROL OFF THE RIGHT SIDE OF THE RWY AND INTO A DITCH, WHERE THE LEFT MAIN LANDING GEAR COLLAPSED. POST ACCIDENT INSPECTION OF THE BRAKE ASSEMBLY REVEALED A WORN OUT BRAKE PISTON. ACCORDING TO AN A&P/IA, THIS PISTON DESIGN ASSEMBLY IS PRONE TO PREMATURE WEAR.
Source: NTSB Aviation Accident Database
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