MIAMI, FL, USA
N81MA
GLOBE GC1B
THE ACFT GROUNDLOOPED AND COLLAPSED THE LANDING GEAR AFTER THE RT BRAKE FAILED DURING TAXI FROM LANDING. THE PILOT SAID HE HAD INSTALLED NEW BRAKE PADS AND HAD SPENT TIME TAXIING TO WEAR THEM IN. AFTER COMPLETING ONE TAKEOFF AND LANDING THEACFT WAS BEING TAXIED TO THE RAMP WHEN THE RT BRAKE LOST PRESSURE. THE PILOT STATES THAT THE CAUSE OF THE BRAKE FAILURE WAS THE MASTER CYLINDER. THE LANDING GEAR SHOULD HAVE STOOD THE LOAD OF A GROUND LOOP. THE FAILURE WAS THE RESULT OF REPLACEMENT SIDE BRACES WHICH APPEAR TO BE HOME MADE. THE ORIGINAL BRACES WERE SOLID ONE PIECE CASTINGS. THE BRACES IN USE WERE TWO PIECES WELDED TOGETHER. THE BRACES FAILED AT THE WELDS. THE PILOT DOES NOT KNOW THE ORIGIN OF THE BRACES. THEY WERE ON THE ACFT WHEN HE BOUGHT IT. THE ACFT IS 1946 VINTAGE AND MANY PARTS ARE NO LONGER AVAILABLE.
Source: NTSB Aviation Accident Database
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