PONTIAC, MI, USA
N8394D
PIPER PA-28-161
THE INSTRUCTOR (CFI) AND DUAL INSTRUMENT STUDENT WERE TAXIING FROM THE RAMP TO THE ACTIVE RUNWAY WHEN THE LEFT MAIN LANDING GEAR COLLAPSED. POST-ACCIDENT INVESTIGATION REVEALED THAT THE LANDING GEAR BOLTS ON THE LEFT GEAR HAD FAILED. THE CFI REPORTED THAT THEY WERE TAXIING STRAIGHT AHEAD ON A SMOOTH, PAVED SURFACE, AND MOVING AT A NORMAL TAXI RATE WHEN THE ACCIDENT OCCURRED. THE FAILURES APPEARED TO BE DUE TO OVERLOAD; THERE WAS NO REPORT OF A PREVIOUS HARD LANDING IN THE ACCIDENT AIRCRAFT.
OVERLOAD FAILURE OF THE LEFT MAIN LANDING GEAR ATTACH BOLTS FOR AN UNDETERMINED REASON.
Source: NTSB Aviation Accident Database
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