Aviation Accident Summaries

Aviation Accident Summary DEN89LA210

BUENA VISTA, CO, USA

Aircraft #1

N3458

LET L-13

Analysis

THE PLT WAS GIVING A PASSENGER A GLIDER RIDE. THE FLT WAS LAUNCHED FROM A 9000 FT RWY (RWY 15) WITH AN AUTO TOW IN WIND THAT WAS FROM 300 DEG AT 4 KTS. A WITNESS RPRTD THE INITIAL CLIMB AFTER TAKEOFF SEEMED NORMAL UNTIL THE PLT RELEASED THE GLIDER AT ABOUT 300 FT AGL. THE PLT THEN BEGAN A LEVEL LEFT TURN WITH INCREASING BANK. SUBSEQUENTLY, THE GLIDER PITCHED DOWN & CRASHED AFTER COMPLETING ABOUT 300 DEG OF TURN. IMPACT OCCURRED ON AN INCLINED BANK AS THE GLIDER WAS IN AN EXTREME NOSE DOWN ATTITUDE.

Probable Cause and Findings

A PREMATURE RELEASE OF THE GLIDER TOW LINE BY THE GLIDER PILOT AND HIS FAILURE TO MAINTAIN SUFFICIENT AIRSPEED, WHILE MANEUVERING BACK TOWARD THE RUNWAY, WHICH RESULTED IN AN INADVERTENT STALL.

 

Source: NTSB Aviation Accident Database

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