NTSB Identification: LAX82FJA05
14 CFR Part 91: General Aviation
Accident occurred Friday, July 02, 1982 in DILLINGHAM, HI
Probable Cause Approval Date: 07/02/1983
Aircraft: SCHWEIZER SGS 1-34, registration: N7657
Injuries: 1 Uninjured.

NTSB investigators either traveled in support of this investigation or conducted a significant amount of investigative work without any travel, and used data obtained from various sources to prepare this aircraft accident report.

THE GLIDER WAS ABOUT 5 FEET ABOVE THE RWY DURING A TOW TAKEOFF WITH THE L-19 TOW PLANE ABOUT READY TO LEAVE THE GROUND WHEN THE GLIDER PLT SWITCHED HANDS ON THE CONTROL STICK & APPARENTLY HIT THE COCKPIT CANOPY LATCH CAUSING THE CANOPY TO OPEN VIOLENTLY. THE PLT WAS UNABLE TO CLOSE THE CANOPY. SINCE HE WAS BARELY ABLE TO MAINTAIN LEVEL FLIGHT, HE PULLED THE TOW RELEASE AT ABOUT 10 FEET AGL. THE GLIDER PITCHED VIOLENTLY DOWNWARD TO THE RWY HITTING HARD ON THE NOSE & THEN HARD ON THE TAIL. THE PLT SAID THE ELEVATOR CONTROLS FROZE DUE TO INTERNAL DAMAGE IN THE TAIL & THE GLIDER BOUNCED ANOTHER 3 OR 4 TIMES OUT OF CONTROL UNITL IT FINALLY CAME TO A HALT ON THE RIGHT SIDE OF THE RWY.

The National Transportation Safety Board determines the probable cause(s) of this accident to be:

WINDOW..UNLOCKED

The National Transportation Safety Board determines the probable cause(s) of this accident to be:

MISCELLANEOUS EQUIPMENT..INADVERTENT..PILOT IN COMMAND

The National Transportation Safety Board determines the probable cause(s) of this accident to be:

FLT CONTROL SYST,ELEVATOR CONTROL..BINDING(MECHANICAL)

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