LAX98LA084
LAX98LA084

On January 25, 1998, at 1200 hours mountain standard time, a Let Blanik L-13, N3463, veered off the runway and collided with parked vehicles during a winch launch at the Coyote Run Gliderport, Prescott Valley, Arizona. The glider sustained substantial damage and the commercial pilot, the sole occupant, was not injured. Visual meteorological conditions prevailed at the time of the accident and no flight plan was filed for the intended local area personal flight.

In his report, the pilot explained that the Blanik L-13 uses two attachment points on its tow bridle, instead of the usual single attachment point, with one attach point on either side of the fuselage about half way up the side. The glider has a single retractable wheel in the center of the fuselage. He reported that during this particular launch, the left hook of the bridle became unattached almost immediately as the glider lurched forward under the winch tow. With only the right hook attached, "the one attachment point now worked as a lever, rotating the glider about the center wheel, and resulting in the glider being pulled off to the left side of the runway as it shot forward." The pilot further stated that before he had time to react and pull the release, the left wingtip of the glider struck the tailgate of a pickup truck parked off the left side of the runway, and approximately 6 feet of the outer portion of the wingtip separated at the leading edge. The glider then proceeded in a sharp angle away from the runway towards the windsock pole still under tow on only the right side and still accelerating. The glider then launched into the air and struck the top of the windsock pole with the inboard portion of the right wing. The pilot reported that at that time he pulled the release to disconnect the tow wire from the glider. The right wingtip then struck the ground and the glider swung around approximately 270 degrees as the fuselage and tail struck the ground and came to a stop.

According to a Federal Aviation Administration inspector from the Scottsdale Flight Standards District Office, the bridle was incorrectly attached at the time of the accident by the ground crew.

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