1991-08-04: Let L-13 — Ames Soaring Club — Byron, CA

Casualties unknown • Byron, CA, US

Probable cause

THE ON GROUND COLLISION WITH A HIDDEN DITCH NOT VISIBLE TO THE PILOT DURING THE LANDING ROLL OUT PHASE OF A FORCED LANDING.

— NTSB Determination

Accident narrative

THE PILOT SAID HE WAS RETURNING TO THE GLIDER PORT AFTER A LOCAL SOARING FLIGHT DUE TO A LACK OF LIFT. DURING THE FLIGHT BACK TO THE AIRPORT THE PILOT BECAME AWARE THAT THE RATE OF DESCENT WAS TOO HIGH AND THE GLIDER WOULD NOT MAKE THE AIRPORT RUNWAY. THE PILOT SET UP TO LAND IN A VACANT FIELD COVERED WITH MEDIUM HEIGHT GRASS. THE GLIDER COLLIDED WITH A DITCH DURING THE LANDING ROLL OUT IN THE FIELD. THE DITCH WAS NOT VISIBLE TO THE PILOT UNTIL THE LATTER STAGES OF THE LANDING ROLL OUT.

Frequently asked questions

What happened in the 1991-08-04 Let L-13 accident near Byron, CA?

THE PILOT SAID HE WAS RETURNING TO THE GLIDER PORT AFTER A LOCAL SOARING FLIGHT DUE TO A LACK OF LIFT. DURING THE FLIGHT BACK TO THE AIRPORT THE PILOT BECAME AWARE THAT THE RATE OF DESCENT WAS TOO HIGH AND THE GLIDER WOULD NOT MAKE THE AIRPORT RUNWAY. THE PILOT SET UP TO LAND IN A VACANT FIELD COVERED WITH MEDIUM…

What aircraft was involved and where did it happen?

The accident on 1991-08-04 involved a Let L-13, registration N53AS, operated by Ames Soaring Club, at Byron, CA.

What was the probable cause of the accident?

THE ON GROUND COLLISION WITH A HIDDEN DITCH NOT VISIBLE TO THE PILOT DURING THE LANDING ROLL OUT PHASE OF A FORCED LANDING.

Investigation report by the U.S. National Transportation Safety Board (NTSB) historical archive. Original record: https://carol.ntsb.gov/event/20001212X17893. This page is a structured re-presentation; facts and quotes are in the National Transportation Safety Board (NTSB), United States.

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