NTSB Identification: NYC85LA095.
The docket is stored on NTSB microfiche number 28350.
Accident occurred Saturday, April 13, 1985 in MANSFIELD, MA
Aircraft: LET L-13, registration: N90862
Injuries: 2 Uninjured.

NTSB investigators may not have traveled in support of this investigation and used data provided by various sources to prepare this aircraft accident report.

THE PLT REPORTED THAT HE TURNED ONTO FINAL APCH AT ABOUT 500 FT AGL & THE PATTERN WAS NORMAL UNTIL HE WAS ABOUT 1/3 MI FROM THE RWY THRESHOLD. THE GLIDER THEN BEGAN TO SINK RAPIDLY. THE PLT REALIZED THAT HE WOULD BE UNABLE TO GLIDE TO THE RWY, SO HE DECIDED TO LAND AS SOON AS POSSIBLE TO AVOID A DITCH NEAR THE THRESHOLD. HE EXTENDED FULL SPOILERS & LANDED ON ROUGH TERRAIN. THE LEFT WING HIT A LARGE MOUND OF DIRT, DAMAGING THE GLIDER. THE PLT BELIEVED THAT HE MAY HAVE ENCOUNTERED WIND SHEAR.

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

PLANNING/DECISION..IMPROPER..PILOT IN COMMAND

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

COMPENSATION FOR WIND CONDITIONS..INADEQUATE..PILOT IN COMMAND


Contributing Factors

TERRAIN CONDITION..ROUGH/UNEVEN


Contributing Factors

TERRAIN CONDITION..DIRT BANK/RISING EMBANKMENT


Contributing Factors

WEATHER CONDITION..UNFAVORABLE WIND

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