NTSB CAROL · Event
Event WPR21LA290
Registry · N4446Y
FAA Aircraft Registry record.
Make / Model
BURKHART GROB G 103 TWIN II
Year of manufacture
1983 · 38 years old at event
Engine
NONE NONE
Seats / Engines
2 seats · 1 engine
Last airworthiness date
19830913
ADS-B equipped
Yes — Mode-S A55CBA
Registrant of record
UTAH SOARING ASSOCIATION
Source: FAA Aircraft Registry (releasable master file).
Aircraft involved
Probable cause & findings
The glider’s encounter with atmospheric conditions where the lift was not sufficient to maintain flight which resulted in an off-airport landing and a collision with a fence.
Factual narrative
The pilot reported that during the flight, the glider encountered insufficient lift to maintain flight and he decided to land off airport. He performed a high recon of the area and selected a landing site on the north side of a local reservoir, along the shoreline. While on downwind for the intended landing area, he did not see any obstacles, and performed a teardrop turn to final. The glider touched down in the approximate area he intended to, however, during landing roll, the glider collided with a barbed wire fence and sustained substantial damage to the right wing and the rear canopy. The pilot reported that there were no preaccident mechanical failures or malfunctions with the glider that would have precluded normal operation. Source: NTSB Aviation Accident Database Retrieved: 2026-02-12
NTSB Findings
Hierarchical cause / factor breakdown from the FAA bulk avdata database. Each finding tagged C (Cause) or F (Factor).
- — Environmental issues-Conditions/weather/phenomena-Temp/humidity/pressure-Thermal lifting-Effect on operation
- — Environmental issues-Physical environment-Object/animal/substance-Fence/fence post-Effect on equipment
- — Aircraft-Aircraft oper/perf/capability-Performance/control parameters-Altitude-Attain/maintain not possible
Verbatim from NTSB's published report. Source file
NTSB_2021_WPR21LA290.txt.
Findings + structured fields enriched from FAA avall.mdb.
Full investigation docket on
data.ntsb.gov ↗.
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