15 Jun 2017: BURKHART GROB G103C TWIN II AC

15 Jun 2017: BURKHART GROB G103C TWIN II AC — Unknown operator

No fatalities • Boerne, TX, United States

Probable cause

The student pilot’s failure to maintain an adequate glidepath and the flight instructor’s delayed remedial action, which resulted in the glider landing short of the runway.

— NTSB Determination

Accident narrative

The flight instructor of a glider report that, during landing, about 100 above the ground, a "a sink rate started to develop". He added that, he took over the flight controls and closed the spoilers. The glider impacted the airport perimeter fence and landed short of the runway, then slid into a culvert.

The glider sustained substantial damage to the empennage.

The flight instructor failed to submit the NTSB Form 6120.1 Pilot/ Operator Aircraft Accident/ Incident Report.

Contributing factors

  • cause Descent/approach/glide path — Not attained/maintained
  • cause Student/instructed pilot
  • cause Instructor/check pilot
  • Effect on operation
  • Contributed to outcome

Conditions

Weather
VMC, wind 140/14kt, vis 10sm

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