Pilot Debrief

MONNETT MONI near Tulsa, OK — 2021-09-06

Final reportCEN21LA396
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Date
2021-09-06
Location
Tulsa, OK, USA
Airport
1H6
Aircraft
MONNETT MONI
Registration
N983JV
Category
Glider
Highest injury
Fatal
Fatalities
1
Phase of flight
Takeoff roll

Probable cause

An aerodynamic stall/spin and loss of control for reasons that could not be determined based on the available information.

NTSB narrative

The student pilot was departing in the motorglider when the accident occurred. A witness stated that the glider used about 3/4 of the 2,580-ft-long runway to become airborne. As the glider climbed, it entered an aerodynamic stall and spin, and subsequently impacted terrain. Security camera footage showed the glider impact the ground in a near-vertical, nose-low attitude in a counterclockwise spin. The glider sustained substantial damage to the right wing and fuselage. An examination of the glider did not reveal any anomalies that would have precluded normal operations. The glider’s maintenance history could not be determined. The glider had been deregistered about 8 years before the accident. The student pilot’s logbook was not located, and neither his total flight experience nor experience in the accident glider could be determined. Although the circumstances of the accident are consistent with an aerodynamic stall/spin and loss of control, the reason for the loss of control could not be determined based on the available information.

Analysis

Primary failure mode
Loss of control
First missed decision gate
Pilot could have aborted takeoff after using 3/4 of the runway.

NTSB coding

Evidence available

  • Photos
  • 4 docket documents
View NTSB final reportView NTSB docket

Docket documents4

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