20180609015419A

Accident · Destroyed

FAA accident report · Let L-23 SUPER BLANIK · Moose, WY · June 9, 2018

Date: June 9, 2018 · 10:30 local
Place: Moose, WY
Phase of flight: Maneuver
Operating rules: General operating rules (Part 91)
Damage: Destroyed
Aircraft: N317BA
NTSB investigation: NTSBCEN18FA217
Reported as: Let L-23 Super Blanik
Reported engine: NONE NONE
People aboard: 2
Fatal injuries: 2
Other injuries: 0
Pilot’s certificates: Commercial pilot, flight instructor

N317BARegistration cancelled Feb 26, 2021 · Let L-23 SUPER BLANIKS/N 978406 · Built 1997 Airframe modelLet L-23 SUPER BLANIK Engine modelNONENone

From the FAA’s Accident/Incident Data System (AIDS), through its Aviation Safety Information Portal, as reported. The NTSB investigates accidents separately, and its record of an accident is the fuller one. The aircraft is matched to the registry by N-number and event date, checked against the reported make and model; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.

What happened

The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.

At approximately 09:15 local the airman arrived at the airport and prepared for a scenic flight. At approximately 09:50 local the glider was launched via tow-plane. At approximately 10:35 local the glider released from the tow-plane approximately 9 miles east of driggs airport at an altitude of 13,800 ft. MSL. At approximately 1400 local the wreckage was found about 14 miles east of driggs airport at approximately 11,000 ft. MSL.

It was noted that the wind pattern was out of the south as opposed to the more regular wind pattern out of the west southwest. This would have created different areas of lift and sink than would normally be experienced in that area.

As the FAA filed it

AT APPROXIMATELY 09:15 LOCAL THE AIRMAN ARRIVED AT THE AIRPORT AND PREPARED FOR A SCENIC FLIGHT. AT APPROXIMATELY 09:50 LOCAL THE GLIDER WAS LAUNCHED VIA TOW-PLANE. AT APPROXIMATELY 10:35 LOCAL THE GLIDER RELEASED FROM THE TOW-PLANE APPROXIMATELY 9 MILES EAST OF DRIGGS AIRPORT AT AN ALTITUDE OF 13,800 FT. MSL. AT APPROXIMATELY 1400 LOCAL THE WRECKAGE WAS FOUND ABOUT 14 MILES EAST OF DRIGGS AIRPORT AT APPROXIMATELY 11,000 FT. MSL.

IT WAS NOTED THAT THE WIND PATTERN WAS OUT OF THE SOUTH AS OPPOSED TO THE MORE REGULAR WIND PATTERN OUT OF THE WEST SOUTHWEST. THIS WOULD HAVE CREATED DIFFERENT AREAS OF LIFT AND SINK THAN WOULD NORMALLY BE EXPERIENCED IN THAT AREA.

NTSB investigation

The NTSB’s investigation of this event, with its probable cause and findings. Matched to this report by N-number and date.

NTSB CEN18FA217Accident · 2 fatalField investigationFinal reportMoose, WYThe pilot's encounter with atmospheric conditions that resulted in a loss of lift and a subsequent loss of control near terrain that precluded recovery. Contributing to the accident was the pilot's failure to follow the operator's published tour flight…Jun 9, 2018 · Destroyed