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ASN Wikibase Occurrence # 65936
Last updated: 2 May 2021
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Type:Silhouette image of generic ll23 model; specific model in this crash may look slightly different
LET L-23 Super Blaník
Registration: N117BB
MSN: 917815
Fatalities:Fatalities: 0 / Occupants: 1
Other fatalities:0
Aircraft damage: Substantial
Location:Sterling, MA -   United States of America
Phase: Landing
Departure airport:Sterling, MA (3B3)
Destination airport:
Investigating agency: NTSB
As the glider neared the airport, the student pilot entered the downwind leg further out from the runway than she normally would. As the glider was turned on to the base leg, the student realized that she would not make the runway and elected to perform a forced landing to a two-lane highway. The glider touched down on the southbound lane of the elevated roadway, impacted a metal guardrail, and came to rest upright. The student had accumulated about 13 hours of dual instruction in gliders, with 7 or 8 different flight instructors, and about 1.4 hours of solo time. The student added that previous to the accident flight, she had no plans to fly solo due to the wind conditions. After her flight instructor reassured her that the pervious dual flight had been good, and student climbed into the glider alone. The recorded weather at a nearby airport, about the time of the accident, included winds from 250 degrees at 13 knots, gusts to 22 knots.
Probable Cause: The student pilots inadequate compensation for wind conditions which resulted in an off-field landing, and the CFI's improper decision to allow the student to fly solo. Factors related to the accident were the gusting wind conditions, and the students lack of total experience in gliders.




Revision history:

24-Jun-2009 07:21 DColclasure Added
21-Dec-2016 19:25 ASN Update Bot Updated [Time, Damage, Category, Investigating agency]
09-Dec-2017 15:22 ASN Update Bot Updated [Cn, Nature, Departure airport, Destination airport, Source, Narrative]

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