Accident LET L-13 Blaník N3463,
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ASN Wikibase Occurrence # 68328
 
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Date:Sunday 25 January 1998
Time:13:00 LT
Type:Silhouette image of generic ll13 model; specific model in this crash may look slightly different    
LET L-13 Blaník
Owner/operator:Prescott Soaring Association
Registration: N3463
MSN: 173921
Total airframe hrs:2017 hours
Engine model:Lycoming%20O-320-B2A
Fatalities:Fatalities: 0 / Occupants: 1
Aircraft damage: Substantial
Category:Accident
Location:Prescott Valley, AZ -   United States of America
Phase: Take off
Nature:Private
Departure airport:
Destination airport:
Investigating agency: NTSB
Confidence Rating: Accident investigation report completed and information captured
Narrative:
The glider uses two attachment points on its bridle, one on either side of the fuselage, and has a single retractable wheel in the center of the fuselage. The left side bridle attachment point for the glider became unattached as the glider began the winch tow. The asymmetrical force then pulled the glider to the left, and the left wing struck a parked truck. The glider then proceeded in a sharp angle away from the runway towards the windsock pole, still under tow on only the right side and still accelerating. The glider launched into the air and struck the top of the windsock pole with the inboard portion of the right wing. The pilot reported that he then pulled the release to disconnect the tow wire from the glider. The right wingtip then struck the ground and the glider swung around approximately 270 degrees as the fuselage and tail struck the ground and came to a stop. According to an FAA inspector, the bridle was incorrectly attached at the time of the accident by the ground crew.

Probable Cause: The failure of the ground crew to correctly attach the tow bridle, which resulted in the pilot's loss of directional control.

Accident investigation:
cover
  
Investigating agency: NTSB
Report number: LAX98LA084
Status: Investigation completed
Duration: 3 years
Download report: Final report

Sources:

NTSB LAX98LA084

Location

Revision history:

Date/timeContributorUpdates
24-Sep-2009 21:34 DColclasure Added
21-Dec-2016 19:25 ASN Update Bot Updated [Time, Damage, Category, Investigating agency]
07-Apr-2024 14:37 ASN Update Bot Updated [Time, Cn, Operator, Other fatalities, Nature, Departure airport, Destination airport, Source, Narrative, Category, Accident report]

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