Accident LET L-13 Blaník N73534,
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ASN Wikibase Occurrence # 68333
 
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Date:Sunday 14 June 1998
Time:18:15 LT
Type:Silhouette image of generic ll13 model; specific model in this crash may look slightly different    
LET L-13 Blaník
Owner/operator:Greater Houston Soaring Assoc.
Registration: N73534
MSN: 175214
Engine model:Solo%202350B%2F2004
Fatalities:Fatalities: 0 / Occupants: 1
Aircraft damage: Substantial
Category:Accident
Location:Hempstead, TX -   United States of America
Phase: Landing
Nature:Training
Departure airport:(35R)
Destination airport:
Investigating agency: NTSB
Confidence Rating: Accident investigation report completed and information captured
Narrative:
When the glider was adjacent to the intended touch down point, the pilot 'took out some of the spoilers to decrease sink [rate].' After initiating a left turn to base leg he realized that the 'altitude was still much too great and attempted to deploy full spoilers.' Observers on the ground noted that 'no spoilers were deployed; rather, the flaps appeared to have been extended instead.' On final approach, the pilot lowered the nose to try and touch down on the runway, and the aircraft 'porpoised' due to the 'excessive' speed. Approximately 50 feet from the departure end of the runway and less than 15 feet agl, the pilot 'lifted the plane off the ground to avoid hitting the property fence and crossing Highway 290.' He flew the glider over the highway and forced it to the ground in a dirt parking lot. The glider came to a stop after hitting a metal building. The glider also hit a neutral power line during the landing to the parking lot. In the Blanik L-13, the handle for the spoilers is located directly underneath the handle used to deploy the flaps. The pilot stated that 'in concentrating on other factors during landing, it appears that I pulled the wrong lever.' The private pilot rated student had 7 hours total glider time.

Probable Cause: The pilot's failure to maintain the proper rate of descent. Factor were the pilot's inadvertent lowering of the flaps instead of extending the spoilers, and his lack of experience in gliders.

Accident investigation:
cover
  
Investigating agency: NTSB
Report number: FTW98LA264
Status: Investigation completed
Duration: 2 years and 8 months
Download report: Final report

Sources:

NTSB FTW98LA264

Location

Revision history:

Date/timeContributorUpdates
26-Sep-2009 00:40 DColclasure Added
08-Apr-2015 12:00 captain Updated [Cn, Narrative]
21-Dec-2016 19:25 ASN Update Bot Updated [Time, Damage, Category, Investigating agency]
07-Apr-2024 10:59 ASN Update Bot Updated [Time, Operator, Other fatalities, Nature, Departure airport, Destination airport, Source, Narrative, Category, Accident report]

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