NTSB CAROL · Event
Event FTW95LA335
Aircraft involved
Probable cause & findings
DEBONDING OF MYLAR TAPE THAT WAS USED TO SEAL A GAP ON THE ELEVATOR, WHICH RESULTED IN INADEQUATE ELEVATOR CONTROL AUTHORITY.
Factual narrative
On August 7, 1995, at 1730 central daylight time, a Schempp-Hirth Ventus A, N307L, was substantially damaged following a loss of control near Rocksprings, Texas. The airline transport rated pilot received minor injuries. The glider was being operated as a personal flight under Title 14 CFR Part 91. The flight originated in Uvalde, Texas, at 1345. Visual meteorological conditions prevailed, and a flight plan was not filed for the round robin flight. During a telephone interview with the investigator-in-charge the pilot reported that when he attempted to accelerate to glide airspeed he experienced problems with elevator control. He had to apply full elevator before the glider would respond to control inputs. It also responded "very slowly" to the elevator control inputs. The pilot further reported he was going to land on a ranch road; however, because of the control problem he elected to bail out. The glider impacted the ground in a level attitude damaging the fuselage, horizontal stabilizer, and canopy. Examination of the glider by a Federal Aviation Administration inspector revealed that the Mylar tape, which was used as a gap seal for the elevator, had partially separated. ACCORDING TO THE PILOT, AS HE ATTEMPTED TO ACCELERATE TO GLIDE SPEED, HE EXPERIENCED PROBLEMS WITH ELEVATOR CONTROL. HE SAID HE HAD TO APPLY FULL ELEVATOR BEFORE THE GLIDER WOULD RESPOND TO THE CONTROL INPUTS AND THAT IT RESPONDED VERY SLOWLY.' THE PILOT WAS GOING TO LAND ON A RANCH ROAD; HOWEVER, BECAUSE OF THE CONTROL PROBLEM, HE DETERMINED IT WAS SAFER TO BAIL OUT. THE GLIDER IMPACTED THE GROUND IN A LEVEL ATTITUDE, DAMAGING THE FUSELAGE, HORIZONTAL STABILIZER, AND CANOPY. EXAMINATION OF THE GLIDER REVEALED THAT MYLAR TAPE, WHICH WAS USED AS A GAP SEAL FOR THE ELEVATOR, HAD PARTIALLY SEPARATED. Source: NTSB Aviation Accident Database (Pre-2008 Archive) Retrieved: 2026-02-12
Verbatim from NTSB's published report. Source file
NTSB_1995_FTW95LA335.txt.
Findings + structured fields enriched from FAA avall.mdb.
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Related research
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Academic papers and agency reports matching this event's aircraft type or causal vocabulary (loss of control). Sourced from NASA NTRS, NTSB Safety Studies, FAA CAMI, AOPA Air Safety Institute, Embry-Riddle Scholarly Commons, arXiv, and the Semantic Scholar academic graph.
- Embry-Riddle Scholarly Commons 2025 · Journal article (JAAER)
A Scoping Review of Aviation Loss of Control Inflight Research
Loss of control – inflight (LOC-I) contributes to aircraft accidents at unacceptably high rates. Significant industry efforts and research have aimed to improve LOC-I prevention, detection, and recove…
- SKYbrary (Eurocontrol) 2024 · SKYbrary article
Loss of Control In-Flight (LOC-I) — SKYbrary Knowledge Base
SKYbrary comprehensive knowledge-base entry on Loss of Control In-Flight — definitions, contributing factors, accident case studies (Air France 447, Colgan 3407), and prevention strategies.
- NTSB Aircraft Accident Reports 2022 · Accident report
Loss of Control on Takeoff in Icing Conditions — Citation 560XL
Cessna Citation 560XL fatal takeoff icing accident, March 2018. Investigation of a Citation 560XL loss-of-control takeoff accident in icing conditions.
- Semantic Scholar 2021 · Article (Aviation)
ANALYSIS OF GENERAL AVIATION FIXED-WING AIRCRAFT ACCIDENTS INVOLVING INFLIGHT LOSS OF CONTROL USING A STATE-BASED APPROACH
Inflight loss of control (LOC-I) is a significant cause of General Aviation (GA) fixed-wing aircraft accidents. The United States National Transportation Safety Board’s database provides a rich source…
- NASA NTRS 2021 · Presentation
Use of Design of Experiments in Determining Neural Network Architectures for Loss of Control Detection
Abstract—We describe empirical methods for selecting a neural network architecture to implement belief state inference on generic commercial transport aircraft.
- NASA NTRS 2021 · Conference Paper
Use of Design of Experiments in Determining Neural Network Architectures for Loss of Control Detection
We describe empirical methods for selecting a neural network architecture to implement belief state inference on generic commercial transport aircraft.
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