NTSB CAROL · Event
Event ERA12CA341
Aircraft involved
Probable cause & findings
The pilot's failure to maintain airplane control after the cockpit canopy opened during the takeoff climb. Contributing to the accident was the pilot’s failure to securely lock the canopy before takeoff.
Factual narrative
The pilot was practicing takeoffs and landings. He reported that he opened the canopy to vent the cockpit prior to takeoff; however, he was unsure if he verified that it was latched and locked. The pilot completed one takeoff and landing, and on the next takeoff, the canopy lifted off of the frame during the initial climb. The pilot unsuccessfully attempted to close the canopy and continued the climb, but was unsure if the airplane would maintain clearance from trees located beyond the departure end of the runway. He banked the airplane to avoid striking trees and the airplane entered a stall. The pilot pitched the airplane down, and was able to recover it from the stall; however, the airplane impacted the ground resulting in substantial damage to the wings and fuselage. A postaccident examination of the airplane and canopy revealed that there were no preimpact malfunctions or anomalies that would have precluded normal operation. The pilot was practicing takeoffs and landings. He reported that he opened the canopy to vent the cockpit before takeoff; however, he was unsure if he verified that it was latched and locked. The pilot completed one takeoff and landing, and, on the next takeoff, the canopy lifted off of the frame during the initial climb. The pilot unsuccessfully attempted to close the canopy and continued the climb but was unsure if the airplane would maintain clearance from trees located beyond the departure end of the runway. He banked the airplane to avoid striking trees and the airplane entered a stall. The pilot pitched the airplane down and was able to recover it from the stall; however, the airplane impacted the ground resulting in substantial damage to the wings and fuselage. A postaccident examination of the airplane and canopy revealed that there were no preaccident malfunctions or failures that would have precluded normal operation. Source: NTSB Aviation Accident Database Retrieved: 2026-02-12
NTSB Findings
Hierarchical cause / factor breakdown from the FAA bulk avdata database. Each finding tagged C (Cause) or F (Factor).
- C Personnel issues-Task performance-Use of equip/info-Aircraft control-Pilot - C
- F Aircraft-Aircraft structures-Doors-Passenger/crew doors-Incorrect use/operation - F
- F Personnel issues-Task performance-Use of equip/info-Use of equip/system-Pilot - F
Verbatim from NTSB's published report. Source file
NTSB_2012_ERA12CA341.txt.
Findings + structured fields enriched from FAA avall.mdb.
Full investigation docket on
data.ntsb.gov ↗.
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Related research
What the literature says.
Academic papers and agency reports matching this event's aircraft type or causal vocabulary (icing, stall). Sourced from NASA NTRS, NTSB Safety Studies, FAA CAMI, AOPA Air Safety Institute, Embry-Riddle Scholarly Commons, arXiv, and the Semantic Scholar academic graph.
- arXiv 2023 · arXiv preprint
Variation of Critical Crystallization Pressure for the Formation of Square Ice in Graphene Nanocapillaries
Two-dimensional square ice in graphene nanocapillaries at room temperature is a fascinating phenomenon and has been confirmed experimentally.
- arXiv 2022 · arXiv preprint
Enhanced Prediction of Three-dimensional Finite Iced Wing Separated Flow Near Stall
Icing on three-dimensional wings causes severe flow separation near stall. Standard improved delayed detached eddy simulation (IDDES) is unable to correctly predict the separating reattaching flow due…
- NASA NTRS 2019 · Contractor Report (CR)
An Evaluation of an Analytical Simulation of an Airplane with Tailplane Icing by Comparison to Flight Data
This report presents the assessment of an analytical tool developed as part of the NASA/FAA Tailplane Icing Program. The analytical tool is a specialized simulation program called TAILSM4 which was de…
- NASA NTRS 2019 · Technical Publication (TP)
NASA/FAA Tailplane Icing Program: Flight Test Report
This report presents results from research flights that explored the characteristics of an ice-contaminated tailplane using various simulated ice shapes attached to the leading edge of the horizontal …
- NASA NTRS 2019 · Other
[Tail Plane Icing]
The Aviation Safety Program initiated by NASA in 1997 has put greater emphasis in safety related research activities. Ice-contaminated-tailplane stall (ICTS) has been identified by the NASA Lewis Icin…
- Embry-Riddle Scholarly Commons 2019 · Journal article (IJAAA)
Airport Policing in Pakistan: Structure, Training, and Issue
Airports are strategically and economically important installations of any country. Airports are the gateway of any country and any incidents at these gateways may harm the very aspects of a country i…
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