NTSB CAROL · Event
Event ERA15CA317
Registry · N93606
FAA Aircraft Registry record.
Make / Model
ERCOUPE 415-C
Year of manufacture
1946 · 69 years old at event
Engine
CONT MOTOR A&C75 SERIES (75 hp)
Seats / Engines
2 seats · 1 engine
Last airworthiness date
19560714
ADS-B equipped
Yes — Mode-S ACFE6A
Registrant of record
VERNON GREGORY L
Source: FAA Aircraft Registry (releasable master file).
Aircraft involved
Probable cause & findings
The pilot's failure to maintain airspeed and his exceedance of the wing's critical angle of attack, which resulted in an aerodynamic stall and subsequent collision with terrain.
Factual narrative
According to the pilot, shortly after takeoff he noticed that there was no movement on the header tank fuel float gauge. He went on to say that the fuel float gauge then started to move "down quickly", and since he still had the airport insight, he decided to turn back and conduct a precautionary landing. As he approached for landing he "raised" the nose of the airplane to slow down; but became "too low and too slow" and the airplane collided with a road adjacent to the airport. The airplane sustained substantial damage to the fuselage and wings. Examination of the fuel float gauge by a Federal Aviation Administration inspector did not reveal any anomalies. In addition, the pilot reported there were no pre-impact mechanical failures or malfunctions with the airframe or engine that would have precluded normal operation. According to the pilot, shortly after takeoff he noticed that there was no movement on the header tank fuel float gauge. He went on to say that the fuel float gauge then started to move "down quickly", and since he still had the airport insight, he decided to turn back and conduct a precautionary landing. As he approached for landing he "raised" the nose of the airplane to slow down; but became "too low and too slow" and the airplane collided with a road adjacent to the airport. The airplane sustained substantial damage to the fuselage and wings. Examination of the fuel float gauge by a Federal Aviation Administration inspector did not reveal any anomalies. In addition, the pilot reported there were no pre-impact mechanical failures or malfunctions with the airframe or engine 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
- C Aircraft-Aircraft oper/perf/capability-Performance/control parameters-Airspeed-Not attained/maintained - C
- C Aircraft-Aircraft oper/perf/capability-Performance/control parameters-Angle of attack-Not attained/maintained - C
Verbatim from NTSB's published report. Source file
NTSB_2015_ERA15CA317.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 (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.
- NASA NTRS 2026 · Conference Paper
Computational Analysis of Steady State Aerodynamics of Transonic Truss-Braced Wing Configuration in Deep Stall
This study presents a computational investigation of steady state aerodynamics of the Subsonic Ultra-Green Aircraft Research (SUGAR) Transonic Truss-Braced Wing (TTBW) configuration over a wide range …
- arXiv 2023 · arXiv preprint
Automating Bird Diverter Installation through Multi-Aerial Robots and Signal Temporal Logic Specifications
This paper tackles the task assignment and trajectory generation problem for bird diverter installation using a fleet of multi-rotors.
- 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 2023 · arXiv preprint
Polycrystallinity enhances stress build-up around ice
Damage caused by freezing wet, porous materials is a widespread problem, but is hard to predict or control. Here, we show that polycrystallinity makes a great difference to the stress build-up process…
- 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…
- Embry-Riddle Scholarly Commons 2021 · Journal article (JAAER)
Analysis on the Negative Emotional, Physiological, and Cognitive Responses Elicited from of the Activation of a Stall Alarm
Failing to identify an aerodynamic stall can lead to the inability of an aircraft to sustain flight. To warn pilots of an impending or fully-developed stall, many aircraft have safety devices installe…
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