NTSB CAROL · Event
Event NYC97LA096
Registry · N4430R
FAA Aircraft Registry record.
Make / Model
CESSNA 172M
Year of manufacture
1974 · 23 years old at event
Engine
LYCOMING 0-320 SERIES (180 hp)
Seats / Engines
4 seats · 1 engine
Last airworthiness date
19740415
ADS-B equipped
Yes — Mode-S A5582A
Registrant of record
DUNDER NEIL DBA
Source: FAA Aircraft Registry (releasable master file).
Aircraft involved
Probable cause & findings
The inadvertent encounter with the helicopter main rotor downwash during the initial takeoff climb. Subsequently, the airplane descended and impacted the ground.
Factual narrative
On May 18, 1997, about 1245 eastern daylight time, a Cessna 172M, N4430R, was substantially damaged when it encountered wake turbulence during the initial takeoff climb at the Galion Municipal Airport, Galion, Ohio. The certificated private pilot and passenger were not injured. Visual meteorological conditions prevailed for the personal flight. No flight plan was filed for the flight conducted under 14 CFR Part 91. In a written statement submitted by the pilot, he stated the following: "I was preparing for departure on runway 23. The...helicopter was approaching for landing on the grass near the hangars. I completed the engine run-up and started my take off run. After lift off and about fifty feet altitude, I encountered severe turbulence from the helicopter rotor which tipped the [airplane] almost vertical to the right. I was able to get the [airplane] leveled before it made hard contact with the runway. The nose wheel strut collapsed letting the propeller strike the ground. We came to a stop on the grass between the runway and the taxiway. After our encounter with the turbulence, they moved the helicopter landing site much farther from the active runway." The pilot reported that the helicopter was approaching from the east to the south side of runway 23. The pilot stated that there were no mechanical malfunctions with the airplane. While a helicopter was approaching the south side of runway 23 from the east, the airplane pilot was conducting a takeoff from runway 23. During the initial takeoff climb, about 50 above ground level, the airplane encountered main rotor downwash from the helicopter. The airplane then descended and impacted the ground. The airplane pilot stated that there were no mechanical malfunctions with the airplane. The airplane pilot further reported that after the accident, the helicopter landing site was relocated to an area further away from the active runway. Source: NTSB Aviation Accident Database (Pre-2008 Archive) Retrieved: 2026-02-12
Verbatim from NTSB's published report. Source file
NTSB_1997_NYC97LA096.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 (wake turbulence, turbulence). 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 2019 · Conference Paper
Aircraft wake turbulence minimization by aerodynamic means
The paper reviews NASA's efforts on wake vortex turbulence minimization by aerodynamic design or retrofit modifications to large transport aircraft.
- NASA NTRS 2019 · Conference Paper
Wake Turbulence Mitigation for Arrivals (WTMA)
The preliminary Wake Turbulence Mitigation for Arrivals (WTMA) concept of operations is described in this paper. The WTMA concept provides further detail to work initiated by the Wake Vortex Avoidance…
- NASA NTRS 2019 · Conference Paper
Aircraft wake turbulence avoidance
Aircraft wake turbulence /trailing vortex systems/ avoidance during flight, describing procedures for pilots and tower operators
- NASA NTRS 2019 · Conference Paper
Aircraft wake turbulence progress and plans
Aircraft wake turbulence and trailing vortices, investigating physical characteristics, hazard potential and avoidance techniques
- SKYbrary (Eurocontrol) 2023 · SKYbrary article
Wake Vortex Turbulence — SKYbrary Knowledge Base
SKYbrary wake vortex turbulence comprehensive article — generation mechanics, dissipation factors, separation standards (ICAO LIGHT/MEDIUM/HEAVY/SUPER + recategorisation RECAT-EU).
- NASA NTRS 2019 · Contractor Report (CR)
An Examination of Aviation Accidents Associated with Turbulence, Wind Shear and Thunderstorm
The focal point of the study reported here was the definition and examination of turbulence, wind shear and thunderstorm in relation to aviation accidents.
Browse the full corpus — academia portal ↗