NTSB CAROL · Event
Event CEN21LA279
Aircraft involved
Probable cause & findings
The airplane’s collision with a deer on the runway during landing.
Factual narrative
On June 18, 2021, about 2030 eastern daylight time, a Cessna 310R airplane, N310LC, sustained substantial damage when it was involved in an accident at Portland Municipal Airport (PLD), Portland, Indiana. The pilot and passenger were not injured. The flight was operated as a Title 14 Code of Federal Regulations Part 135 on-demand air taxi flight. The pilot reported that he diverted to PLD due to thunderstorms. During the landing flare, a deer ran onto the left side of the runway and collided with airplane, separating the left main landing gear from the airplane. The airplane veered to the left and continued off the runway into a ditch. The airplane sustained substantial damage to the left wing and left horizontal stabilizer. The airport does not have a perimeter fence for wildlife hazard mitigation. During the landing flare, a deer ran onto the left side of the runway and collided with the airplane; the left main landing gear separated from the airplane. The airplane veered to the left and continued off the runway into a ditch. The airplane sustained substantial damage to the left wing and left horizontal stabilizer. The pilot reported that there were no preaacident mechanical failures or malfunctions with the airplane that would have precluded normal operation. The airport does not have a perimeter fence for wildlife hazard mitigation. 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).
- — Environmental issues-Physical environment-Object/animal/substance-Animal(s)/bird(s)-Contributed to outcome
Verbatim from NTSB's published report. Source file
NTSB_2021_CEN21LA279.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 (thunderstorm). 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 2024 · Journal article (IJAAA)
The Impact of Thunderstorms on Take-off Data in South Africa
Aviation and meteorology are entwined disciplines, as aviation occurs in the atmosphere. Prevailing weather conditions at take-off are of utmost importance to aviation.
- NASA NTRS 2019 · Technical Memorandum (TM)
Thunderstorm hazards flight research: Storm hazards 1980 overview
A highly instrumented NASA F-106B aircraft, modified for the storm hazards mission and protected against direct lightning strikes, was used in conjunction with various ground based radar and lightning…
- NASA NTRS 2019 · Conference Proceedings
Operational evaluation of thunderstorm penetration test flights during project Storm Hazards '80
The National Aeronautics and Space Administration is conducting a research project called Storm Hazards '80 in order to study the prediction, detectability and avoidance of the hazards of severe storm…
- NASA NTRS 2019 · Preprint (Draft being sent to journal)
Nowcasting Thunderstorm Anvil Clouds Over KSC/CCAFS
Electrified thunderstorm anvil clouds extend the threat of natural and triggered lightning to space launch and landing operations far beyond the immediate vicinity of thunderstorm cells.
- 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.
- NASA NTRS 2019 · Reprint (Version printed in journal)
Observations of severe turbulence near thunderstorm tops
Data derived from the flight tapes of two airliners that experienced severe turbulence near thunderstorm tops are used to produce quantitative descriptions of the turbulence and its environment.
Browse the full corpus — academia portal ↗