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GAA16CA369

2016-07-08 · Red Lodge, Montana, United States · None · 1 aircraft · Status: Completed

Airport RED

Aircraft involved

Probable cause & findings

A deer running across the runway and impacting the left side of the airplane, resulting in a loss of directional control, a runway excursion, and a ground loop.

Factual narrative

The pilot of the tailwheel equipped airplane reported that during takeoff he noticed movement from the left as a deer ran onto the runway. He further reported that he applied right rudder to avoid hitting the deer, but the deer impacted the airplane between the left pilot's door and the horizontal stabilizer causing the airplane to veer to the left. The pilot stated that he attempted to recover by applying maximum right brake and right rudder, however it was ineffective and the airplane exited the runway to the left, ground looped, and nosed over. The airplane sustained substantial damage to both wings, empennage and fuselage. The pilot reported that there were no pre impact mechanical failures or malfunctions with the airframe or engine that would have precluded normal operation. The pilot of the tailwheel equipped airplane reported that during takeoff he noticed movement from the left as a deer ran onto the runway. He further reported that he applied right rudder to avoid hitting the deer, but the deer impacted the airplane between the left pilot's door and the horizontal stabilizer causing the airplane to veer to the left. The pilot stated that he attempted to recover by applying maximum right brake and right rudder, however it was ineffective and the airplane exited the runway to the left, ground looped, and nosed over. The airplane sustained substantial damage to both wings, empennage and fuselage.  The pilot reported that 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

FAA avdata. C = Cause, F = Factor.

  • C Aircraft-Aircraft oper/perf/capability-Performance/control parameters-Directional control-Not attained/maintained - C
  • C Environmental issues-Physical environment-Object/animal/substance-Animal(s)/bird(s)-Effect on operation - C
  • — Personnel issues-Task performance-Use of equip/info-Aircraft control-Pilot

Verbatim from NTSB's published report. Source file NTSB_2016_GAA16CA369.txt. Findings + structured fields enriched from FAA avall.mdb. Full investigation docket on data.ntsb.gov ↗.

Related research

Matched on aircraft type or causal vocabulary (runway excursion). All research papers