GAA18CA553
2018-09-13 · Spanish Fork, Utah, United States · Minor · 1 aircraft · Status: Completed
Airport SPK
Aircraft involved
Probable cause & findings
The student pilot’s failure to maintain the runway heading during takeoff and the flight instructor’s decision to conduct primary flight instruction in an airplane without dual controls.
Factual narrative
The flight instructor reported that, during takeoff, as the airplane reached rotation speed, the student took his feet off the rudder pedals. The airplane drifted left of the runway centerline, the student quickly placed his feet back on the pedals and pushed the right brake, which caused the airplane to veer right. The instructor, who did not have brakes on his side, applied left rudder, but the airplane departed the right side of the runway. During the runway excursion, the tail was heard dragging the ground or striking bushes. Subsequently, the airplane aligned with the runway, but fearing damage to the tail, the instructor aborted the takeoff and landed the airplane on the side of the runway, striking large mounds of dirt and a ditch. The airplane sustained substantial damage to both wings and the fuselage. The flight instructor reported that there were no preaccident mechanical failures or malfunctions with the airplane that would have precluded normal operation. The flight instructor reported that, during takeoff, as the airplane reached rotation speed, the student took his feet off the rudder pedals. The airplane drifted left of the runway centerline, and the student then quickly placed his feet back on the pedals and pushed the right brake, which caused the airplane to veer right. The instructor, who did not have brakes on his side, applied left rudder, but the airplane departed the right side of the runway. He added that, during the runway excursion, he heard the tail dragging along the ground or striking bushes. Subsequently, the airplane aligned with the runway, but fearing damage to the tail, the instructor aborted the takeoff and landed the airplane on the side of the runway, and it struck large mounds of dirt and a ditch. The airplane sustained substantial damage to both wings and the fuselage. The flight instructor reported that there were no preaccident mechanical failures or malfunctions with the airplane 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-Heading/course-Not attained/maintained - C
- C Personnel issues-Task performance-Use of equip/info-Aircraft control-Student/instructed pilot - C
- C Personnel issues-Action/decision-Info processing/decision-Decision making/judgment-Instructor/check pilot - C
- — Environmental issues-Physical environment-Terrain-Sloped/uneven terrain-Contributed to outcome
Verbatim from NTSB's published report. Source file
NTSB_2018_GAA18CA553.txt.
Findings + structured fields enriched from FAA avall.mdb.
Full investigation docket on
data.ntsb.gov ↗.
Search this event elsewhere
External sources are reported, not agency: signal that something happened, not fact about what happened.
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Related research
Matched on aircraft type or causal vocabulary (runway excursion). All research papers
- SKYbrary (Eurocontrol) 2024 · SKYbrary article Runway Excursion — SKYbrary Knowledge Base
SKYbrary runway excursion review — RE-OE (overruns) + RE-LO (lateral). Risk drivers: long landing, high approach speed, contaminated surface, tailwind, mis-set autobrakes.
- NTSB Aircraft Accident Reports 2019 · Accident report Embraer ERJ 175 Runway Excursion at Charlotte Douglas
Republic Airline ERJ-175 runway excursion CLT, January 2018. Examines a low-energy runway excursion involving misuse of autobrakes + thrust reverser response after a high-crosswind landing on a contam…
- NASA NTRS 2025 · Presentation Uncovering Resilient Behavior in the Aviation Safety Reporting System Using Large Language Models
Resiliency is present in everyday life, both in system design and exhibited by the operators that function within these systems.
- NASA NTRS 2025 · Conference Paper Uncovering Resilient Behavior in the Aviation Safety Reporting System Using Large Language Models
Resiliency is present in everyday life, both in system design and exhibited by the operators that function within these systems.
- Flight Safety Foundation 2024 · FSF / AeroSafety World Runway Safety Initiative Final Report (RSI)
Foundation Runway Safety Initiative final report — comprehensive analysis of runway excursion + incursion risk drivers worldwide.
- Semantic Scholar 2020 · Article Towards online prediction of safety-critical landing metrics in aviation using supervised machine learning
Abstract In recent years, due to the increased availability of data and improvements in computing power, application of machine learning techniques to various aviation safety problems for identifying,…