WPR18LA259
2018-09-12 · Roche Harbor, Washington, United States · None · 1 aircraft · Status: Completed
Airport WA09
Aircraft involved
Probable cause & findings
The pilot’s failure to secure his seat position prior to takeoff, which resulted in a loss of airplane control and subsequent hard landing.
Factual narrative
On September 12, 2018, at 0810 Pacific daylight time, a Cessna 172 airplane, N24ME, was substantially damaged when it was involved in an accident near Roche Harbor, Washington. The pilot was not injured. The airplane was operated as a Title 14 Code of Federal Regulations Part 91 positioning flight. According to the pilot, just prior to takeoff, he adjusted his seat and “wiggled it” to ensure it was locked. During the takeoff roll, the seat moved all the way aft, and the pilot was not able to reach the throttle or the rudder pedals. The airplane veered to the left and lifted off the ground. Shortly after, the tail struck the ground, followed by the left wing, and the airplane came to rest on its nose. A Federal Aviation Administration (FAA) inspector responded to the accident site. The FAA inspector observed the pilot’s seat in the farthest aft position with the stops engaged in the aft holes. He further reported that the seat moved freely in both directions, to each stop, with no binding encountered. Additionally, there was proper hole engagement with the seat pin and holes in the seat rail; the seat did not move once the stop was engaged with the hole. The pilot reported that he adjusted his seat and “wiggled it” prior to takeoff to ensure it was locked in place. However, during the takeoff roll, the seat moved all the way aft, and the pilot was not able to reach the throttle or the rudder pedals. The airplane veered to the left and lifted off the ground. Shortly after, the tail struck the ground, followed by the left wing, and the airplane came to rest on its nose. A postaccident examination of the seat rail and latching mechanism revealed no anomalies. There was proper hole engagement with the seat pin and holes in the seat rail; the seat did not move once the stop was engaged with the hole. Therefore, it is likely that although the pilot attempted to secure his seat before takeoff, the seat pin was likely not engaged in the corresponding hole in the seat rail, which resulted in its aft movement when the airplane gained speed during the takeoff roll. Source: NTSB Aviation Accident Database Retrieved: 2026-02-12
NTSB Findings
FAA avdata. C = Cause, F = Factor.
- — Personnel issues-Action/decision-Action-Incomplete action-Pilot
- — Aircraft-Fluids/misc hardware-Misc hardware-Fasteners-Incorrect use/operation
- — Personnel issues-Task performance-Use of equip/info-Aircraft control-Pilot
Verbatim from NTSB's published report. Source file
NTSB_2018_WPR18LA259.txt.
Findings + structured fields enriched from FAA avall.mdb.
Full investigation docket on
data.ntsb.gov ↗.
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Related research
Matched on aircraft type. All research papers
- NASA NTRS 2023 · Reprint (Version printed in journal) Finite Element Simulation of Three Full-Scale Crash Tests for Cessna 172 Aircraft
The NASA Emergency Locator Transmitter Survivability and Reliability project was initiated in 2013 to assess the crash performance standards for the next generation of emergency locator transmitter (E…
- NASA NTRS 2019 · Conference Paper Crash Testing and Simulation of a Cessna 172 Aircraft: Pitch Down Impact Onto Soft Soil
During the summer of 2015, NASA Langley Research Center conducted three full-scale crash tests of Cessna 172 (C-172) aircraft at the NASA Langley Landing and Impact Research (LandIR) Facility.
- NASA NTRS 2019 · Technical Memorandum (TM) Simulating the Impact Response of Three Full-Scale Crash Tests of Cessna 172 Aircraft
During the summer of 2015, a series of three full-scale crash tests were performed at the Landing and Impact Research Facility located at NASA Langley Research Center of Cessna 172 aircraft.
- Embry-Riddle Scholarly Commons 2023 · Conference paper Validation of Training Satisfaction Survey
The Training Satisfaction Survey (TSS) was developed as part of a larger project to examine the features of Virtual Reality software and supporting devices as a training program on visual illusions an…
- Semantic Scholar 2021 · Article (Data in Brief) Cockpit voice recorder transcript data: Capturing safety voice and safety listening during historic aviation accidents
Cockpit Voice Recorder (CVR) transcripts capture audio data within cockpit environments. This aids the investigation of causal factors contributing to aviation accidents by revealing communication and…
- Semantic Scholar 2021 · Article (Safety Science) Safety voice and safety listening during aviation accidents: Cockpit voice recordings reveal that speaking-up to power is not enough
Abstract Safety voice is theorised as an important factor for mitigating accidents, but behavioural research during actual hazards has been scant.