SEA03LA068
2003-04-22 · Marion, Montana, United States · None · 1 aircraft · Status: Completed
Airport MT53
Current FAA registration · N60733
- Make / Model
- PIPER PA-18A-135
- Engine
- LYCOMING 0-320 SERIES (180 hp)
- Seats / Engines
- 2 seats · 1 engine
- Last airworthiness date
- 20030407
- ADS-B equipped
- Yes — Mode-S A7E41D
Source: FAA Aircraft Registry (releasable master file).
Aircraft involved
Probable cause & findings
The pilot-in-command's failure to maintain directional control during the takeoff roll resulting in the aircraft leaving the runway, crossing a ditch and collapsing the landing gear. A contributing factor was the ditch.
Factual narrative
On April 22, 2003, approximately 1815 mountain daylight time, a Piper PA-18-135, N60733, registered to and being flown/operated by a private pilot, was substantially damaged during a loss of control on takeoff at the Carson Field airstrip (MT53), Marion, Montana. The pilot and his wife were uninjured. Visual meteorological conditions existed and no flight plan had been filed. The flight, which was personal, was operated under 14CFR91, and was to have been local in nature. The pilot reported the accident to the NTSB's Northwest Regional Office on the morning of April 23rd and stated that during the takeoff roll on runway 12 (turf), and with a 2-3 knot quartering wind, he lost directional control of the conventionally geared Super Cub and the aircraft departed the runway crossing a ditch and damaging one wing. Winds at Kalispell, Montana, 29 nautical miles northeast were reported at 4 knots from 120 degrees magnetic at 1755. The pilot reported that there was no mechanical malfunction with the aircraft during the event. The pilot later reported in the narrative of his submitted NTSB Form 6120.1: "Failure to maintain directional control of [the] aircraft [which] resulted in it leaving [the] runway and running through [a] ditch shearing [the] gear legs." The pilot/owner of the Piper PA-18-135, accompanied by his wife, was taking off from runway 12, a turf/grass strip, at Marion, Montana. Winds were light and out of the southeast at the time. The pilot reported that during the takeoff roll he lost directional control of the aircraft, which then departed the runway crossing a ditch and collapsing the main landing gear. The pilot reported that there was no mechanical malfunction with the aircraft during the event. Source: NTSB Aviation Accident Database (Pre-2008 Archive) Retrieved: 2026-02-12
Verbatim from NTSB's published report. Source file
NTSB_2003_SEA03LA068.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 or causal vocabulary (loss of control). All research papers
- Embry-Riddle Scholarly Commons 2025 · Journal article (JAAER) A Scoping Review of Aviation Loss of Control Inflight Research
Loss of control – inflight (LOC-I) contributes to aircraft accidents at unacceptably high rates. Significant industry efforts and research have aimed to improve LOC-I prevention, detection, and recove…
- SKYbrary (Eurocontrol) 2024 · SKYbrary article Loss of Control In-Flight (LOC-I) — SKYbrary Knowledge Base
SKYbrary comprehensive knowledge-base entry on Loss of Control In-Flight — definitions, contributing factors, accident case studies (Air France 447, Colgan 3407), and prevention strategies.
- Semantic Scholar 2024 · Article (International Conference on Networking and Services) Risk Assessment of Loss of Control In-Flight Trajectories for Urban Air Mobility Safety
In Urban Air Mobility (UAM), maintaining a minimum separation between aircraft is a safety requirement, which becomes challenging amidst congested air traffic and off-nominal conditions, such as Loss …
- NTSB Aircraft Accident Reports 2022 · Accident report Loss of Control on Takeoff in Icing Conditions — Citation 560XL
Cessna Citation 560XL fatal takeoff icing accident, March 2018. Investigation of a Citation 560XL loss-of-control takeoff accident in icing conditions.
- Semantic Scholar 2021 · Article (Aviation) ANALYSIS OF GENERAL AVIATION FIXED-WING AIRCRAFT ACCIDENTS INVOLVING INFLIGHT LOSS OF CONTROL USING A STATE-BASED APPROACH
Inflight loss of control (LOC-I) is a significant cause of General Aviation (GA) fixed-wing aircraft accidents. The United States National Transportation Safety Board’s database provides a rich source…
- NASA NTRS 2021 · Presentation Use of Design of Experiments in Determining Neural Network Architectures for Loss of Control Detection
Abstract—We describe empirical methods for selecting a neural network architecture to implement belief state inference on generic commercial transport aircraft.