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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 ↗.

Related research

Matched on aircraft type or causal vocabulary (loss of control). All research papers