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Atlas / NTSB / SEA00LA167

NTSB CAROL · Event

Event SEA00LA167

2000-08-20 NORTH PLAINS, Oregon, United States Airport · 1OR4 Minor 1 aircraft Status: Completed

Registry · N6985D

FAA Aircraft Registry record.

Make / Model

PIPER PA-18A 150

Year of manufacture

1957 · 43 years old at event

Engine

LYCOMING 0-320 SERIES (180 hp)

Seats / Engines

1 seats · 1 engine

Last airworthiness date

19570503

ADS-B equipped

Yes — Mode-S A94B79

Registrant of record

MANSFIELD DOUGLAS M

Source: FAA Aircraft Registry (releasable master file).

Aircraft involved

Probable cause & findings

The pilot's excessive use of brakes. Contributing factors were the pilot's misjudgment of distance/speed (landing long and fast) and lack of experience in the make/model of aircraft.

Factual narrative

On August 20, 2000, approximately 1320 Pacific daylight time, a Piper PA-18A-150, N6985D, registered to Willamette Valley Soaring Club, Inc., and being flown by a commercial pilot, was substantially damaged during a nose over on landing roll at the North Plains gliderport, North Plains, Oregon. The pilot sustained minor injuries. Visual meteorological conditions prevailed and no flight plan was filed. The flight, which was reported to be returning from a glider tow operation, was operated under 14CFR91, and originated from the gliderport approximately 1305. The pilot reported that he had been towing in a PA-25-260 aircraft and was asked to switch to the PA-18A-150. He stated that he pre-flighted N6985D and then "...did one warm-up pattern & [a] good wheel landing, then towed 1 tow/glider to 3,000' and returned to land to [the] west, r[igh]t traffic..." and that "...I did a wheel landing app[ro]x[imately] mid field and the a[ir]c[ra]ft flipped over on its back." The pilot reported a total of 2 hours of flight experience in the PA-18A-150 aircraft and had made numerous landings and takeoffs at the gliderport in the previous year. He also stated on NTSB Form 6120.1/2 that he experienced no mechanical malfunction or failure with the aircraft. Witnesses at the airport reported that the aircraft landed long on the westerly runway (approximately 1,200 feet beyond the threshold of the 2,200 foot long grass/turf strip), and was also fast. An FAA inspector who interviewed the pilot after the accident reported that the pilot was making a wheel landing. The tailwheel was still airborne when the aircraft rapidly nosed over. The inspector reported finding no evidence of brake malfunction during his on-site inspection. The pilot was executing a wheel landing in the PA-18A-150 following his return from a glider tow operation. Witnesses at the airport reported that the aircraft landed long on the westerly runway (approximately 1,200 feet beyond the threshold of the 2,200 foot long grass/turf strip), and was also fast. During the landing roll the aircraft nosed over. The pilot and an FAA inspector reported finding no mechanical malfunction with the aircraft. The pilot reported a total of 2 hours of flight experience in the make/model aircraft. Source: NTSB Aviation Accident Database (Pre-2008 Archive) Retrieved: 2026-02-12

Verbatim from NTSB's published report. Source file NTSB_2000_SEA00LA167.txt. Findings + structured fields enriched from FAA avall.mdb. Full investigation docket on data.ntsb.gov ↗.