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Atlas / NTSB / LAX07CA264

NTSB CAROL · Event

Event LAX07CA264

2007-09-03 Shelton, Washington, United States None 1 aircraft Status: Completed

Registry · N1118H

FAA Aircraft Registry record.

Make / Model

AERONCA S15AC

Engine

LYCOMING I0-360-B1E (180 hp)

Seats / Engines

4 seats · 1 engine

Last airworthiness date

19920826

ADS-B equipped

Yes — Mode-S A03362

Registrant of record

NELSON CHESTER C

Source: FAA Aircraft Registry (releasable master file).

Aircraft involved

Probable cause & findings

The pilot's loss of control during takeoff following the inadvertent encounter with a boat's wake.

Factual narrative

On September 3, 2007, about 1431 Pacific daylight time, a float equipped Aeronca S15AC, N1118H, impacted the water following a loss of control during a water takeoff from Mason Lake, near Shelton, Washington. The float plane was owned and operated by the pilot, and it was substantially damaged. Neither the commercial pilot nor passenger was injured during the personal flight. Visual meteorological conditions prevailed at the time, and no flight plan had been filed. The flight was performed under the provisions of 14 CFR Part 91, and it was commencing at the time of the accident. The pilot reported to the National Transportation Safety Board investigator that during takeoff on the lake the front portion of the left float caught the wake from a boat. Thereafter, the airplane swerved left. The pilot attempted to, but was unsuccessful at, correcting the flight path, and directional control was lost. The airplane's right wing tip impacted the water. The airplane swerved farther left and was damaged. Following recovery of the airplane, an estimated 2-foot-long span of the right wing's leading edge, outbound section, was found crushed in an aft direction. Also, the inboard, aft portion of the right wing was buckled. About 1/3 of the forward portion of both floats was bent upward. The float plane pilot inadvertently encountered a boat's wake during takeoff, and he lost directional control. The airplane swerved left. The pilot attempted to, but was unsuccessful at, correcting the flight path, and the right wing impacted the water. Source: NTSB Aviation Accident Database (Pre-2008 Archive) Retrieved: 2026-02-12

Verbatim from NTSB's published report. Source file NTSB_2007_LAX07CA264.txt. Findings + structured fields enriched from FAA avall.mdb. Full investigation docket on data.ntsb.gov ↗.

Related research

What the literature says.

Academic papers and agency reports matching this event's aircraft type or causal vocabulary (loss of control). Sourced from NASA NTRS, NTSB Safety Studies, FAA CAMI, AOPA Air Safety Institute, Embry-Riddle Scholarly Commons, arXiv, and the Semantic Scholar academic graph.

Browse the full corpus — academia portal ↗