Piper PA-18-150 N4070Z accident near Three Lakes, Wisconsin

Nov 1, 2009 · NTSB number CEN10CA038 · Final report

Probable cause

The pilot's improper flare and touchdown during the water landing.

NTSB analysis

The pilot reported that he was landing the float equipped airplane on a lake. The winds were light and the lake had about 3 inch ripples on the water. He reported that the touchdown appeared normal, but a few seconds later the right wing went up and the left wing dipped in the water. The left wing was bent upward and sustained substantial damage. A witness reported that he observed the airplane flying slow over the water in a left bank when the airplane “dropped into the lake” with the left wing hitting the water. The pilot reported there was no mechanical malfunction of the airplane.

Text from the NTSB. Open the NTSB docket for CEN10CA038 for the full record.

Event

Date
Nov 1, 2009
Type
Accident
Place
Three Lakes, Wisconsin
Nearest airport
Three Lakes Marina (40G)
Highest injury
None
Weather
Visual (VMC)
Light
Day

Piper PA-18-150

N-number
N4070Z
Category
Airplane
Damage
Substantial
Operating rule
Part 91 (general aviation)
Purpose of flight
Personal

From the NTSB aviation accident database: N-registered aircraft, events since 2008, data through Oct 28, 2026. The file is published monthly, so the latest weeks are incomplete and recent records can change. The official source is the NTSB aviation investigation search. CheckAero is independent and not affiliated with the NTSB.