Casualties unknown

Floatplane Damaged in Lake Takeoff Attempt, Tree Strike During Emergency Landing (N4711U)

Minocqua, WI, US

On May 17, 2003, a Piper PA-11 (registration N4711U) was involved in an aviation accident near Minocqua, WI. Investigators recorded the probable cause as: The pilot's failure to attain a proper climb rate during takeoff. A factor to the accident was the tree. This summary draws on records from the U.S. National Transportation Safety Board (NTSB) historical archive.

Sourcesthe U.S. National Transportation Safety Board (NTSB) historical archivePrimary reportUpdated 2026-06-10Data APIEditorial standards
Aircraft registered N4711U
Aircraft registered N4711U. Photo: Aero Icarus from Zürich, Switzerland / CC BY-SA 2.0, via Wikimedia Commons

A floatplane sustained substantial damage during a takeoff attempt from a lake; the pilot reported the aircraft failed to climb out, leading to an emergency landing in a bog where a wing strut hit a tree.

Accident Details

The airplane sustained substantial damage while attempting to take off from a lake. The pilot reported that during the takeoff attempt, the airplane "failed to climb out of lake at end of cove." Subsequently, the pilot "reduced power and turned to land in a bog/swamp." During the landing approach, the left wing strut impacted a tree, and the airplane landed hard on its floats.

Pilot Account

The pilot stated that the airplane was unable to gain sufficient altitude to clear the end of the cove during the takeoff run. In response, he reduced engine power and maneuvered the aircraft toward a bog or swamp area to land. The landing was not successful as the left wing strut struck a tree before the plane touched down on the floats.

Previous Experience

The pilot reported having flown 5 hours in the same make and model as the accident aircraft, all of which were flown within the 24 hours preceding the accident. This recent experience provided familiarity with the aircraft type but did not prevent the occurrence.

Aircraft Condition

According to the pilot, there were no mechanical malfunctions or failures during the accident flight. The aircraft's systems and structure were reported to have been functioning normally prior to and during the attempted takeoff and subsequent emergency landing.

Investigation report by the U.S. National Transportation Safety Board (NTSB) historical archive. Original record: https://carol.ntsb.gov/event/20030603X00764. This page is a structured re-presentation; facts and quotes are in the National Transportation Safety Board (NTSB), United States.