NTSB Identification: CHI08CA298
14 CFR Part 91: General Aviation
Accident occurred Saturday, August 23, 2008 in Algonac, MI
Probable Cause Approval Date: 01/22/2009
Aircraft: LAKE LA-4, registration: N1147L
Injuries: 1 Uninjured.
NTSB investigators used data provided by various entities, including, but not limited to, the Federal Aviation Administration and/or the operator and did not travel in support of this investigation to prepare this aircraft accident report.
The pilot reported that after departure he proceeded to a nearby lake in order to practice water takeoffs and landings. After landing, the water conditions became too rough to safely takeoff. The pilot elected to water taxi to a bay area near an island for smoother conditions. He stated that as he crossed near the southern tip of the island, the airplane struck a submerged object. He estimated the airplane's speed at the time as approximately 6 miles per hour. He steered the airplane toward deeper water; however, after about 3 minutes his feet were under water. He subsequently taxied into water about 3 feet deep and came to rest with the landing gear down. He noted that the airplane normally sat about 18 inches deep in the water. The depth finder did not alert him to the presence of the submerged object prior to the collision.
The National Transportation Safety Board determines the probable cause(s) of this accident to be: The amphibious airplane's collision with submerged debris during taxi for takeoff, and the resulting damage to the hull. Full narrative available
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