Polk City, FL, USA
N92319
FRANKE RUSSELL J SEAREY
According to the pilot, he taxied the amphibious airplane down a boat ramp following a vintage twin-engine amphibious airplane that weighed more than 6,000 pounds. The other airplane took off, and the accident airplane then encountered a 2- to 3-foot water wake. The pilot "quartered" his airplane into the wake, and, subsequently, the right side pitched up, and the left side pitched down. The pilot then looked at the left horizontal stabilizer via a mirror on the airplane's left wing strut, conducted a full flight control check, and noted no anomalies. The pilot then began the takeoff, and the airplane bounced once along the choppy water surface before becoming airborne. Once airborne, the pilot noted pitch control problems and was not able to level the airplane until it reached about 1,800 feet. He was then able to descend the airplane at a rate of about 50 feet per minute by maintaining airspeed just above stall. The pilot circled the lake six times before being able to land. Upon landing, the right wing bounced twice, and, during the second bounce, the right horizontal stabilizer was substantially damaged when it dragged through the water. Postaccident examination of the airplane revealed a broken outboard left horizontal stabilizer tube that likely broke during the wake encounter. The examination also revealed that the bolt connecting three stabilizer cables had torn into the fabric, which likely resulted in the control stick binding in a pitch-up position upon rotation.
On April 11, 2013, about 1500 eastern daylight time, an experimental amateur-built Searey, N92319, incurred substantial damage during a water taxi, and control binding and additional substantial damage after the subsequent takeoff from Lake Agnes, Polk City, Florida. The private pilot and the passenger were not injured. Visual meteorological conditions prevailed. No flight plan had been filed for the flight, between Lake Agnes and Florida Flying Gators Ultralight Flightpark (3FD4), Groveland, Florida. The personal flight was conducted under the provisions of 14 Code of Federal Regulations Part 91.According to the pilot, he taxied the airplane down a boat ramp, following a 1950's Piaggio twin-engine amphibian that weighed in excess of 6,000 pounds. The Piaggio took off, and the Searey then encountered a 2- to 3-foot wake. The pilot "quartered" the Searey into the wake, and when he did, the right side pitched up, and the left side pitched down. The pilot subsequently looked at the left horizontal stabilizer via a mirror on the airplane's left wing strut and conducted a full flight control check with no anomalies noted. He then took off, with the airplane bouncing once along the choppy water surface before becoming airborne. Once airborne, the pilot noted pitch control problems and was not able to level off the airplane until it reached about 1,800 feet. He was then able to descend the airplane at a rate of about 50 feet per minute by maintaining airspeed just above stall. The pilot circled the lake six times before being able to land. The landing included two bounces of the right wing, and during the second bounce, the right horizontal stabilizer was substantially damaged when it dragged through the water. Postflight examination of the airplane revealed a broken outboard left horizontal stabilizer tube which the pilot believed occurred during the wake encounter. It also revealed that the bolt connecting the three stabilizer cables had torn into the fabric, which the pilot surmised resulted in binding the control stick in a pitch-up position upon rotation.
An inadvertent encounter with the water wake from a larger amphibious airplane before takeoff and the pilot's subsequent inadequate preflight inspection of the airplane during which he failed to note damage caused by the wake encounter.
Source: NTSB Aviation Accident Database
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