Accident Description
A pilot was demonstrating a confined area takeoff from a remote lake during a Part 135 Visual Flight Rules (VFR) competency check. The airplane was equipped with floats. The check airman, seated in the right seat, instructed the pilot to begin the takeoff run 90 degrees from the prevailing wind and then turn into the wind as the airplane accelerated for departure.
Sequence of Events
During the takeoff water run, the pilot failed to turn away from the shoreline. The airplane was nearly on the step when the shoreline jutted out perpendicular to the takeoff run. The pilot attempted to force the airplane into the air by applying flaps and pulling aft on the control yoke. The airplane impacted the shore, bounced into the air, and slid across the ground for approximately 100 yards before nosing down.
Damage and Mechanical Condition
The airplane sustained substantial damage to the left wing. The pilot reported no preaccident mechanical malfunctions or failures that would have precluded normal operation.
Recommendations
In the recommendation section of the NTSB Accident/Incident Reporting Form 6120.1, the check airman stated that the accident may have been prevented if he had ensured the pilot understood his instructions, or if he would have discontinued the maneuver before an unsafe condition developed.