Accident Description
An airline transport certificated pilot, accompanied by four passengers, fishing equipment, and a dog, was departing on a personal flight from a remote gravel airstrip. The airstrip measured 1,100 feet in length and 10 feet in width. According to the FAA's Airport/Facility Directory, Alaska Supplement, the airstrip featured "dips and humps 8 to 12 inches entire length. Rocks on surface to 3 inches. Runway used as a road."
Pilot Statement
The pilot reported to the NTSB investigator-in-charge that during the takeoff roll, the airplane became airborne in ground effect. Shortly thereafter, engine power rapidly decreased, and the airplane settled into approximately 12 inches of water in a tidal zone. The pilot noted that the airplane had flown through heavy rain in the previous four days but had encountered no issues until the accident takeoff.
FAA Inspector Observations
An FAA inspector interviewed the pilot and passengers. According to the inspector, the pilot stated that the airplane became airborne after hitting bumps about two-thirds of the way down the runway. The pilot attempted to maintain altitude in ground effect, but the airplane settled onto soft ground beyond the runway end, which was covered by high grass and water. Based on the interviews, the inspector estimated the airplane was within 100 pounds of its gross weight limit. The inspector also noted that local air taxi operators only use the airstrip with reduced loads due to its surface condition.
Aircraft Damage and Recovery
The airplane sustained structural damage to the right wingtip and right wing root. Sufficient structural and propeller repairs were performed at the accident scene, allowing recovery personnel to fly the airplane out. The recovery team reported no engine problems during the repair or subsequent flight.