Crosswind Lake - King Salmon

On August 8, 2016 at 04:51 PM, Crosswind Lake - King Salmon experienced a crash involving De Havilland DHC-2 Beaver, operated by Rapids Camp Lodge, with the event recorded near Iliamna Alaska.

The flight was categorized as charter/taxi (non scheduled revenue flight) and the reported phase was takeoff (climb) at a lake, sea, ocean, river crash site.

7 people were known to be on board, 0 fatalities were recorded, 7 survivors were identified or estimated. This corresponds to an estimated fatality rate of 0.0%.

Crew on board: 1, crew fatalities: 0, passengers on board: 6, passenger fatalities: 0, other fatalities: 0.

The listed crash cause is human factor. The airline transport pilot of the float-equipped airplane was attempting a takeoff with the load of passengers that he had flown to the lake earlier in the day. The pilot's calculated takeoff distances for the water run and over a 50-ft obstacle were 1,050 ft and 2,210 ft, respectively. The pilot did not add a safety margin to his takeoff distance calculations. The approximate shore-to-shore distance of the takeoff path was 1,800 ft. During taxi, the pilot retracted the wing flaps, where they remained for the takeoff. GPS data showed that the airplane attained a speed of about 49 knots before impacting terrain just beyond the shoreline. The airplane's stall speed with flaps retracted was about 52 knots. Postaccident examination revealed that the left wing flap was in the fully retracted position; the right wing flap assembly was damaged. The airplane flight manual takeoff checklist stated that flaps were to be selected to the "TAKE-OFF" position before takeoff. Additionally, the takeoff performance data contained in the flight manual was dependent upon the use of "TAKE-OFF" flaps and did not account for no-flaps takeoffs. Even if the pilot had used the correct flap setting for takeoff, the calculated takeoff distances were near the available takeoff distance, and it is likely that the airplane would still not have been able to avoid a collision with terrain. The pilot stated that there was no mechanical malfunction/failure with the airplane, and he should have "done the right thing," which was to conduct two flights, each with a half load of passengers.

Aircraft reference details include registration N95RC, MSN 970, year of manufacture 1956.

Geospatial coordinates for this crash are approximately 59.8005°, -154.8815°.