PIPER PA 18-150

Dillingham, AK — July 21, 2015

Event Information

DateJuly 21, 2015
Event TypeACC
NTSB NumberANC15LA056
Event ID20150727X42358
LocationDillingham, AK
CountryUSA
Coordinates59.05000, -158.58139
AirportSHANNONS POND
Highest InjuryNONE

Aircraft

MakePIPER
ModelPA 18-150
CategoryAIR
FAR Part091
Aircraft DamageSUBS

Conditions

Light ConditionDUSK
WeatherVMC

Injuries

Fatal0
Serious0
Minor0
None2
Total Injured0

Event Location

Probable Cause

The pilot's failure to attain adequate airspeed during initial climb after takeoff, which resulted in an aerodynamic stall. Contributing to the accident was the pilot's improper decision to continue a takeoff even though the airplane was not airborne by the planned takeoff decision point.

Full Narrative

On July 20, 2015 about 2115 Alaska daylight time, a float equipped, Piper PA-18-150 airplane, N8761C, sustained substantial damage shortly after takeoff from Shannons Pond (0Z3), Dillingham, Alaska. The pilot and passenger were uninjured. The airplane was registered to, and operated by, the private pilot under the provisions of Title 14 Code of Federal Regulations (CFR) Part 91 as a personal flight. Visual meteorological conditions prevailed at the time of the accident, and a visual flight rules (VFR) flight plan was filed.

In a statement provided to the National Transportation Safety Board (NTSB) investigator-in-charge (IIC), the pilot stated that during takeoff, after reaching the planned takeoff decision point, full flaps were applied. The airplane immediately became airborne and climbed about 40 feet above ground level (agl).Once reaching that altitude, the airplane did not have the necessary airspeed to continue climbing. In an effort to avoid impacting the trees ahead, a left bank was initiated and the airplane impacted a flat area of muskeg adjacent to Shannons Pond.

A post-accident engine exam revealed no mechanical anomalies or malfunctions that would have precluded normal operation. The spark plugs were removed and the propeller was rotated and compression was observed.

The closest weather reporting facility is Dillingham Airport, Dillingham, about 3 miles southeast of the accident site. At 2053, an aviation routine weather report (METAR) from the Dillingham Airport was reporting in part: wind from 110 degrees at 7 knots; sky condition, scattered at 8,000 feet agl, scattered at 15,000 agl, broken at 15,000 feet agl; visibility, 30 statute miles; temperature 68 degrees F; dewpoint 52 degrees F; barometric pressure 29.94 inHg.

About This NTSB Record

This aviation event was investigated by the National Transportation Safety Board (NTSB). NTSB investigates all U.S. civil aviation accidents to determine probable cause and issue safety recommendations to prevent future accidents.

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