Primary finding
Probable cause
The pilot's improper in-flight planning/decision by failing to allow enough time for the rotor wash to dissipate before attempting the approach. The wake turbulence (rotor wash) was a factor in this accident.
Investigator assessment
Analysis narrative
The local controller cleared the flight for a straight in approach to runway 20 to follow a large helicopter. The controller cautioned the pilot of possible existing wake turbulence. While nearing the threshold the airplane encountered some turbulence and the pilot initiated a go around. During the go around the airplane encountered more severe turbulence and could not control the airplane. The airplane struck the runway and skidded to a stop. The pilot reported that the surface winds were from 180 degrees at 10 knots, gusting to 15 knots.
Source record
Factual narrative
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