Incident Overview
The pilot of an airplane reported that during his approach to runway 30, he observed strong gusty winds and low-level wind shear conditions. To compensate, he increased his approach airspeed and left the flaps in their retracted position.
Sequence of Events
While continuing over the approach end of the runway, the airplane entered an area with a high sink rate. The pilot immediately applied full power to arrest the descent. With full power applied and the airplane's nose approximately 5 degrees above the horizon, the airplane began to climb slowly. At that moment, the pilot encountered a strong, gusting, right quartering headwind that lifted the right wing, resulting in a loss of altitude.
Landing and Impact
As the airplane touched down beyond the departure end of the runway, the pilot closed the throttle. The airplane subsequently rolled through a fence before coming to a stop.
Weather Conditions
At the time of the incident, the closest weather reporting station, San Francisco International Airport (SFO), reported winds from 360 degrees at 18 knots, gusting to 22 knots.