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N9996D accident description

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Tail numberN9996D
Accident dateApril 01, 2009
Aircraft typePiper PA-22-150
LocationSherwood, OR
Near 45.335555 N, -122.924445 W
Additional details: None

NTSB description

On April 1, 2009, about 0735 Pacific daylight time, a Piper PA-22-150, N9996D, collided with terrain near Sherwood, Oregon. The pilot/owner was operating the airplane under the provisions of 14 Code of Federal Regulations (CFR) Part 91. The certificated private pilot and one pilot rated passenger were killed; the airplane sustained substantial damage. The cross-country personal flight departed Lusardi Field, Salem, Oregon, at 0711 PDT, with a planned destination of Hillsboro, Oregon. Visual meteorological conditions prevailed at the Aurora State Airport, Aurora, Oregon, which was 106 degrees at 8 nautical miles from the accident site. Instrument meteorological conditions prevailed at the accident site, and no flight plan had been filed.

A witness reported that he was standing in his driveway when he heard an airplane circling overhead, but could not see it due to the foggy conditions. He estimated that the airplane was about 100 feet above him, and the visibility was about 30 feet. The engine was sputtering and backfiring, but then went quiet. He was looking into the fog when the airplane suddenly appeared. He only recalled seeing the wing and a light, and estimated that the airplane was in a 90-degree bank angle. He ducked and estimated that the airplane flew less than 10 feet over his head, and then struck the ground less than 50 feet away. One other family member was in the garage, and also heard the engine sputter. Another family member in the basement did not hear the engine sputter.

Another witness was in his garage about 1/4 mile away. He did not recall hearing the airplane while it was flying around; however, he thought that he heard the engine race up just prior to the sound of impact.

A review of recorded radar data revealed a target on a northerly course at 0721 that maintained a straight track toward the accident area. At 0725:58, the target had a mode C recorded altitude of 1,600 feet mean sea level (msl). It maintained this altitude plus and minus 100 feet for the next several minutes, and then went to a mode C altitude of 1,400 feet for about 1 minute. The target then began to climb. It reached its peak altitude of 2,400 feet at 1432:45, and began a turn to the left as it approached the area of the accident site. The target continued the left turn, which was followed by a right turn making a figure-8 pattern. The altitude varied between 2,100 and 2,300 feet during the figure-8 turn. As the target completed the figure-8, it continued the turn to the right, and the altitude decreased to 1,800 feet for the last two targets with altitude recordings. The last of these targets was at 0734:52. Estimated elevation at the accident site was 940 feet.

(c) 2009-2011 Lee C. Baker. For informational purposes only.