LAX83FA387

The acft departed creswell, OR, sometime after 1800 PST on 3/19/83. At 2110 PST, the plt contacted portland flt watch by radio & stated that he was over roseburg, or at 9500 ft. he requested pireps of wx over the siskiyou mountains & into the san francisco bay area. Flt watch advised that the medford, or wx was estimated 8000 ft overcast, visibility 10 mi & that a plt had reported that conditions from redmond, or to red bluff, CA, at 9500 ft, were clear & smooth. The plt replied that he was having a smooth ride, on top, & that there was 'a little bit of buildups to the west.' There were no further transmissions from the acft. When the acft did not arrive at its destination, a search was initiated. It was found by hikers on 8/15/83 where it had crashed in mountainous terrain while in a steep dive. At the time of the accident, search personnel could not get into the area due to low clouds, rain & snow. An exam of the wreckage revealed no evidence of a preimpact/mechanical malfunction or failure.