Sequence of Events
The pilot made a departure and received clearance to climb to 9,000 feet. During the final portion of the climb, the rate of climb decreased. After reaching 8,000 feet, the airplane entered a descent to 4,100 feet, then climbed to 5,100 feet. The airplane then entered another descent, leveled off at 3,800 feet, and disappeared from radar. Subsequently, the airplane descended and crashed in mountainous terrain.
Witness Reports
Witnesses reported that the engine was operating at a high power setting before impact.
Weather Conditions
Icing conditions were present. The pilot had commented about encountering ice on his previous flight to Rochester. Additionally, there were reports of moderate rime icing from an MD-80 and a Beech 99.
Investigation Findings
No pre-impact part failure or malfunction was found.