Accident Sequence
The airplane impacted trees and terrain while maneuvering to return to the departure airport after takeoff. A witness, who was piloting another airplane and observed the takeoff, described the departure as appearing "normal." After takeoff, the witness noticed the accident airplane approximately 1.5 miles from the departure airport. It was in a bank of 45 to 60 degrees, turning back toward the airport, and flying below the level of a tree line. The airplane subsequently struck the tree line and came to rest in an agricultural field.
Post-Accident Inspection
A post-accident inspection of the airplane revealed no anomalies associated with a pre-impact failure of the flight control system. Examination of both engines did not reveal any failures or malfunctions consistent with a loss of engine power prior to the accident. Examination of the left alternator indicated that it was unable to provide the rated electrical power. Examination of the right alternator did not reveal any anomalies, and the unit appeared to be functional.
Pilot Acquaintance Statement
According to an acquaintance of the pilot, the accident airplane was en route to a maintenance facility for a routine annual inspection. The acquaintance noted that the left alternator appeared to be inoperative prior to the accident flight and that the mechanic had been advised to look at it during the inspection. He knew of no other problems with the airplane prior to the accident flight.