The airplane was substantially damaged at about 1619 Eastern time during a forced landing following a total loss of engine power. The airline transport pilot and three passengers were seriously injured. Visual conditions prevailed.
The airplane was in cruise flight at 8000 feet msl when the pilot requested a descent to 6000 feet due to turbulence and rime icing. The pilot then switched both engines from auxiliary to main fuel tanks. Shortly, the left engine began to surge. As the pilot attempted to restore the left engine to full power, the right engine surged. As the pilot performed remedial actions to restore power to the right engine, the left engine stopped producing power. Within seconds, the right engine stopped producing power.
