Falcon 20FJF/20C/20D/20E/20F
Flight Crew Flight Instructor; Flight Crew Air Transport Pilot (ATP); Flight Crew Multiengine
Flight Crew Last 90 Days 200; Flight Crew Total 5151; Flight Crew Type 695
Aircraft Equipment Problem Critical; Flight Deck / Cabin / Aircraft Event Illness / Injury; Ground Event / Encounter Loss Of Aircraft Control; Ground Event / Encounter Ground Strike - Aircraft
Aircraft Aircraft Damaged; Flight Crew Landed in Emergency Condition; Flight Crew Inflight Shutdown; General Physical Injury / Incapacitation
Aircraft
After reaching our cruising altitude of FL270; I checked our windscreen for ice and saw trace amounts. I turned on both engine anti-ice switches. Almost immediately; a thump was felt and the left engine rolled back and failed. I disconnected the auto pilot; and took the controls from the flying pilot. After taking a few moments to assess the situation I called for the engine out checklist; which [the FO (First Officer)] had already started turning to. I spoke to Center and requested direct to [a nearby alternate]; which I knew was mostly clear of mountains and obstacles and nearby. Center advised that [that airport] has no services at this time; and suggested [a different alternate]; and cleared us direct. After completing the shutdown checks for the left engine I continued to assess our situation and decided that [an] air start attempt would be appropriate. [The FO] ran the air start procedure by the checklist; and as soon as the left engine came back to life; the right engine immediately rolled back and failed in the same manner as the left had earlier. At this time we were approaching [the alternate] and I knew we were in trouble due to the fragile state of the left engine. In a few minutes the left engine indeed failed and we were now less than 10;000 ft AGL and descending dead stick at 2-3000 ft./m. Since we could not see the airport below cloud cover I used the Garmin GPS moving map to identify my position relative to the runway. I attempted a steady right turn from over field to base to final but came up short as I ran out of altitude and airspeed; striking trees at approximately 130 knots; and coming to a rest in a cornfield. FO complained immediately of a hurt shoulder; and after a few seconds of self-assessment I realized that I was uninjured. After getting up to attempt to open the main door; I looked forward again and saw [the FO] halfway out my window. We both egressed to the left side of the plane and phoned company and family and waited for emergency services to arrive. At this time I do not know what caused the engine failures; though the dual failure would suggest fuel contamination or FOD ingestion. We were unable to inspect the engines ourselves after the landing.
DA20 Captain reported executing a forced landing after losing both engines in flight.