Beechjet 400
Flight Crew Multiengine; Flight Crew Air Transport Pilot (ATP); Flight Crew Flight Instructor; Flight Crew Instrument
Flight Crew Last 90 Days 25; Flight Crew Total 8000; Flight Crew Type 3000
Workload
Aircraft Equipment Problem Critical; Inflight Event / Encounter Bird / Animal
Flight Crew Took Evasive Action
Aircraft; Environment - Non Weather Related
Had just crossed over midfield getting ready to enter left downwind for at ZZZ (uncontrolled field). Aircraft was level at 1500ft; flaps 20deg; 160kts IAS. Just as I was getting ready to turn downwind I saw a flash go by the left window (what appeared to be a goose from surrounding birds). The bird flew into the left engine causing the N1 to start rolling back. There were no warning lights (oil pressure; hydraulic; etc) as at that time the core of the engine was still running. However due to a bad vibration caused from the strike we had to shut the engine down. We continued in the pattern and landed safely with no issues. Did not declare an emergency (was on Unicom with no other traffic) and didn't roll the trucks as there was no fire (just single engine landing).
BE40 Captain reported a bird strike in the number 1 engine while on downwind at an uncontrolled airport. Landing on one engine was accomplished shortly after.