Small Aircraft; Low Wing; 2 Eng; Retractable Gear
Flight Crew Commercial; Flight Crew Flight Instructor; Flight Crew Instrument; Flight Crew Multiengine
Flight Crew Last 90 Days 293; Flight Crew Total 915; Flight Crew Type 695
Communication Breakdown
Conflict Ground Conflict; Critical; Deviation / Discrepancy - Procedural Published Material / Policy; Ground Incursion Runway
Flight Crew Executed Go Around / Missed Approach; Flight Crew Took Evasive Action
Human Factors; Procedure
Cancelled IFR with Lake Charles approach and continued visually into 3R7. Entered the left downwind and saw an aircraft holding short of runway 26. Made the appropriate downwind radio call. Made a turn to base and made the appropriate radio call. Turned final and called final on the radio. When on short final the aircraft holding short entered runway 26 for takeoff. We did a go around on the right side. The aircraft who entered the runway continued his take off and proceeded north. We entered a right downwind and landed. An [aircraft] landing Runway 35 witnessed it; that pilot and I were in radio communications during pattern for our respective runways. The aircraft which was the cause of the incident never made a radio call.
GA flight instructor reported another aircraft entered the runway without CTAF announcement; causing a ground conflict.