Twin-Engine Charter Flight Crashes in Wooded Area Near Noviny pod Ralskem (OK-TKF)

Incident Overview and Flight Details A twin-engine aircraft departed from Příbram Airport Runway 06 at 0705 local time on a charter flight to Gdansk. The aircraft was carrying one pilot and one passenger. Approximately 30 minutes into the flight, while cruising at an altitude of 14,100 feet, the pilot was cleared to climb to Flight Level 180. At that time, the pilot declared an emergency and reported the failure of both engines. The aircraft subsequently entered an uncontrolled descent and crashed in a wooded area located 1.5 kilometers northeast of Noviny pod Ralskem, bursting into flames. The aircraft was destroyed by impact forces and a post-crash fire, and both occupants were killed. ## Official Findings and Contributing Factors The official investigation determined that the accident was caused by an inner mechanical defect in the left engine, which was past its stipulated Time Since Overhaul (TSO). This defect caused a forced stall of the engine, preventing the propeller on that engine from being feathered. During the shutdown of the right engine, the feathering of the propeller on that engine also did not take place. As a result, the aircraft entered a fall and a stall-spin, leading to the crash. Contributing factors identified by the investigation included the left engine's TSO exceeding the stipulated limit of 12 years, with the last general overhaul performed on 29 October 2001, and the limited experience of the pilot on this type of aircraft.