Serious incident – lack of separation between the aircraft G-RJXF, of the type Embraer 145, and SE-VKA, of the type Zephyr 2000C, south of Norrköping

During approach to Norrköping Airport, the aircraft G-RJXF sank through the cleared altitude and into uncontrolled airspace. In the uncontrolled airspace was the aircraft SE-VKA. G-RJXF’s Traffic Collision Avoidance System (TCAS) alerted and gave a resolution advisory to climb. G-RJXF then continued and landed at Norrköping Airport. The separation was about 200 feet vertically and 0.85 M laterally.