Description

On 13 October 2008, a DHC-8 Q400 was on heading 056 inbound to Newcastle and in receipt of Radar Advisory Service in Class 'G' Airspace. It was rerouted to avoid Spadeadam Danger Area (EGD510), which was active with an extended vertical limit as published by Notice To Airmen. Approximately 24 nm west of Newcastle, the aircraft was instructed by Newcastle RADAR to stop descent and turn left 010 as Avoiding Action because of unknown traffic passing from right to left and climbing from below the current altitude of the DHC-8. A TCAS TA then occurred followed quickly by a TCAS RA to DESCEND. This was followed and the ATC left turn instruction then acknowledged. After the DHC-8 turned left onto 010 there was another TCAS TA. The ATC avoiding action had resulted in the DHC-8 entering the Danger Area EGD510.