TUI flight from Lanzarote to Newcastle declares 'squawk' emergency at 17,000ft

A TUI flight travelling from Lanzarote to Newcastle declared a 'squawk' emergency while flying at 17,000ft. The aircraft eventually landed at its planned destination, although it arrived approximately 45 minutes behind schedule following a late departure. It remains unclear what specific trigger caused the crew to activate the emergency code during the journey from the Spanish island. Passengers reached Newcastle airport safely despite the midair incident and the delays experienced during the flight's operation.