By Bradley Jolly A flight from Manchester Airport has made an emergency landing this afternoon. A TUI plane, reported to be a Boeing 737-800, declared an emergency after leaving the hub at 3.33pm. It issued a Squawk 7700 emergency code, which indicates a “serious issue onboard the aircraft” and made an unplanned landing at Exeter Airport in Devon at 4:17pm. The plane landed safely. TUI confirmed it was a “repositioning flight”, where airlines move planes in their fleet from one airport to another without goods or passengers. The firm said the landing was sparked by a “technical issue” with the…