British Airways flight to Chicago drops 28,000 feet, returns to London

LONDON — A British Airways passenger jet from London to Chicago descended 28,000 feet in just seven minutes on Monday after declaring an emergency because of an unspecified “technical issue,” the airline said. The Boeing 777 took off at 12:15 p.m. local time (7:15 a.m. ET) but made the descent just 30 minutes later while flying over Ireland, according to flight tracking website FlightAware. It turned around and spent around four hours zig-zagging over the Bristol Channel, a waterway to the west of England, before landing back at London Heathrow Airport at 5 p.m. local time (noon ET). “The aircraft...