Search under way after Boeing 737 cargo plane goes missing off Pakistan coast

A Pakistan-registered Boeing-737" class="entity-link entity-organization" data-entity-id="43787" data-entity-type="organization">Boeing 737 cargo plane with five crew members on board lost contact with air traffic control on ⁠Tuesday night after reporting a navigational ⁠system problem on ​its way to Karachi, Pakistan aviation authorities said.Early flight data indicated the 27-year-old converted freighter operated by K2 Airways from Sharjah in the United Arab Emirates possibly crashed into the sea ⁠southwest of Karachi after a series of sharp altitude changes, before a steep final descent, according to flight-tracking service Flightradar24.Authorities have launched a coordinated search-and-rescue operation at sea through various agencies to locate ⁠the missing plane, Pakistan Airports Authority said.K2 Airways said it was cooperating with the Pakistan-civil-aviation-authority" class="entity-link entity-organization" data-entity-id="160918" data-entity-type="organization">Pakistan Civil Aviation Authority and other ​government agencies.“We continue to pray, earnestly, for the safety ‌of our colleagues,” the aircraft operator ‌said on Facebook. Boeing did not immediately respond to requests for comment.The plane reported a navigational system issue at 9.18pm Pakistan ‌Standard Time (16.18 GMT) while flying toward Karachi, the airports authority said.Local air traffic control tried to guide the aircraft, but three minutes later radar systems showed the plane descending rapidly, and communication was lost, the authority said. The flight was about 287km west of Karachi at the time, according to the statement.Flightradar24 tracking data showed the plane plunged about 5,000 feet in less than a minute, surged back 6,000 feet in just 30 seconds, before ‌a dive from 36,550 feet. The last transmitted data point placed the aircraft at 1,100 feet above sea level, with a vertical rate of minus 22,400 feet per minute – about 400 kilometres per hour – an ​extremely steep and abnormal rate of descent.“Anytime you see something extreme like that, it catches your eye, but it is too soon to say what any of it means without more information,” said Anthony Brickhouse, an aerospace safety consultant.The missing aircraft is part of Boeing’s decades-old 737 family but is two generations older than the 737 MAX version that was involved in a recent safety crisis.It is K2 Airways’ only aircraft and entered into service with the carrier in ​2024. Before the last flight, ‌it had not flown since 28 ​June, according to ​Flightradar24 data.