A U.S. Air Force Boeing kc-135 stratotanker reportedly vanished from radar over the Gulf after transmitting a 7700 emergency squawk, a signal that points to a serious onboard problem.
The aircraft’s disappearance came after the emergency code was broadcast, turning a routine tanker flight into an incident now drawing close attention. Tankers are essential for extending the range of combat aircraft, and a loss of radar contact from one of them matters because aerial refueling supports U.S. military operations worldwide.
The concern does not stop with the KC-135. A second report involving a KC-46 Pegasus adds another layer of unease around the U.S. Air Force refueling fleet, which is built to keep aircraft in the air longer and farther from base.
What stands out is the timing: the 7700 squawk was sent before the aircraft vanished from radar, which leaves the central question focused not on whether there was a serious problem, but on what happened to the tanker after that signal went out.






