A U.S. military Boeing KC-135 Stratotanker transmitted a 7700 emergency distress signal while flying over the Persian Gulf near the Strait of Hormuz on Tuesday May 5, 2026, according to flight tracking data. The aircraft, which departed from Al Dhafra Air Base in the United Arab Emirates, was later no longer visible on public tracking platforms, including Flightradar24. Its status remains unconfirmed.

Tracking data showed the tanker circling before descending, suggesting a possible attempt to divert or land. The signal was lost as the aircraft moved toward airspace near Qatar, where U.S. forces maintain operations. No official statement has been issued by the US Air Force regarding the incident. There are no confirmed reports of a crash, debris, or search and rescue activity.

A 7700 squawk code is used internationally to indicate a general in-flight emergency. However, the loss of transponder data does not necessarily signal an accident, as military aircraft may disable tracking systems for operational reasons. The Persian Gulf region remains highly sensitive due to its strategic importance and proximity to Iran. Authorities in the region have not reported any related activity.

The KC-135 Stratotanker is a long-serving aerial refueling aircraft widely used to support U.S. military operations across the Middle East and globally.