A military aircraft from the United States declared an emergency while in flight and then vanished from the radar. The Boeing KC-135 Stratotanker, known as a ‘flying gas station’ for US military planes, sent out the distress signal 7700 over the Persian Gulf during heightened tensions with Iran. It departed from the Al Dhafra Air Base in the UAE and lost communication near Qatar, as per Flightradar24 data.
The plane has been assisting US military operations in the Middle East amid ongoing conflicts since late February. Flight tracking data displayed the aircraft following a circular route before descending for landing. The specific cause of the emergency is unknown, as the 7700 distress signal covers various potential issues.
When a pilot inputs the emergency code 7700 into the transponder, it notifies air traffic control immediately about the distress situation, requiring priority handling. This code serves as a general indicator for any emergency aside from hijacking (7500) or radio failure (7600).
Following the detection of the emergency code on flight tracking platforms, the aircraft’s transponder signal was lost about an hour later as it headed towards Qatar, a common operating area for US aircraft in the region. Reports indicated that H125 light utility helicopters were observed in the vicinity after the signal was lost. Iran’s Fars news agency also reported the disappearance using information from Flightradar24.
The KC-135 Stratotanker provides aerial refueling support for US Air Force operations, boasting four turbofan engines mounted under 35-degree swept wings, enabling takeoffs at weights up to 322,500 pounds. Depending on the fuel configuration, the KC-135 can transport up to 83,000 pounds of cargo, according to the US Air Force.
In a separate incident in March, the US military lost a KC-135 in western Iraq during Operation Epic Fury. Central Command confirmed the loss, stating it occurred in friendly airspace and that rescue operations were ongoing. The incident involved two aircraft, with one going down in Iraq while the other landed safely, unrelated to hostile or friendly fire.
