Taiwan’s first two newly built F-16 Block 70 fighters reportedly turned back to Pearl Harbor–Hickam in Hawaii shortly after taking off on September 7 for the next leg of their transit to Guam. The reason has not been publicly confirmed. The aircraft—tail numbers 6727 and 6728—had already spent more than two weeks in Hawaii after arriving from the U.S. mainland in August, further delaying delivery to Taiwan’s Zhihang Air Base in Taitung.

The first two F-16V Block 70 jets Taiwan purchased from the US were spotted unexpectedly turning back after departing from Hawaii yesterday, potentially further delaying delivery…

No official reason has been given for why the initial two aircraft are yet to leave the Pearl Harbour-Hickam base.