SINGAPORE — Official updates on Indonesia’s adoption of Boeing’s F-15EX fighter jet have been scant, since Jakarta announced a memorandum of understanding for up to 24 aircraft back in August 2023. Boeing officials have now admitted the prospective sale is dead in the water. “In terms of our partnership with Indonesia, it’s no longer an active campaign for us,” a Boeing executive said Tuesday, the opening day of the Singapore Airshow . Bernd Peters, vice president of business development and