https://theaviationist.com/2020/09/17/v ... n-mission/
On Sept. 15, 2020, the Boeing 707-321B carrying civil registration N404PA, recently renamed “Sashambre” (previously, “Hannah” and “Paul Revere”), flew its final data collection mission. The following day, on Sept. 16, the aircraft flew its last training flight. It will be prepared and then it will fly to Davis-Monthan Air Force Base to be retired at the “scrapyard”.