TF-104G-M "N991SF" "Starfighters" during tests fights at Grosseto June 16, 2023 TF-104G, MM54258, construction number 583H-5209, model 583-10-20, built by Lockheed After almost 20 years since its retirement in 2004, a F-104 Starfighter flew again in Italy at Grosseto Air Base on June 12, 2023. The aircraft, which now belongs to Starfighters Aerospace and sports the FAA serial N991SF, is the former Italian Air Force TF-104G-M that operated for more than 30 years as MM54258 with the 20° Gruppo (Squadron), the Italian F-104 OCU (Operational Conversion Unit) based at Grosseto. copyright © Osvaldo Ciurleo