Can you establish that the T-901 had been flown on the AH-64 platform?
https://rucker.armymwr.com/application/files/8116/9204/4903/AV_Industry_Days_2023_Briefings_.pdf#page=14
Indicates that it was still in the planning phase, to begin a pilot program in Fy29, but was planned to deliver 3850 SHP [Pg # 43] after all improvements to the Turbine, Rotor and Drive Train are complete.
As it seems like ITEP was canceled due to the planned FARA airframe falling though.
Though it had been deployed on two test SH-60s. It’s likely to be held in reserve for a potential Interim AH-64F configuration should the Army be interested in future.