Built by Nakajima as S/n 1066. Abandoned at Clark Field and captured intact by the US Army. Repaired and repainted in American markings. Tested by TAIU-SWPA as aircraft no.10 with tail code S10 at Clark Field, Philippines. during June 1945, This aircraft was probably flown twice by TAIU-SWPA before crashing on a test flight. Afterwards, it was possibly used for spare parts.
- Wieliczko, Leszek A. Nakajima Ki-84 Hayate. Lublin, Poland: Kagero, 2005. ISBN 83-89088-76-2, page 64