The final report on the high speed RTO overrun with a PSA Airlines CRJ2 at Charleston on Jan 19th 2010, has been released:
DCA10IA022
From the report:
The Capt. stated that he did not think the first officer had called out V1 before he initiated the RTO. The F/O stated that he thought that the RTO was initiated before reaching V1 and that he knew that an RTO should not occur after reaching V1.
NTSB Report: “The captain initiated a rejected takeoff (RTO) about 5 seconds after he started moving the flaps and when the airplane was at an airspeed of about 140 knots, which was 13 knots above V1.”