A C310 VEERS OFF THE SIDE OF THE RWY DURING A SIMULATED ABORTED TKOF. A MIXUP IN THE ACTIONS EXPECTED AND REQUIRED BY THE TRAINEE AND THE INSTRUCTOR PLT.

Narrative

THE SUBJECT FLT WAS THE THIRD TRAINING FLT OF A FLT INSTRUCTOR; MULTI-ENG SYLLABUS. THE PLAN WAS TO HAVE THE STUDENT FLY THE ACFT FROM THE L SEAT FOR THE FIRST 3 FLTS OF THE SYLLABUS AND THE REMAINING TRAINING FLTS FROM THE R SEAT. ALTHOUGH THE STUDENT WAS AN EXPERIENCED AVIATOR; RETIRED MIL INSTRUCTOR PLT; AND PREVIOUS SIMULATOR/CLASSROOM INSTRUCTOR; HE HAD NO PREVIOUS TIME IN RECIPROCATING TWIN ENG ACFT. THEREFORE; 3 TRAINING FLTS FROM THE L SEAT WERE PLANNED FOR ACFT ORIENTATION AND FAMILIARITY; PRIOR TO TRANSITIONING TO THE R SEAT. THE SUBJECT TRAINING FLT ORIGINATED AT ICT WITH PLANNED TRAINING AT HUT; AND RETURN TO ICT. PRIOR TO THE FLT; WE REVIEWED THE PROCS TO BE ACCOMPLISHED. THE ACFT WAS PREFLTED; THE ENGS WERE STARTED AND WE TAXIED TO RWY 32. A RUN-UP AND BEFORE TKOF CHKLIST WAS COMPLETED AND WE DEPARTED PERFORMING A MAX PERFORMANCE TKOF FROM ICT DESTINED FOR HUT. ICT DEP INSTRUCTED US TO SQUAWK VFR AND CONTACT HUT TWR; AFTER WHICH HUT TWR INSTRUCTED TO RPT A 4 MI STRAIGHT-IN APCH TO RWY 31. CLOSER IN TO THE RWY; WE REQUESTED AND WERE GIVEN THE OPTION FOR RWY 31. A 2-ENG GAR PROC WAS PERFORMED AND WE ENTERED L TFC FOR RWY 31. A SIMULATED ENG FAILURE WAS CONDUCTED ON DOWNWIND ENDING IN AN UNEVENTFUL FULL STOP SINGLE ENG LNDG. AFTER LNDG; WE TAXIED BACK FOR TKOF; AND AGAIN REVIEWED AND BRIEFED THE NEXT SEQUENCE; WHICH WAS TO BE AN ABORTED TKOF. AFTER REVIEWING THE ABORTED TKOF PROCS; INCLUDING THE IMPORTANCE OF IMMEDIATELY RETARDING THE THROTTLES TO IDLE AND BRAKING. SINCE THIS WAS THE FIRST SIMULATED ABORTED TKOF ATTEMPTED; I ALSO TOLD STUDENT IT WOULD BE THE R ENG THAT WOULD FAIL. I INFORMED HUT TWR THE NEXT TKOF WOULD BE A SIMULATED ABORTED TKOF AND TAXI-BACK. WE WERE CLRED FOR TKOF ON RWY 31. THE STUDENT APPLIED TKOF PWR; STARTED THE TKOF; AND AT APPROX 50 MPH; I RETARDED THE R ENG MIXTURE; SINCE THERE WAS NO INTENT TO FLY; AND SAW THE ACFT START TO VEER R. THE STUDENT APPEARED TO INITIATE THE CORRECT ABORTED TKOF PROC BY RETARDING THE THROTTLES TO IDLE (TO LEARN AFTER ONLY THE L THROTTLE HAD BEEN RETARDED). WHEN I SAW THE ACFT TRACKING CORRECTLY; I MOVED THE R ENG MIXTURE FORWARD. THE R ENG CAUGHT AND ACFT THEN VEERED L AND EXITED THE RWY INTO THE MUDDY GRASS. THE NOSE GEAR COLLAPSED AND THE ACFT SKIDDED TO A STOP. WE SECURED THE COCKPIT AND EGRESSED THROUGH THE MAIN ENTRY DOOR.