Narrative:

While volunteer flight instructing during an FAA 'wings weekend' in lou, I was assigned a private pilot, instrument and multi-engine rated pilot. Pilot had a PA34. We had a preflight talk of approximately 1 hour. We got in the airplane and taxied out for takeoff. On the takeoff roll, I retarded the right engine mixture at about 10 KTS, simulating right engine failure. The PIC failing to recognize the simulated failure, I pulled both throttles to idle, pushed the right mixture full rich, and put as much left rudder as possible. I had no brake pedals on the right side. The aircraft went off the right side of runway 6, striking the runway sign and knocking it over. We let the tower know we were aborting the takeoff and need authority/authorized to taxi back to the ramp. The tower said they noticed fuel leaking out of the right wing. Once we shut down and got out, we noticed a slice under the right wing (coming from the aircraft hitting the runway sign) with fuel leaking out. I asked the ramp person to put a bucket under the wing to collect the fuel, and we drained the rest of the fuel out. I called the tower on my cell phone and gave them some information. About 1 hour later, the NTSB called to ask some questions. There were no injuries. The contributing factors were the PIC failing to recognize the simulated engine failure and myself not retarding the throttles fast enough to maintain directional control, especially with no brake pedals on the right side. As far as corrective actions in the future, maybe no engine failure simulation on the ground with no brakes on the right side.

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Original NASA ASRS Text

Title: FLT INSTRUCTOR AND STUDENT DEPART RWY WHEN SIMULATED ENG FAILURE IS NOT RECOGNIZED IN TIME BY STUDENT NOR PROPERLY SALVAGED BY INSTRUCTOR.

Narrative: WHILE VOLUNTEER FLT INSTRUCTING DURING AN FAA 'WINGS WEEKEND' IN LOU, I WAS ASSIGNED A PVT PLT, INST AND MULTI-ENG RATED PLT. PLT HAD A PA34. WE HAD A PREFLT TALK OF APPROX 1 HR. WE GOT IN THE AIRPLANE AND TAXIED OUT FOR TKOF. ON THE TKOF ROLL, I RETARDED THE R ENG MIXTURE AT ABOUT 10 KTS, SIMULATING R ENG FAILURE. THE PIC FAILING TO RECOGNIZE THE SIMULATED FAILURE, I PULLED BOTH THROTTLES TO IDLE, PUSHED THE R MIXTURE FULL RICH, AND PUT AS MUCH L RUDDER AS POSSIBLE. I HAD NO BRAKE PEDALS ON THE R SIDE. THE ACFT WENT OFF THE R SIDE OF RWY 6, STRIKING THE RWY SIGN AND KNOCKING IT OVER. WE LET THE TWR KNOW WE WERE ABORTING THE TKOF AND NEED AUTH TO TAXI BACK TO THE RAMP. THE TWR SAID THEY NOTICED FUEL LEAKING OUT OF THE R WING. ONCE WE SHUT DOWN AND GOT OUT, WE NOTICED A SLICE UNDER THE R WING (COMING FROM THE ACFT HITTING THE RWY SIGN) WITH FUEL LEAKING OUT. I ASKED THE RAMP PERSON TO PUT A BUCKET UNDER THE WING TO COLLECT THE FUEL, AND WE DRAINED THE REST OF THE FUEL OUT. I CALLED THE TWR ON MY CELL PHONE AND GAVE THEM SOME INFO. ABOUT 1 HR LATER, THE NTSB CALLED TO ASK SOME QUESTIONS. THERE WERE NO INJURIES. THE CONTRIBUTING FACTORS WERE THE PIC FAILING TO RECOGNIZE THE SIMULATED ENG FAILURE AND MYSELF NOT RETARDING THE THROTTLES FAST ENOUGH TO MAINTAIN DIRECTIONAL CTL, ESPECIALLY WITH NO BRAKE PEDALS ON THE R SIDE. AS FAR AS CORRECTIVE ACTIONS IN THE FUTURE, MAYBE NO ENG FAILURE SIMULATION ON THE GND WITH NO BRAKES ON THE R SIDE.

Data retrieved from NASA's ASRS site as of July 2007 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.