Narrative:

Upon approach and landing at mccarran international on runway 19R, we lost directional control on rollout and went off the runway into a gravel dirt area between the taxiway and 19R. Damage to the airplane was a bent strut on the right main gear and broken scissors arm. I was acting as an instructor being recently checked out after ground school and flight training to manufacturer's syllabus. The PF went to the same ground school, is also an ATP with MEL, current IFR. We had done a previous flight including airwork and a landing. I was acting as PNF as well as an instructor. Crossed the threshold at between 25 ft and 50 ft, 105 KIAS, and the PF took hand off the power lever and put it on the yoke and asked me to do the power. I did not expect this, but put hands on the power levers and continued to reduce power until touchdown. At touchdown we were long on the 5001 ft by 75 ft runway because of extended flare and slight tailwind. The airplane yawed and I tried to adjust our idle to prevent the yaw. The PF lost steering control. The airplane went right, then left. The PF went hard on brakes. I assisted in holding the rudders stable and told the PF to hold straight as we were going off the runway to the right. I did have some effect with the power levers. The PF said 'let's go around.' I said 'no, we will hold straight.' we went off the runway and the right gear caught a drainage ditch and broke the scissors. I should have had more aggressive attention to potential problems. I did not expect his actions to leave the power levers at this point without a previous briefing. I should have ordered a go around or taken the airplane myself.

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Original NASA ASRS Text

Title: AN INSTRUCTOR PLT LET HIS STUDENT LOSE CTL AND RUN OFF OF THE RWY ON LNDG.

Narrative: UPON APCH AND LNDG AT MCCARRAN INTL ON RWY 19R, WE LOST DIRECTIONAL CTL ON ROLLOUT AND WENT OFF THE RWY INTO A GRAVEL DIRT AREA BTWN THE TXWY AND 19R. DAMAGE TO THE AIRPLANE WAS A BENT STRUT ON THE R MAIN GEAR AND BROKEN SCISSORS ARM. I WAS ACTING AS AN INSTRUCTOR BEING RECENTLY CHKED OUT AFTER GND SCHOOL AND FLT TRAINING TO MANUFACTURER'S SYLLABUS. THE PF WENT TO THE SAME GND SCHOOL, IS ALSO AN ATP WITH MEL, CURRENT IFR. WE HAD DONE A PREVIOUS FLT INCLUDING AIRWORK AND A LNDG. I WAS ACTING AS PNF AS WELL AS AN INSTRUCTOR. CROSSED THE THRESHOLD AT BTWN 25 FT AND 50 FT, 105 KIAS, AND THE PF TOOK HAND OFF THE PWR LEVER AND PUT IT ON THE YOKE AND ASKED ME TO DO THE PWR. I DID NOT EXPECT THIS, BUT PUT HANDS ON THE PWR LEVERS AND CONTINUED TO REDUCE PWR UNTIL TOUCHDOWN. AT TOUCHDOWN WE WERE LONG ON THE 5001 FT BY 75 FT RWY BECAUSE OF EXTENDED FLARE AND SLIGHT TAILWIND. THE AIRPLANE YAWED AND I TRIED TO ADJUST OUR IDLE TO PREVENT THE YAW. THE PF LOST STEERING CTL. THE AIRPLANE WENT R, THEN L. THE PF WENT HARD ON BRAKES. I ASSISTED IN HOLDING THE RUDDERS STABLE AND TOLD THE PF TO HOLD STRAIGHT AS WE WERE GOING OFF THE RWY TO THE R. I DID HAVE SOME EFFECT WITH THE PWR LEVERS. THE PF SAID 'LET'S GAR.' I SAID 'NO, WE WILL HOLD STRAIGHT.' WE WENT OFF THE RWY AND THE R GEAR CAUGHT A DRAINAGE DITCH AND BROKE THE SCISSORS. I SHOULD HAVE HAD MORE AGGRESSIVE ATTN TO POTENTIAL PROBS. I DID NOT EXPECT HIS ACTIONS TO LEAVE THE PWR LEVERS AT THIS POINT WITHOUT A PREVIOUS BRIEFING. I SHOULD HAVE ORDERED A GAR OR TAKEN THE AIRPLANE MYSELF.

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.