Narrative:

After practicing uneventful takeoffs and lndgs at ottawa airport, my pre-solo student and I departed for our home field at johnson county executive for a full stop landing. We were instructed by ATC to enter a right downwind for runway 18. After noticing that we were slightly high on base, I called for a power reduction and lowering of the nose. Our descent angle was slightly steep and we were gaining some airspeed. After flaring on the centerline of the runway, we floated unusually long and eventually touched down. As the student applied brakes the tires started to skid. It was then that I realized that the throttle was not all the way back to idle and we were attempting to stop with power on. I suggested a go around, however, the student remained on the brakes with the tires skidding. At this moment, I took the controls. Due to insufficient runway remaining, I reassessed the situation and with the throttle fully out to idle, I attempted a turn onto the taxiway at the end of the runway. Our momentum was too fast to stop, resulting in a blown tire and the aircraft skidding onto the grass. No additional damage occurred. The proper corrective action could have been to initiate a go around after missing the first 1/3 of the runway.

Google
 

Original NASA ASRS Text

Title: A C172 CFI WITH A STUDENT LAND LONG AND FAST WITH PWR STILL ON RESULTING IN THE ACFT SLIDING OFF THE END OF THE RWY AND A BLOWN TIRE.

Narrative: AFTER PRACTICING UNEVENTFUL TKOFS AND LNDGS AT OTTAWA ARPT, MY PRE-SOLO STUDENT AND I DEPARTED FOR OUR HOME FIELD AT JOHNSON COUNTY EXECUTIVE FOR A FULL STOP LNDG. WE WERE INSTRUCTED BY ATC TO ENTER A R DOWNWIND FOR RWY 18. AFTER NOTICING THAT WE WERE SLIGHTLY HIGH ON BASE, I CALLED FOR A PWR REDUCTION AND LOWERING OF THE NOSE. OUR DSCNT ANGLE WAS SLIGHTLY STEEP AND WE WERE GAINING SOME AIRSPD. AFTER FLARING ON THE CTRLINE OF THE RWY, WE FLOATED UNUSUALLY LONG AND EVENTUALLY TOUCHED DOWN. AS THE STUDENT APPLIED BRAKES THE TIRES STARTED TO SKID. IT WAS THEN THAT I REALIZED THAT THE THROTTLE WAS NOT ALL THE WAY BACK TO IDLE AND WE WERE ATTEMPTING TO STOP WITH PWR ON. I SUGGESTED A GAR, HOWEVER, THE STUDENT REMAINED ON THE BRAKES WITH THE TIRES SKIDDING. AT THIS MOMENT, I TOOK THE CTLS. DUE TO INSUFFICIENT RWY REMAINING, I REASSESSED THE SIT AND WITH THE THROTTLE FULLY OUT TO IDLE, I ATTEMPTED A TURN ONTO THE TXWY AT THE END OF THE RWY. OUR MOMENTUM WAS TOO FAST TO STOP, RESULTING IN A BLOWN TIRE AND THE ACFT SKIDDING ONTO THE GRASS. NO ADDITIONAL DAMAGE OCCURRED. THE PROPER CORRECTIVE ACTION COULD HAVE BEEN TO INITIATE A GAR AFTER MISSING THE FIRST 1/3 OF THE RWY.

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.