Narrative:

I was flying with a student (multi engine). Towards the end of the lesson, we entered the olv traffic pattern to practice lndgs. I instructed my student to land on the 1000 ft markers and prepare for a touch-and-go. After the landing, my student retracted the flaps, added full power and began to rotate. Just after liftoff, my student reached to the gear handle and began to cycle the landing gear. I yelled 'no' and moved for his hand. As soon as I yelled, he let go of the controls and the landing gear handle. As the plane sunk to the ground, the right main gear began to retract. I added back pressure and attempted to keep the plane airborne. I was unsuccessful. The right propeller struck the ground as we slid down the runway. We slid to the right after 100 ft or so because the left main gear and nose gear remained extended and locked in place. We slid on the propeller and flap hinges into the grass where we hit a runway light that dented the leading edge and belly of the right wing. We came to a complete stop and I shut everything down in accordance with the emergency checklist. Even though I saw my student pull the gear handle, I did not prevent the situation. I should have maintained a continuous vocal checklist with my student (making him call out the action before he performed the action). Also, I should have maintained a proper out for the situation. I will now make all students of a complex aircraft make full stop lndgs.

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Original NASA ASRS Text

Title: INSTRUCTOR PLT UNABLE TO RECOVER DURING TOUCH-AND-GO WHEN STUDENT QUITS FLYING AFTER MAKING AN ERROR IN A COMPLEX ACFT.

Narrative: I WAS FLYING WITH A STUDENT (MULTI ENG). TOWARDS THE END OF THE LESSON, WE ENTERED THE OLV TFC PATTERN TO PRACTICE LNDGS. I INSTRUCTED MY STUDENT TO LAND ON THE 1000 FT MARKERS AND PREPARE FOR A TOUCH-AND-GO. AFTER THE LNDG, MY STUDENT RETRACTED THE FLAPS, ADDED FULL PWR AND BEGAN TO ROTATE. JUST AFTER LIFTOFF, MY STUDENT REACHED TO THE GEAR HANDLE AND BEGAN TO CYCLE THE LNDG GEAR. I YELLED 'NO' AND MOVED FOR HIS HAND. AS SOON AS I YELLED, HE LET GO OF THE CTLS AND THE LNDG GEAR HANDLE. AS THE PLANE SUNK TO THE GND, THE R MAIN GEAR BEGAN TO RETRACT. I ADDED BACK PRESSURE AND ATTEMPTED TO KEEP THE PLANE AIRBORNE. I WAS UNSUCCESSFUL. THE R PROP STRUCK THE GND AS WE SLID DOWN THE RWY. WE SLID TO THE R AFTER 100 FT OR SO BECAUSE THE L MAIN GEAR AND NOSE GEAR REMAINED EXTENDED AND LOCKED IN PLACE. WE SLID ON THE PROP AND FLAP HINGES INTO THE GRASS WHERE WE HIT A RWY LIGHT THAT DENTED THE LEADING EDGE AND BELLY OF THE R WING. WE CAME TO A COMPLETE STOP AND I SHUT EVERYTHING DOWN IN ACCORDANCE WITH THE EMER CHKLIST. EVEN THOUGH I SAW MY STUDENT PULL THE GEAR HANDLE, I DID NOT PREVENT THE SIT. I SHOULD HAVE MAINTAINED A CONTINUOUS VOCAL CHKLIST WITH MY STUDENT (MAKING HIM CALL OUT THE ACTION BEFORE HE PERFORMED THE ACTION). ALSO, I SHOULD HAVE MAINTAINED A PROPER OUT FOR THE SIT. I WILL NOW MAKE ALL STUDENTS OF A COMPLEX ACFT MAKE FULL STOP LNDGS.

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.