PA34 STUDENT PLT RETRACTED LNDG GEAR WHILE ACFT WAS DOING A TOUCH AND GO. STUDENT MEANT TO RETRACT FLAPS INSTEAD.

Narrative

MY STUDENT AND I WERE CONDUCTING TOUCH AND GOES TOWARD THE END OF A FLT LESSON. ON OUR THIRD TOUCH AND GO THE STUDENT QUICKLY GRABBED THE GEAR HANDLE INSTEAD OF THE FLAP HANDLE AND RAISED IT TO THE UP POS. I YELLED 'NO' AS SOON AS HE GRABBED IT AND STARTED REACHING TO BRING IT BACK DOWN. I BROUGHT IT DOWN IMMEDIATELY; BUT THE HYD PRESSURE IN THE NOSE GEAR RELEASED AND THE FRONT NOSE GEAR COLLAPSED. THE NOSE SLID ON THE PAVEMENT FOR A FEW HUNDRED FEET BEFORE WE CAME TO A STOP. THE PROPS STRUCK THE GND AND Q-TIPPED THE PROPS. THERE WAS NO STRUCTURAL DAMAGE TO THE ACFT. I BELIEVE THAT THE STUDENT'S UNFAMILIARITY OF THE PIPER SENECA'S GEAR AND FLAP SETUP AND HAVING A MAJORITY OF HIS TIME IN CESNNA'S WITH THE ELECTRIC FLAP HANDLE CONTRIBUTED ALONG WITH MY NOT HAVING THE STUDENT TOUCH THE HANDLE AND SAY 'CONFIRM FLAP HANDLE' BEFORE MOVING IT WAS THE CAUSE. I BELIEVE TO PREVENT THIS FROM HAPPENING A STUDENT SHOULD BECOME PROFICIENT AND CONDUCT ONLY STOP AND GOES OR STOP-TAXI BACK BEFORE TEACHING THEM TOUCH AND GO PROCS. THE STUDENT WAS AN ASEL COMMERCIAL WORKING ON HIS AMEL COMMERCIAL ADDITION. HE HAD ABOUT 4.5 HRS IN A MULTI-ENG AT THE TIME THIS OCCURRED.