C172RG STUDENT INADVERTENTLY RETRACTED GEAR ON GND AFTER SUCCESSFUL LNDG ACCOMPLISHED.

Narrative

MY STUDENT AND I WERE FLYING OUR SECOND TRAINING FLT IN A C172RG TO START ON HIS COMPLEX ENDORSEMENT. THE FIRST FLT WAS ABOUT A WK BEFORE IN WHICH HE HAD DONE 5 TOUCH AND GOES. WE MADE 3 NORMAL LNDGS; BUT ON THE 4TH; AFTER SLOWING; HE PULLED THE GEAR LEVER UP. THE NOSE GEAR CAME UP AND WE SLID TO A STOP. I DID SEE HIS HAND THERE AND SAID 'NO' AND REACHED OUT; BUT WAS TOO LATE. I THINK HE IS A VERY QUICK TO ACT PERSON AND IF HE HAD TAKEN HIS TIME; THIS WOULD NOT HAVE HAPPENED. I DO ALWAYS STRESS TAKING TIME ON TOUCH AND GOES AND NOT RUSHING; MAKING SURE ALL IS RIGHT IN THE PLANE. I WISH I WOULD HAVE SAID EVERY TIME -- SLOW DOWN; MAKE SURE WHAT YOU'RE DOING. I WISH THERE WERE SOME BOX OR SOMETHING OVER THE GEAR KNOB; MAKING IT HARDER TO JUST REACH OUT AND PULL. ALSO; THE SQUAT SWITCH ON THE CESSNA RG IS ON THE NOSEWHEEL; SO IF YOU KEEP THE PRESSURE OFF THE NOSEWHEEL LIKE YOU SHOULD; THERE IS NOT MUCH OR NO WT ON THE WHEEL IN A CASE LIKE THIS. IN THE FUTURE; I WILL RELATE THIS INCIDENT TO STUDENTS ON COMPLEX TRAINING. WE ARE ALSO GOING TO DO STOP AND GOES RATHER THAN TOUCH AND GOES; TELLING STUDENTS TO TOUCH NOTHING UNTIL STOPPED AND VERIFIED. I DO THINK THIS COULD HELP; BUT DO NOT FEEL IT WILL ELIMINATE THE PROB. SUPPLEMENTAL INFO FROM ACN 684796: THE ONLY HUMAN CONTRIBUTING FACTORS I CAN THINK OF IS THE FACT I WAS TALKING TO THE CFI QUITE A BIT DURING OUR TRAINING; NOT AT THE EXACT TIME OF THE INCIDENT THOUGH; BUT CONCENTRATING ON THE TASKS AT HAND MAY HAVE HELPED IN PAYING BETTER ATTN TO WHAT I WAS DOING. I KEEP THE COCKPIT QUIET FLYING THE PATTERN WITH PAX WHEN I AM THE PIC BUT DID NOT DURING THE TRAINING. I SHOULD HAVE KEPT THE TALK LIMITED TO RELEVANT IMMEDIATE NEEDS ONLY AND STOPPED TO TALK IN ANY GREATER DETAIL ABOUT THE TRAINING PROGRESS.