A PA28-201 CFI AND PLT OWNER LAND THE ACFT GEAR UP AT ZZV; OH.

Narrative

WHILE CONDUCTING A FLT REVIEW FOR A PVT PLT IN HIS PA28R-201 ARROW IV; THE LAST LNDG RESULTED IN A GEAR-UP APCH AND LNDG. THERE WAS NO WARNING THAT THE GEAR WAS NOT EXTENDED. NO WARNING HORN; LIGHT. THE SAFETY EXTENSION SYS DID NOT ACTIVATE. THE FLT DEPARTED ZZV AT XA15 LCL TIME. WE PROCEEDED TO DO AIR WORK; DIVERTED TO I71 FOR A LNDG AND TKOF. WE RETURNED TO ZZV. AFTER DOING A TOUCH-AND-GO; THE PLT DECIDED TO DO 1 MORE LNDG. WE SWITCHED TO RWY 34 TO REDUCE THE AMOUNT OF SUN IN OUR EYES SINCE IT WAS RIGHT AT SUNSET. THE ONE AREA THE PLT MENTIONED HE WAS HAVING TROUBLE WITH; WAS COMING IN TOO HIGH AND FAST. THE FINAL LNDG APCH FOCUSED ON PROPER AIRSPD; PWR; DSCNT RATE (IE; A STABILIZED APCH). THE APCH WAS NEAR PREFECT IN THIS RESPECT; BUT RESULTED IN MY NOT NOTICING THE PLT HAD NOT LOWERED THE GEAR. MY ATTN WAS FOCUSED ON THE APCH. THERE WERE NO INJURIES; AND THE PLANE ONLY SUSTAINED MINOR BELLY AND PROP DAMAGE. THE PLANE CAME TO REST ON THE RWY EDGE. I BELIEVE THAT MY FOCUS ON STABILIZED APCH PARAMETERS AND CONTINUAL VERBAL FEEDBACK TO THE PLT DIVERTED MY ATTN LONG ENOUGH TO NOT DETECT THE GEAR-UP CONDITION. THIS WAS MY FIRST FLT IN THIS ACFT; WITH THIS PLT; AND THUS WAS NOT FAMILIAR WITH THE ACFT'S FEEL WHEN THE GEAR WAS NOT DEPLOYED. THE LOW SUN MADE SEEING IN THE CABIN DIFFICULT AS WELL.