Narrative:

I was giving instruction in a single engine seaplane to a commercial/instrument pilot. I was preparing the pilot for his seaplane chkride. After several water lndgs, I suggested that the pilot practice some 'land' lndgs, since the attitude of water lndgs and 'land' lndgs differ. We proceeded to an uncontrolled airport, where the pilot performed 'land' lndgs. During the circuit immediately prior to the incident, I was making notes regarding the pilot's performance. During this time, my attention was, inadvertently, not focused on the landing checklist and I do not recall whether on that circuit the pilot confirmed that the landing gear was lowered for landing. When the plane contacted the ground, I heard an unusual noise and I immediately secured the aircraft and ordered the pilot to evacuate/evacuation. I then realized that the landing gear was still retracted. There were no injuries. Following the incident, I contacted a mechanic. We elevated the plane and lowered the landing gear. I inspected the plane and determined that there was no substantial damage, however, the FAA had already been notified by local auths. The plane was flown back to sarasota after I determined that the plane was safe for flight. A few days later, the plane was flown to another airport for repairs. In an abundance of caution, I obtained a flight permit for the flight to the repair facility.

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Original NASA ASRS Text

Title: INSTRUCTOR WITH STUDENT PREPARING FOR COMMERCIAL INST CHK RIDE MAKES GEAR UP LNDG IN AN AMPHIB ACFT.

Narrative: I WAS GIVING INSTRUCTION IN A SINGLE ENG SEAPLANE TO A COMMERCIAL/INST PLT. I WAS PREPARING THE PLT FOR HIS SEAPLANE CHKRIDE. AFTER SEVERAL WATER LNDGS, I SUGGESTED THAT THE PLT PRACTICE SOME 'LAND' LNDGS, SINCE THE ATTITUDE OF WATER LNDGS AND 'LAND' LNDGS DIFFER. WE PROCEEDED TO AN UNCTLED ARPT, WHERE THE PLT PERFORMED 'LAND' LNDGS. DURING THE CIRCUIT IMMEDIATELY PRIOR TO THE INCIDENT, I WAS MAKING NOTES REGARDING THE PLT'S PERFORMANCE. DURING THIS TIME, MY ATTN WAS, INADVERTENTLY, NOT FOCUSED ON THE LNDG CHKLIST AND I DO NOT RECALL WHETHER ON THAT CIRCUIT THE PLT CONFIRMED THAT THE LNDG GEAR WAS LOWERED FOR LNDG. WHEN THE PLANE CONTACTED THE GND, I HEARD AN UNUSUAL NOISE AND I IMMEDIATELY SECURED THE ACFT AND ORDERED THE PLT TO EVAC. I THEN REALIZED THAT THE LNDG GEAR WAS STILL RETRACTED. THERE WERE NO INJURIES. FOLLOWING THE INCIDENT, I CONTACTED A MECH. WE ELEVATED THE PLANE AND LOWERED THE LNDG GEAR. I INSPECTED THE PLANE AND DETERMINED THAT THERE WAS NO SUBSTANTIAL DAMAGE, HOWEVER, THE FAA HAD ALREADY BEEN NOTIFIED BY LCL AUTHS. THE PLANE WAS FLOWN BACK TO SARASOTA AFTER I DETERMINED THAT THE PLANE WAS SAFE FOR FLT. A FEW DAYS LATER, THE PLANE WAS FLOWN TO ANOTHER ARPT FOR REPAIRS. IN AN ABUNDANCE OF CAUTION, I OBTAINED A FLT PERMIT FOR THE FLT TO THE REPAIR FACILITY.

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.