DHC6 MAKING STEEP APCH TO LAND ON RWY 9 ENCOUNTERS SMA RAPIDLY TAXIING TO EXIT AFTER LNDG OPPOSITE DIRECTION AT UNCTLED ARPT. SMA EXITS THE HARD SURFACE AND COLLAPSES R MAIN LNDG GEAR.

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I WAS CONDUCTING ROUTINE SKYDIVING OPS IN A DHC6 TWIN OTTER. AFTER DROPPING SKYDIVERS; I DSNDED FOR A NORMAL APCH TO LNDG. I HAD BEEN ON WITH APCH AND WAS ALSO MONITORING THE LCL CTAF. I CALLED A 3 MI FINAL AND INQUIRED ABOUT ANY OTHER TFC IN THE PATTERN; BUT HAD NO REPLIES. AT 2 MI (PER MY GPS); I NOTICED WHAT APPEARED TO BE AN EXTREMELY SMALL AIRPLANE OFF THE N SIDE OF RWY 9. IT WAS MOTIONLESS WHEN I OBSERVED IT. IT APPEARED TO BE ABANDONED. I CONTINUED MY APCH AND DETERMINED THAT IT WOULD BE SAFE TO LAND WELL BEYOND IT. I LANDED WITH NO INCIDENT. LATER I WAS TOLD THAT THE PLT OF THE EXPERIMENTAL HAD LOST CTL OF HIS ACFT DURING LNDG. HE WAS STILL SITTING IN THE AIRPLANE AT THE TIME I LANDED. I BELIEVE IT WAS SAFE TO LAND; BUT HAD I KNOWN THE ACFT WAS OCCUPIED; I WOULD HAVE EXECUTED A GAR. THE PLT CLAIMED MY APCH CAUSED HIS INCIDENT. I WAS 2 MI AND 1500 FT AT THE TIME OF HIS INCIDENT. IT WAS LATER DETERMINED THAT HE DID NOT HAVE A RADIO AND HE WAS LNDG DOWNWIND RWY 27 WHILE I WAS LNDG ON RWY 9. SUPPLEMENTAL INFO FROM ACN 637929: I FLEW ACFT #1 IN A REGULAR STANDARD APCH TO A LNDG. ON MY DOWNWIND LEG A DEHAVILLAND TWIN OTTER WAS LOCATED AT 11 O'CLOCK POS ABOUT 1500 FT ABOVE MY 1000 FT PATTERN ALT. AFTER TOUCHING DOWN ON RWY 27 AND MY TAILWHEEL HAVING TOUCHED DOWN TOO; I NOTICED A TWIN ENG AIRPLANE APCHING FROM THE OTHER SIDE. THE ONLY AVAILABLE EXIT FOR ME WAS LOCATED AT THE UPWIND OF RWY 27; SO I CONTINUED TAXIING UP TO IT. THE OTHER AIRPLANE CONTINUED ITS LNDG/APCH; NOW BECOMING DECIDEDLY CLOSER. I SPED UP MY TAXI SPEED; ALSO I DIDN'T CONTINUE MY SLIGHT S-TURNS ANY MORE TO BETTER BE ABLE TO SEE THE RWY. WHEN THE TWIN STILL CONTINUED ITS APCH; NOW DANGEROUSLY CLOSE; I TRIED TO TAXI EVEN FASTER. WHEN TURNING OFF TO THE TXWY; I TURNED A LITTLE TOO EARLY; CATCHING WITH MY R MAIN GEAR ON THE SIDE OF THE TXWY; SHEARING IT OFF IN THE PROCESS. MY AIRPLANE CAME TO REST WITH A SHATTERED PROP; 25 FT ON THE TXWY. THE TWIN OTTER PASSED OVERHEAD WHEN MY AIRPLANE WAS JUST STOPPED AND IT TOUCHED DOWN BEHIND ME ON RWY 9.