SMA ON SKIES GETS BOGGED DOWN ON TAXI AFTER LNDG ON FROZEN LAKE.

Narrative

AFTER LNDG AND WHILE TAXIING TOWARD MY REMOTE PARCEL OF LAND NEAR THE LAKE; THE ACFT BOGGED DOWN BELOW NORMAL TAXIING SPD. FROM THE FEEL AND SOUND I IMMEDIATELY THOUGHT IT WAS 'OVERFLOW.' BASED UPON MY PAST EXPERIENCE WITH 'OVERFLOW' CONDITIONS WHILE OPERATING SKI EQUIPPED ACFT; I DID WHAT IS SOP TO ESCAPE OVERFLOW; I ADDED FULL PWR AND TRIED TO REPOS (I NEVER INTENDED TO TKOF; I WAS WAY TOO SLOW TO EVEN CONSIDER FLYING). I ALSO TURNED ABOUT 90 DEGS TO MY R AND TOWARDS THE MAIN ICE AREA WHICH HAD FRESH WET DRIFTED SNOW ON IT. THE ACFT DID NOT PICK UP ANY TAXI SPD AND AFTER ABOUT 40-60 MORE FT THE ENG AND PROP BEGAN TO SUCK WATER AND ICE AND BOGGED DOWN THE RPMS. (EVENTS NOW ARE MOVING ALONG AT A VERY FAST RATE.) AT THAT POINT I PULLED PWR ALL THE WAY BACK; BUT THE ACFT WAS SLOWLY SINKING AND THEN BROKE THROUGH AND LET DOWN INTO THE LAKE WATER. THE ENG QUIT; WATER RUSHED IN ON THE FLOOR BOARDS AND RAPIDLY BEGAN FILLING THE CABIN. I REMOVED HEADSET; SEAT BELTS; IN A SPLIT SECOND (AND SWITCHED THE MASTER OFF). I CHOSE TO EXIT THE R DOOR; SINCE THE R WINDOW OPENS (WHILE THE L DOES NOT) IN CASE THE DOOR WERE TO JAM ON THE ICE. WHEN I OPENED THE DOOR; ICE AND WATER RUSHED IN. I WAITED (AS I LEARNED FROM SAFETY SEMINARS AND ETC) FOR THE RUSHING WATER TO EQUALIZE AND THEN I LUNGED OUTWARD AND BACK-HANDED THE LEADING EDGE OF THE WING SUCCESSFULLY; KEEPING MY UPPER TORSO OUT OF THE WATER. THEN I GRABBED THE BASE OF AN ANTENNA AND FLIPPED MYSELF UP ON TOP OF THE CABIN. I SPD TOWARDS THE TAIL NOT KNOWING THE PLANE WAS NOT GOING TO CONTINUE TO SINK. I JUMPED FROM NEAR THE VERT STABILIZER OVER THE HORIZ STABILIZER AND PAST BROKEN AND WEAKENED ICE (AN ADDITIONAL 3 FT OR SO). I LANDED ON MY TOES AS LIGHTLY AS POSSIBLE (NOT WANTING TO GO SWIMMING AGAIN) AND WALKED OFF THE LAKE. I WENT TO MY FRIEND'S CABIN ABOUT 300-400 YARDS AWAY AND BUILT A FIRE; AND CHANGED CLOTHES. I HAD PREARRANGED WITH AN AIR TAXI IN SEWARD TO COME PICK ME UP; IF FOR ANY REASON I DID NOT RETURN BY XA30 PM. I DID THAT BECAUSE I WAS WORRIED I MIGHT GET STUCK IN THE NEW SNOW OR NOT BE ABLE TO RESTART MY ENG AND SINCE I WAS ALONE. IN HINDSIGHT THAT WAS A GOOD DECISION SINCE THE WX CLOSED DOWN THE NEXT DAY ALONG THE COAST. I GOT HOME LATE THAT NIGHT AND BEGAN ORGANIZING THE HELI RECOVERY OF THE PLANE THE NEXT DAY.