PIPER AZTEC PLT HAS GEAR UP LNDG AT PDK.

Narrative

MY INTENTIONS WERE TO TAKE A VFR FLT FROM LAWRENCEVILLE; GA TO PEACHTREE DEKALB; GRAB DINNER AND FLY HOME. AT ABOUT XA30Z; I CHKED THE WX; WHICH WAS VFR AT BOTH LZU AND PDK. THE WX WAS ALSO FORECASTED TO REMAIN VFR THROUGHOUT THE EVENING. I PROCEEDED TO THE ACFT WITH PAX AND HIS DAUGHTER. I DID A THOROUGH PREFLT OF THE ACFT AND FOUND IT TO BE IN AIRWORTHY CONDITIONS. DURING THE PREFLT; I ALSO CHKED THE ACFT DOCUMENTS AND FOUND THAT ARROW WAS IN THE AIRPLANE. AFTER GETTING THE ATIS AT GWINNETT; I DECIDED TO TAKE OF USING RWY 7; DEPARTING TO THE E; SINCE I WAS AWARE THAT THERE WAS AN ISOLATED TSTM CELL SW OF THE ARPT ACCORDING TO THE WX RADAR. I TOOK OFF FROM RWY 7 AT GWINNETT AND CLBED TO 3700 FT AND STARTED MY WBOUND TURN TOWARDS PEACHTREE DEKALB. I PROCEEDED TO GET ATIS AT PEACHTREE AND WAS TOLD TO EXPECT RWY 20L. THERE WAS QUITE A BIT OF TFC AT THE TIME OF MY ARR INTO CLASS D AIRSPACE AND DUE TO THE SUN; IT WAS HARD TO SPOT MY TFC TO FOLLOW. AT ONE POINT; THE CTLR INSTRUCTED ME TO FLY NBOUND TO REJOIN A 4 MI FINAL FOR RWY 20L; WHICH I DID. AT THAT POINT; I HAD STARTED MY DSCNT AND USING THE CHKLIST HAD STARTED MY PRE-LNDG CHKS. ON ABOUT A 2 MI FINAL; I PUT MY GEAR DOWN; FLAPS DOWN AND FINISHED MY CHKLIST. ON ABOUT 1 1/2 MI FINAL; I CHKED FOR '3 GREENS; HANDLE NEUTRAL; WX RADAR OFF; FUEL PUMPS; PROPS FORWARDS; FUEL TANKS AND AUTOPLT OFF;' WHICH IS A FINAL CHK THAT I HAD COMMITTED TO MEMORY. APPROX ON A 1 MI FINAL; THE CTLR CHANGED MY ASSIGNED RWY TO RWY 20R AS I JUST SPOTTED THE TFC IN FRONT OF ME. THE LAST 600 FT OF RWY 20R WAS UNAVAILABLE AND I THOUGHT THAT I WOULD BE SAFER TO LAND ON RWY 20L; SO I REQUESTED RWY 20L FROM THE CTLR WHO ASSIGNED ME TO EXECUTE A R 360 DEGS AT THIS TIME. I PROCEEDED TO FLY A R 360 DEGS AND REMEMBER BRINGING MY FLAPS UP TO MINIMIZE DRAG. AS I AM FLYING MY 360 DEGS; THE CTLR CLRS ME TO LAND RWY 20L AND THEN PROCEEDS TO CLR ANOTHER AIRPLANE TO LAND ON RWY 20L. I TRIED TO KEEP MY 360 DEGS FAIRLY TIGHT; REALIGNED FOR FINAL AND WHILE ATTEMPTING TO LAND ON RWY 20L; FELT THE AIRPLANE LAND ON ITS BELLY AND THE PROP HIT THE GND. I STEERED THE AIRPLANE USING RUDDERS AS IT STOPPED DOWN THE RWY. I ADVISED MY PAX TO EVACUATE THE ACFT; WHILE SHUTTING OFF THE ELECTRICAL SYS AND PULLING THE MIXTURE TO IDLE. I BELIEVE THAT WHEN THE CTLR ASSIGNED ME TO FLY A R 360 DEGS WHILE I WAS ON SHORT FINAL; I STARTED A GAR PROC AND BROUGHT MY GEAR UP AND FLAPS UP. THIS WAS A PROC MISTAKE ON MY PART SINCE; THE CTLR'S REQUEST WAS JUST FOR A R 360 DEGS; NOT A GAR WHICH IS WHAT KEPT ME FROM CHKING THE 3 GREEN LIGHTS. I THINK THAT ATC SHOULD TRY TO AVOID AT ALL COST TO ASSIGN A 360 DEGS TO AN ACFT THAT IS SO CLOSE TO THE GND ON SHORT FINAL BECAUSE IT COULD POTENTIALLY BECOME A HUGE DISTR TO THE PLT. SUCH A MANEUVER IS NOT QUITE A LNDG NOR IS IT QUITE A GAR; IT IS CONDUCTIVE TO ERROR MAKING WHILE FLYING IN BUSY AIRSPACE. THE ACFT DID NOT SUSTAIN SUBSTANTIAL DAMAGE NOR WAS ANYBODY INJURED.