PLT OF A PIPER CHEYENNE; PA31; TOOK OFF AT AN UNCTLED ARPT WHEN ANOTHER ACFT WAS ON SHORT FINAL RESULTING IN THE OTHER ACFT ALMOST LNDG ON TOP OF THE RPTR.

Narrative

I WAS REPOSITIONING THE CHEYENNE FROM CLEARWATER ARPT BACK TO OUR TAMPA BASE. AS I BEGAN TAXI; I ANNOUNCED INTENTIONS OVER CTAF. WHEN I REACHED THE END OF RWY 34; I WAS #2 BEHIND A SINGLE-ENG CESSNA. AS HE TAXIED ONTO THE RWY AND BEGAN HIS TKOF ROLL; I HEARD ANOTHER ACFT CALL DOWNWIND. THAT WAS THE ONLY OTHER CALL I HEARD. AS THE CESSNA WAS ROLLING FOR TKOF; I WAITED; FACING OPPOSITE THE RWY HEADING SO AS TO WATCH TFC. WHILE WAITING; I PROGRAMMED ATIS AT TAMPA INTO COM #1 STANDBY (I HAD CTAF IN ACTIVE ON COM #1). AFTER A SHORT WAIT; I TAXIED INTO POS; ANNOUNCING MY DEP. JUST BEFORE TURNING ONTO THE RWY; I NOTED THAT THE DOWNWIND TFC HAD TURNED A WIDE BASE (THE RWY HAD R TFC; SO I WAS LOOKING R AT HIM). I ALSO NOTED THAT I HAD NOT ALLOWED ENOUGH TIME; AS THE CESSNA SINGLE WAS STILL OVER THE RWY. I WAS AWARE OF THE ACFT BEHIND ME LNDG; SO BEGAN MY TKOF ROLL AS SOON AS THE CESSNA CLRED THE END OF THE RWY. TKOF WAS WITHOUT INCIDENT; AND I MANEUVERED AROUND THE CESSNA AFTER THE DEP WITHOUT ANY PROB. LATER THAT AFTERNOON; I RETURNED TO THE ARPT TO TALK WITH THE FBO MGR. HE MENTIONED THAT THE LNDG TFC HAD 'ALMOST LANDED ON TOP OF YOU.' APPARENTLY; I HAD WAITED TOO LONG TO BEGIN MY TKOF ROLL; ALSO WAS UNAWARE OF HOW CLOSE WE HAD COME TO A COLLISION ON THE RWY. AS I CLBED OUT OF CLW; I BEGAN TO HEAR TAMPA ATIS ON MY HEADSET. WHEN I ENTERED THE ATIS FREQ; I HAD APPARENTLY PRESSED THE XFER BUTTON TWICE; PROBABLY FORCE OF HABIT; SO I MISSED EVERYTHING ON CTAF AFTER I BEGAN TAXIING INTO POS ON THE RWY. ALSO MY DEP ANNOUNCEMENT WENT OUT ON THE ATIS FREQ; NOT CTAF. I DO NOT SPEND MUCH TIME AT UNCTLED ARPTS WITH SLOWER TFC. I WILL READJUST MY PERCEPTIONS TO ACCOMMODATE THE DEP AND APCH SPDS OF LIGHT ACFT; AND AM TRYING TO TRACK DOWN THE LNDG PLT TO APOLOGIZE AND DISCUSS THE PROB WITH HIM (HER).