LJ35 RECEIVED TCAS ALERT FOR TFC ON SHORT VFR FINAL APCH. OPPOSITE DIRECTION DEPARTING TFC WAS OBSERVED; AND BOTH ACFT PERFORMED EVASIVE RIGHT TURNS TO AVOID COLLISION.

Narrative

WE RECEIVED A VISUAL APCH TO THE ARPT ABOUT 20 NM OUT. SHORTLY THEREAFTER; WE CANCELED IFR AND CONTINUED TO THE ARPT VFR AS WE HAD IT IN SIGHT. WE MADE OUR INITIAL CALL ABOUT 10 MI OUT AND INDICATED OUR INTENTION OF USING RWY 12. THERE WAS AN ACFT THAT MADE A CALL FOR DEP OFF OF RWY 12; SO WE CONTINUED FOR THAT RWY. AS WE CONTINUED FOR THE ARPT; WE CALLED OUT A 5 MI FINAL; AND NO OTHER TFC HAD BEEN HEARD OR OBSERVED IN THE AREA OR ON TCAS. WE CALLED A 3 MI FINAL FOR RWY 12 AND STILL NO TFC HEARD OR OBSERVED. AROUND THE 500 FT CALL; WE GOT A TCAS ALERT FOR AN ACFT 12 O'CLOCK POS. WE THEN OBSERVED A SINGLE ENG CESSNA INITIATING A HARD TURN TO HIS R. I MADE A TURN TO OUR R TIL CLR OF THE TFC THEN CONTINUED FOR LNDG. THIS ACFT HAD APPARENTLY DEPARTED ON THE OPPOSITE RWY (RWY 30) WITHOUT MAKING ANY RADIO CALLS OR HAVING ANY LIGHTS ON WHICH RESULTED IN THIS SITUATION. BESIDES MONITORING THE RADIO; IT IS IMPERATIVE THAT ACFT USE THEIR LIGHTS WHENEVER OPERATING IN THE VICINITY OF AN ARPT. IT WAS A HAZY DAY WHICH MADE SEEING ACFT THAT MUCH HARDER.