RPTR'S BE35 HAS CRITICAL ENCOUNTER WITH C172 AT AAO.

Narrative

THE CESSNA WAS MAKING A PRACTICE ILS APCH AND HAD ANNOUNCED SHE WOULD TERMINATE THE APCH WITH THE PUBLISHED PROC. I WAS MAKING AN APCH TO THE ARPT FROM THE E AND HAD ANNOUNCED MY INTENTION TO CROSS MIDFIELD AND ENTER A DOWNWIND TO THE SAME RWY. MY PAX AND I BOTH LOOKED FOR THE ACFT ON THE ILS BUT COULD NOT LOCATE IT. APPARENTLY IT WAS BELOW OUR R WING FOR MOST OF THE TIME. AS WE APCHED MIDFIELD; WE SPOTTED THE CESSNA CLBING TOWARD US. WE PULLED UP AND TURNED L; THE CESSNA ALSO TURNED L. IT IS POSSIBLE THAT NEITHER THE PLT OF THE CESSNA NOR THE SAFETY PLT SAW US; AS THEY WERE LOWER AND HAD THE HIGH WING SHIELDING THEM FROM SEEING US. WHEN MAKING A PRACTICE APCH; IF THERE IS CONFLICTING VFR TFC; I MAKE IT A POINT TO BREAK OFF THE APCH BEFORE ARRIVING AT THE ARPT THRESHOLD UNLESS I HAVE ESTABLISHED VISUAL CONTACT AND AM ASSURED OF SEPARATION. OBVIOUSLY; THE CESSNA DID NOT DO THAT AND WAS INTENT ON FLYING THE PUBLISHED MISSED APCH; EVEN THOUGH THERE WAS ANNOUNCED TFC IN THE VICINITY OF THAT PROC. FOLLOWING THE EVASIVE MANEUVERING; THE CESSNA ANNOUNCED AGAIN THAT SHE WAS FLYING THE PUBLISHED MISSED APCH (THIS IS OF NO VALUE TO MOST PLTS IF THEY ARE NOT INTIMATELY FAMILIAR WITH THAT SPECIFIC PROC). I RE-ENTERED DOWNWIND AND PROCEEDED TO LAND.