NMAC

Narrative

WE WERE XING THE IND VOR 195 DEG RADIAL AT ABOUT 20 NM AT 6000 FT; SPD 250 KIAS. IND APCH WAS TALKING TO A C182 AT 7000 FT HDG SE. THE C182 STATED HE HAD US IN SIGHT AND WAS TOLD TO MAINTAIN VISUAL SEPARATION. IND CALLED OUT THE TFC TO US AT 12 O'CLOCK; WE STATED WE DID NOT HAVE THE TFC IN SIGHT. WE WERE THEN CLRED TO 10000 FT BY IND APCH. AS WE WERE PASSING THROUGH ABOUT 6500 FT; WE PICKED UP THE C182 AT LESS THAN 1/2 NM AHEAD. WE HAD TO DISCONNECT THE AUTOPLT AND BEGIN A DSNDING TURN TO THE R. AS WE DID THIS THE C182 PLT STATED; 'THIS IS GETTING TOO CLOSE.' WE INFORMED IND APCH OF OUR NEAR-MISS AND THAT WE WERE LEVEL AT 6000 FT. THE C182 PLT HAD BADLY MISJUDGED OUR SPD AND COULD NOT MANEUVER OUT OF OUR WAY. HE ALSO WAS INITIALLY TURNING INTO US (R) AND THEN STARTED TURNING AWAY (L). THE IND DEP CTLR IS THE ONLY ONE WHO HAD A FULL UNDERSTANDING OF WHERE EACH ACFT WAS. HE SHOULD NEVER HAVE CLRED US TO 10000 FT SINCE WE WERE ON AN INTERCEPT COURSE AND WE DID NOT SEE THE TFC. DUE TO ALERTNESS OF OUR CREW; WE WERE ABLE TO AVOID A POTENTIALLY HAZARDOUS SITUATION.