Narrative:

I was descending out of 6;000 ft on a 120 heading approximately 16 miles from the my destination VOR; when ATC issued me a traffic advisory for a caravan at my 2:00 position at 10 miles; climbing out of 3;500 ft; headed northbound. A few moments later the caravan pilot reports me in sight. My TCAS showed a target at my 2:00 position and 2;000 ft below me. As I approached 5;500 ft; the caravan is now at my 1:00 position at 5 NM. As I approach 5;200 ft my TCAS issues a traffic alert; so a initiate a climbing right and turn to the south. At 5;500 ft I witness the caravan pass 200 ft below me. I asked ATC whether the caravan was IFR or VFR. They responded VFR. ATC instructed me to switch to the CTAF. I informed ATC that the caravan pilot didn't seem to initiate any type of evasive maneuvering to avoid a conflict with me.

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Original NASA ASRS Text

Title: An IFR BE-1900 and a VFR Caravan had a near miss at about 5;200 FT after the Caravan pilot reported the BE-1900 in sight but took no evasive action.

Narrative: I was descending out of 6;000 FT on a 120 heading approximately 16 miles from the my destination VOR; when ATC issued me a traffic advisory for a Caravan at my 2:00 position at 10 miles; climbing out of 3;500 FT; headed northbound. A few moments later the Caravan pilot reports me in sight. My TCAS showed a target at my 2:00 position and 2;000 FT below me. As I approached 5;500 FT; the Caravan is now at my 1:00 position at 5 NM. As I approach 5;200 FT my TCAS issues a traffic alert; so a initiate a climbing right and turn to the south. At 5;500 FT I witness the Caravan pass 200 FT below me. I asked ATC whether the Caravan was IFR or VFR. They responded VFR. ATC instructed me to switch to the CTAF. I informed ATC that the Caravan pilot didn't seem to initiate any type of evasive maneuvering to avoid a conflict with me.

Data retrieved from NASA's ASRS site as of July 2013 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.