Narrative:

Local IFR conditions. On localizer runway 36 approach ocf, approximately 2 1/2-3 mi south of ocf. Passed OM inbound. Started descent to 620' MSL, minimums. Broke out of ceiling at 820' MSL, concurrent with '200 above minimums' call by copilot. Immediately following call, crew glimpsed an small aircraft Y go overhead in base of the clouds, eastbound in a descent, perpendicular to our flight path. Small aircraft Y then made a hard left turn (I guess to get a look at us). Then we lost sight of them as we continued inbound with runway in sight. Landed west/O incident. Small aircraft Y had crossed overhead at no more than 30' above us. We did not get its north #. We were still in voice contact with ZJX, but he was unable to see us (or the other aircraft) on radar due to our altitude. We were still on IFR squawk. If aircraft had been spotted a second or 2 earlier and evasive action initiated on our part, I believe a collision would have occurred as most any action would have raised some portion of our aircraft into the small aircraft Y flight path. I do not believe that there was any fault or deviation from standard practices or instrument procedures by myself, my copilot or ZJX. I feel (as does my company flight department) that a MVFR-IFR situation at ocf is rather dangerous due to the close proximity of several grass airports to the localizer 36 approach. Pilot on the ground at ocf had observed small aircraft Y circling in the area southwest of ocf. Report was filed by me over the telephone with gainesville FSS supervisor. I can only speculate on the extreme level of stupidity of a pilot who would fly around in the base of the clouds in the area of an instrument approach facility. Maybe he was lost, but there was plenty of VFR WX in the area. He certainly shouldn't have been where he was for any reason. He about sent 9 on our aircraft to the great beyond!

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Original NASA ASRS Text

Title: SMT ON IFR APCH TO UNCONTROLLED ARPT SAW SMA PASS OVERHEAD IN VERY CLSOE PROX JUST AS THE SMT CLEARED THE BASE OF THE CLOUDS.

Narrative: LCL IFR CONDITIONS. ON LOC RWY 36 APCH OCF, APPROX 2 1/2-3 MI S OF OCF. PASSED OM INBND. STARTED DSCNT TO 620' MSL, MINIMUMS. BROKE OUT OF CEILING AT 820' MSL, CONCURRENT WITH '200 ABOVE MINIMUMS' CALL BY COPLT. IMMEDIATELY FOLLOWING CALL, CREW GLIMPSED AN SMA Y GO OVERHEAD IN BASE OF THE CLOUDS, EBND IN A DSCNT, PERPENDICULAR TO OUR FLT PATH. SMA Y THEN MADE A HARD LEFT TURN (I GUESS TO GET A LOOK AT US). THEN WE LOST SIGHT OF THEM AS WE CONTINUED INBND WITH RWY IN SIGHT. LANDED W/O INCIDENT. SMA Y HAD CROSSED OVERHEAD AT NO MORE THAN 30' ABOVE US. WE DID NOT GET ITS N #. WE WERE STILL IN VOICE CONTACT WITH ZJX, BUT HE WAS UNABLE TO SEE US (OR THE OTHER ACFT) ON RADAR DUE TO OUR ALT. WE WERE STILL ON IFR SQUAWK. IF ACFT HAD BEEN SPOTTED A SECOND OR 2 EARLIER AND EVASIVE ACTION INITIATED ON OUR PART, I BELIEVE A COLLISION WOULD HAVE OCCURRED AS MOST ANY ACTION WOULD HAVE RAISED SOME PORTION OF OUR ACFT INTO THE SMA Y FLT PATH. I DO NOT BELIEVE THAT THERE WAS ANY FAULT OR DEVIATION FROM STANDARD PRACTICES OR INSTRUMENT PROCS BY MYSELF, MY COPLT OR ZJX. I FEEL (AS DOES MY COMPANY FLT DEPT) THAT A MVFR-IFR SITUATION AT OCF IS RATHER DANGEROUS DUE TO THE CLOSE PROX OF SEVERAL GRASS ARPTS TO THE LOC 36 APCH. PLT ON THE GND AT OCF HAD OBSERVED SMA Y CIRCLING IN THE AREA SW OF OCF. RPT WAS FILED BY ME OVER THE TELEPHONE WITH GAINESVILLE FSS SUPVR. I CAN ONLY SPECULATE ON THE EXTREME LEVEL OF STUPIDITY OF A PLT WHO WOULD FLY AROUND IN THE BASE OF THE CLOUDS IN THE AREA OF AN INSTRUMENT APCH FAC. MAYBE HE WAS LOST, BUT THERE WAS PLENTY OF VFR WX IN THE AREA. HE CERTAINLY SHOULDN'T HAVE BEEN WHERE HE WAS FOR ANY REASON. HE ABOUT SENT 9 ON OUR ACFT TO THE GREAT BEYOND!

Data retrieved from NASA's ASRS site as of August 2007 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.