AN ACR BEECH 99 HITS THE WAKE OF A B767 AND ROLLS INTO A 90 DEG L BANK. THE RPTR SAID THAT THERE WAS NO WARNING OR ADVISORY ABOUT THE B767 UNTIL HE RPTED THE ENCOUNTER TO THE CTLR. THE CTLR HAD A HIGH WORKLOAD. THE TRACON SUPVR TOLD THE RPTR THAT AN ADVISORY HAD BEEN ISSUED.

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MIA APCH CTLR RWY 9R WAS VERY BUSY; SEQUENCED ANOTHER ACFT IN FRONT OF US WITHOUT TELLING US 'CAUTION WAKE TURB B767' AND WE WERE CLRLY TOO CLOSE; WITHIN 3 MI. JUST AS WE INTERCEPTED THE GS; WE HIT THE WAKE TURB OF THE B767 AND WENT INTO AN IMMEDIATE 90 DEG BANK AND BOTH COPLT AND MYSELF WORKED TO KEEP THE ACFT UPRIGHT. NO PAX ON BOARD. WE LOST L TORQUE GAUGE WITH THE G FORCES. MIA APCH AND TWR REALIZED THEY SCREWED UP AND SEQUENCED US TO LAND RWY 9L; BUT THIS WAS AFTER THE FACT (TOO LATE). I PHONED ATC SUPVR AND TOLD HIM NEITHER MY COPLT OR MYSELF HEARD A 'CAUTION WAKE TURB' IN FACT I THOUGHT WE WERE FOLLOWING A JETSTREAM 31 AS RPTED ON ATC'S LAST XMISSION. I'M BASED IN MIA; BUT MIA IS BECOMING HAZARDOUS TO MY HEALTH. SOMETHING MUST BE DONE. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: THE RPTR WAS FLYING AN EMPTY BEECH 99 WHEN HE HIT THE WAKE OF A B767. HE SAID THAT THERE HAD BEEN NO PRIOR WARNING ABOUT THE B767 FROM THE CTLR OR FROM ANY LIGHT NIBBLES. HE STILL THOUGHT THAT THE ACFT IN FRONT WAS A JETSTREAM 31 THAT HE HAD BEEN FOLLOWING. AFTER THE FLC RECOVERED FROM THE 90 DEG L BANK THE CTLR IDENTED THE TFC 3 MI AHEAD AS A B767. THE CTLR THEN OFFERED THE RPTR RWY 9L WHICH HE ACCEPTED. AFTER LNDG; THE CAPT CALLED THE TRACON SUPVR AND SPOKE TO HIM ABOUT THE SPACING AND THE REQUIREMENT FOR ADVISORIES. THE SUPVR STATED THAT THE FLC HAD BEEN ISSUED ADVISORIES. THE RPTR DENIES THIS. HE THINKS THAT THE WORKLOAD ON THE CTLR WAS SUCH THAT THE CTLR LOST TRACK OF WHAT TASKS WERE ACTUALLY COMPLETED.