Narrative:

Mia approach controller runway 9R was very busy, sequenced another aircraft in front of us without telling us 'caution wake turbulence B767' and we were clearly too close, within 3 mi. Just as we intercepted the GS, we hit the wake turbulence of the B767 and went into an immediate 90 degree bank and both copilot and myself worked to keep the aircraft upright. No passenger on board. We lost left torque gauge with the G forces. Mia approach and tower realized they screwed up and sequenced us to land runway 9L, but this was after the fact (too late). I phoned ATC supervisor and told him neither my copilot or myself heard a 'caution wake turbulence' in fact I thought we were following a jetstream 31 as reported on ATC's last transmission. I'm based in mia, but mia is becoming hazardous to my health. Something must be done. Callback conversation with reporter revealed the following information: the reporter 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 controller or from any light nibbles. He still thought that the aircraft in front was a jetstream 31 that he had been following. After the flight crew recovered from the 90 degree left bank the controller idented the traffic 3 mi ahead as a B767. The controller then offered the reporter runway 9L which he accepted. After landing, the captain called the TRACON supervisor and spoke to him about the spacing and the requirement for advisories. The supervisor stated that the flight crew had been issued advisories. The reporter denies this. He thinks that the workload on the controller was such that the controller lost track of what tasks were actually completed.

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Original NASA ASRS Text

Title: 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.

Narrative: 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.

Data retrieved from NASA's ASRS site as of July 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.