BE99 had less than standard wake turbulence separation behind B767. System error.

Attributes
ACN	326948
Time
Date	199601
Day	Sun
Local Time Of Day	1801 To 2400
Place
Locale Reference	atc facility : mia
State Reference	FL
Altitude	msl bound lower : 3000 msl bound upper : 3000
Environment
Flight Conditions	IMC
Light	Night
Aircraft 1
Controlling Facilities	tracon : mia
Operator	common carrier : air taxi
Make Model Name	Airliner 99
Operating Under FAR Part	Part 135
Flight Phase	cruise other descent : approach
Flight Plan	IFR
Aircraft 2
Operator	common carrier : air carrier
Make Model Name	B767 Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Navigation In Use	Other Other
Flight Phase	descent : approach
Route In Use	enroute : on vectors
Flight Plan	IFR
Person 1
Affiliation	company : air taxi
Function	flight crew : first officer
Qualification	pilot : commercial pilot : instrument
Experience	flight time last 90 days : 300 flight time total : 1300 flight time type : 400
ASRS Report	326948
Person 2
Affiliation	company : air taxi
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Events
Anomaly	conflict : airborne less severe non adherence : published procedure non adherence : required legal separation other anomaly other anomaly other
Independent Detector	other flight crewa
Resolutory Action	flight crew : regained aircraft control
Consequence	faa : reviewed incident with flight crew
Miss Distance	horizontal : 18000 vertical : 0
Supplementary
Primary Problem	ATC Human Performance
Air Traffic Incident	Operational Error

Narrative:

Myself and the captain were on the ILS for runway 9R at mia, when we encountered severe wake turbulence. The controller on frequency 120.50 at the time never informed us of a heavy B767 in front of us. We are a beech 99. The approach controller never changed us to tower or cleared us for the approach and never notified us. I suggest that all pilots must respond to any information about wake turbulence. The controller denied all of it when we called him on the telephone. I also suggest that mia abides by the 5 mi rule in spacing! Callback conversation with reporter revealed the following information: reporter stated he saw the B767 about 3 mi ahead. Approach controller never issued traffic or gave wake turbulence advisory. Reporter stated loss of aircraft control for about 10 seconds. Aircraft rolled 90 degrees. TRACON supervisor said there was standard separation and the controller had issued traffic.

Original NASA ASRS Text

Title: BE99 HAD LESS THAN STANDARD WAKE TURB SEPARATION BEHIND B767. SYS ERROR.

Narrative: MYSELF AND THE CAPT WERE ON THE ILS FOR RWY 9R AT MIA, WHEN WE ENCOUNTERED SEVERE WAKE TURB. THE CTLR ON FREQ 120.50 AT THE TIME NEVER INFORMED US OF A HVY B767 IN FRONT OF US. WE ARE A BEECH 99. THE APCH CTLR NEVER CHANGED US TO TWR OR CLRED US FOR THE APCH AND NEVER NOTIFIED US. I SUGGEST THAT ALL PLTS MUST RESPOND TO ANY INFO ABOUT WAKE TURB. THE CTLR DENIED ALL OF IT WHEN WE CALLED HIM ON THE TELEPHONE. I ALSO SUGGEST THAT MIA ABIDES BY THE 5 MI RULE IN SPACING! CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: RPTR STATED HE SAW THE B767 ABOUT 3 MI AHEAD. APCH CTLR NEVER ISSUED TFC OR GAVE WAKE TURB ADVISORY. RPTR STATED LOSS OF ACFT CTL FOR ABOUT 10 SECONDS. ACFT ROLLED 90 DEGS. TRACON SUPVR SAID THERE WAS STANDARD SEPARATION AND THE CTLR HAD ISSUED TFC.

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.