WAKE TURB ENCOUNTER AT 400 FT ON APCH. MD82 VIOLENT INSTANT ROLL OF ACFT TO THE R UP TO 60 DEG BANK. PF; CAPT; COUNTERED THE ROLL IMMEDIATELY AND EXECUTED A GAR. WAKE WAS CAUSED BY B767 WHICH WAS TURNING OFF THE RWY AT THE TIME OF THE ENCOUNTER.

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LOCATION: 1 MI ILS FINAL RWY 22R ORD. NORMAL OP FROM BDL TO ORD. WERE ADVISED THAT WE WERE FOLLOWING A HVY. TCASII WAS INOP. DUE TO THIS AND AS A PRECAUTION; CAPT ELECTED TO FLY 1 DOT ABOVE GS. NORMAL APCH UNTIL 400 FT CALL. AT A SPD OF REF PLUS 15 AND 1 DOT ABOVE THE GS AND JUST BELOW 400 FT; THE AIRPLANE ROLLED UNCTLABLY R TO ABOUT 60 DEGS OF BANK. AFTER LOOKING AT CAPT TO INSURE HE WAS FLYING I NOTED ABOUT FULL AILERON INPUT AND FELT OPPOSITE RUDDER INPUT. WE RECOVERED IN ABOUT 3-5 SECONDS I GUESS. WE WERE BELOW 300 FT; VERY NOSE HIGH VISUALLY AND EXECUTED A GAR AND LNDG ON RWY 14R AT ORD. WINDS WERE RPTED AS 340 DEGS AT 4 KTS BY TWR. NO INJURIES. ANOTHER FLAWLESS PERFORMANCE BY THIS CAPT WHO I KNOW QUITE WELL. ACFT WE WERE FOLLOWING WAS A B767. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: CALLBACK IN CONJUNCTION WITH THE SPECIAL WAKE TURB STUDY. ACFT VERIFIED AS MD82. RPTR FO RELATED THAT THE CAPT; PF; FLEW THE ACFT VERY WELL AT THE TIME OF THE UPSET AND INSTANTLY REGAINED CTL. THE CAPT WAS SHOCKED AND DIDN'T FEEL COMFORTABLE CONTINUING TO FLY IN HIS PRESENT MENTAL STATE; SO HE TURNED THE ACFT OVER TO THE FO WHO FLEW THE NEXT APCH AND LNDG TO A DIFFERENT RWY.