A BE35 PLT HITS THE WAKE OF AN ACR THAT DSNDS IN FRONT OF HIM WHILE HE WAS IN CRUISE AT 8000 FT. THE BONANZA WAS JOLTED THEN ROLLED TO THE R 360 DEGS BY THE WAKE. NO DAMAGE; BUT THE RPTR FEELS THAT THIS WAS A DELIBERATE ACT ON THE PART OF THE ACR FLC. BEECH V35B ACR UNKNOWN WITH TAIL MOUNTED ENGS.

Date: 1997-03 · Aircraft: Bonanza 35

Anomalies: conflict-airborne-conflict|deviation-discrepancy-procedural-clearance|deviation-discrepancy-procedural-far|inflight-event-encounter-loss-of-aircraft-control|inflight-event-encounter-other-unknown

Synopsis

A BE35 PLT HITS THE WAKE OF AN ACR THAT DSNDS IN FRONT OF HIM WHILE HE WAS IN CRUISE AT 8000 FT. THE BONANZA WAS JOLTED THEN ROLLED TO THE R 360 DEGS BY THE WAKE. NO DAMAGE; BUT THE RPTR FEELS THAT THIS WAS A DELIBERATE ACT ON THE PART OF THE ACR FLC. BEECH V35B ACR UNKNOWN WITH TAIL MOUNTED ENGS.

Narrative

I WAS ADVISED BY CHS APCH OF TFC IN MY 3 O'CLOCK POS. I ADVISED CHS THAT I HAD THE TFC IN SIGHT AND AS A PRECAUTION TURNED ON MY STROBE LIGHTS. AT THE SAME TIME; AN ACR WAS ADVISED THAT THEY HAD TFC AT 10 O'CLOCK. AN OPEN MIKE MADE A COMMENT SOMETHING LIKE 'OH YEAH' AND THE NEXT XMISSION WAS THE ACR'S ACKNOWLEDGEMENT THAT THEY HAD THE TFC. AT THAT TIME WE BOTH HAD VISUAL CONTACT WITH EACH OTHER. THE CTLR ADVISED ME THAT THE ACR HAD ME IN SIGHT. THE CTLR INSTRUCTED THE ACR TO MAINTAIN VISUAL SEPARATION AND CLRED THEM FOR THE DSCNT AT PLT'S DISCRETION. I WAS SETTING UP MY RADIOS FOR THE NEXT RTE SEGMENT WHEN I LOOKED UP TO SEE THE ACR ACFT PASS IN FRONT OF ME AT MY ALT (8000 FT). I HAD ONLY ABOUT 5 SECONDS TO REACT AND PREPARE FOR THE WAKE TURB; WHICH INVERTED MY ACFT. I WAS ABLE TO RECOVER FROM THE UNUSUAL ATTITUDE; ALTHOUGH ALL OBJECTS IN THE CABIN WERE SCATTERED ABOUT. THE AUTOPLT DISENGAGED AND I LOST MY EYEGLASSES. I CALLED THE CTLR AND COMMENTED THAT THE ACR COULD HAVE PASSED BEHIND ME INSTEAD OF CAUSING WHAT COULD HAVE BEEN A FATAL ACCIDENT. I FEEL LUCKY THAT I WAS ABLE TO RECOVER FROM THIS UNFORTUNATE DISPLAY OF IRRESPONSIBLE OP AND OF POOR OPERATING PROC ON THE ACR FLC. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: THE PLT WAS FLYING A BEECH V35B BONANZA ON AN IFR FLT PLAN AT 8000 FT UNDER THE CTL OF CHS APCH CTL WHEN THE WAKE ENCOUNTER OCCURRED. HE SAID THAT WHEN THE ACR TFC WAS POINTED OUT TO HIM IT WAS ABOVE HIM AT ABOUT 3 O'CLOCK. THE ACR ALSO SAID THAT HE WAS IN SIGHT AND THE CTLR CLRED THE ACR TO MAINTAIN VISUAL SEPARATION AND DSND TO A LOWER ALT; ACCORDING TO THE RPTR. THEN HE SAID THAT HE LOOKED AT HIS MAP AND STARTED TO RESET HIS RADIOS FOR A TURN TOWARDS HIS NEXT NAV LEG. WHEN HE LOOKED UP; HE WAS SURPRISED TO SEE THE ACR IN FRONT OF HIM DSNDING THROUGH 8000 FT AND VERY CLOSE. HE SAID THAT HE HAD THOUGHT THAT THE ACR WAS GOING TO CROSS BEHIND HIM BASED ON ITS INITIAL DIRECTION AND ALT AND RELATIVE TO HIM. NOW HE REALIZED ALMOST AS IT BEGAN THAT HE WAS GOING TO HIT THE ACR'S WAKE. THE FIRST JOLT INCURRED BOTH POSITIVE AND NEGATIVE G-FORCES CAUSING HIS HEAD TO STRIKE THE CEILING OF THE ACFT; EVEN THOUGH HIS SEAT BELT WAS FASTENED SECURELY. HIS HOOD AND THE LIFE PRESERVERS WERE THROWN ABOUT THE CABIN. THEN THE ACFT ROLLED 360 DEGS TO THE R AND DURING THE ROLL MORE DEBRIS FLOATED ABOUT THE CABIN INCLUDING HIS GLASSES AND MAPS. AFTER THE ROLL THE ACFT WAS IN SMOOTH AIR BELOW HIS ASSIGNED ALT (HE CANNOT REMEMBER THE ALT) AND HE CLBED TO 8000 FT AND RPTED THE INCIDENT TO THE CTLR. AFTER LNDG AT X31 HE CALLED CHS APCH AND REQUESTED THAT THE TAPES AND RADAR INFO BE SAVED. HE WAS TOLD THAT THIS WOULD BE DONE AND TO CALL BACK ON MONDAY TO TALK TO THE FACILITY MGR. HE ALSO HAD HIS ACFT INSPECTED AND NO DAMAGE WAS FOUND. ON MONDAY; THE RPTR ALLEGES THAT THE FACILITY MGR TOLD HIM THAT THE RADAR TAPE WOULD NOT BE AVAILABLE BECAUSE OF A FAILURE AT THE REMOTE RADAR SITE; HOWEVER; UPON FURTHER QUESTIONING; SAID THAT SOME TRACKS WERE AVAILABLE AND SOME OF THE VOICE TAPES WOULD BE AVAILABLE. SEVERAL FAA ACQUAINTANCES COUNSELED THAT HE WOULD NOT FIND THE PURSUIT TO BE WORTH THE TROUBLE; ACCORDING TO THE RPTR. HE ALSO SAID THAT HE TRIED TO CALL THE ACR'S CHIEF PLT WITHOUT SUCCESS. WHAT PARTICULARLY ANGERED HIM; THE RPTR SAID; WAS A SHORT XMISSION THAT SOUNDED LIKE A STUCK MIKE; THAT SAID 'WATCH THIS.' HE UNDERSTOOD THIS TO MEAN THAT THE ACR CAPT DELIBERATELY FLEW CLOSE IN FRONT OF HIM. HE SAID THAT HE WAS ALSO ANGRY WITH HIMSELF FOR NOT WATCHING THE TFC UNTIL IT PASSED.

Source: NASA Aviation Safety Reporting System (public domain). Reports are voluntary submissions and are not verified by NASA.