2 SMAS HAD AN NMAC APCHING THE TFC PATTERN AT VNY.

Narrative

WAS IN CONTACT WITH BUR APCH CTL 17-10 MI N OF VNY ARPT IN VICINITY OF BUR CLASS C AIRSPACE. BUR APCH ADVISED OF SEVERAL TARGETS AHEAD IN VICINITY OF VNY AND FOLLOWING PIPER MALIBU. THE ADVICE OF THE FOLLOWING MALIBU WAS INTERPRETED TO MEAN KEEP MY SPD UP AND CONTINUE TO THE ARPT SO AS NOT TO CONFLICT WITH THE MALIBU IF HE PASSED ME. BUR APCH INSTRUCTED ME TO CONTACT VNY TWR WITH THE VFR XPONDER CODE OF 1200. THE TWR ADVISED THAT I CONTINUE A STRAIGHT IN APCH TO RWY 16R; AND RPT ABEAM THE RESERVOIR; A STANDARD RPTING POINT. I WAS ADVISED TO CONTINUE A STRAIGHT-IN APCH. SPD WAS MAINTAINED 150-200 KIAS DUE TO THE FOLLOWING MALIBU. SUBSEQUENTLY; TWR NOTIFIED ME THAT A CESSNA WAS AHEAD OF ME AT THE SEMI VALLEY FREEWAY AND ASKED IF I COULD STILL MAKE THE FIELD (MY ESTIMATE THE CESSNA WAS 1-2 MI AHEAD). I REPLIED I WOULD IMMEDIATELY SLOW DOWN TO ABOUT 80 OR 90 KTS TO PRECLUDE OVERTAKING THE CESSNA. (I KNEW THE MALIBU WAS SOMEWHERE BEHIND ME AND ASSUMED SIMILAR INFO WOULD BE PASSED TO HIM.) I WAS INSTRUCTED TO TURN R 360 DEGS (WHICH I ASSUMED WAS FOR SPACING). AS I STARTED THE TURN; THE MALIBU FLASHED PAST ME ON THE R AT THE SAME ALT. MY PAX; A PVT PLT WITH MORE LOGGED FLYING TIME THAN I; AND I BOTH CONCUR THAT THE MALIBU'S HORIZ MISS DISTANCE DID NOT EXCEED 125-150 FT. SUBSEQUENT TWR INTERCOM CONVERSATION WITH TWR SUPVR AFTER LNDG INDICATES MALIBU MAY HAVE HAD ENG PROB. NOTHING HEARD BY ME DURING FLT TENDS TO CONFIRM THAT. MY OPINION: TWR CTLR GOOFED AND SUPVR WANTED NO PROBS -- OR PERSON ON THE OTHER END OF INTERCOM WAS NOT SUPVR SINCE I WAS NOT ALLOWED TO ENTER TWR ON WORKLOAD/SHORTHANDED PRETEXT. TWR CTLR WAS EITHER NOT AWARE OF PROX OF BOTH ACFT OR INEXPERIENCE OR BOTH. PROCS TO PRECLUDE RECURRENCE MANDATORY.