NMAC.

Narrative

WE HAD LEFT FULLERTON ARPT FOR OUR PM SESSION OF TFC WATCH. IT WAS MY THIRD DAY OF TRAINING IN THIS ACFT FOR TFC RPTING. THE TRAINING CFI WAS THE PLT THAT DID THIS BEFORE ME. I WAS ASKED TO FOLLOW CERTAIN FREEWAYS. THIS LED TO US FOLLOWING THE 5 AND 55 FREEWAY. OUR REQUEST WITH SNA ADVISORIES WAS APPROVED AND WE WERE ASSIGNED A SQUAWK CODE. WE WERE IN RADAR CONTACT. AT THAT TIME THE SKY WAS CLR (BELOW THE 3000 FT CEILING!) AS WE APCHED THE 55 FREEWAY WE TURNED R ALONG THE 55 FREEWAY. AS WE RAISED OUR WING WE COULD SEE AN ACFT APCHING FROM THE L ON THE SNA LOC. WE INCREASED PWR A LITTLE SO WE COULD MANEUVER AWAY FROM HIM. AT THIS TIME THE CTLR RPTED THE TFC FOR US. WE TOLD HIM WE HAD HIM IN SIGHT AND THAT WE WOULD KEEP OUR SEPARATION FROM HIM. WE WERE NEVER VERY CLOSE BUT CLOSE ENOUGH FOR US TO SHOW UP ON THE AIRLINER'S TCASII. HE NEVER HAD US IN SIGHT AND MIGHT HAVE WORRIED A LOT DUE TO THE TCASII SIGNAL. APPARENTLY HE HAD CALLED THE CTLING AGENCY; ASKING WHAT HAD HAPPENED AND WHY WE WERE THERE. WE WERE TOLD TO CALL THE AGENCY AFTER WE LANDED. THE TRAINING CFI CALLED THE SUPVR AND HAD EXPLAINED THE SIT. WE STAYED W OF THE 55 FREEWAY ALL THE TIME. I WISH THE CTLR HAD WARNED US EARLIER TO AVOID THIS SIT SINCE WE WERE ON A SQUAWK CODE IN RADAR CONTACT. NOW THAT I HAVE BEEN ASSIGNED AS THE FULL TIME TFC WATCH PLT I KEEP AN EXTRA MARGIN OF SAFETY IN THE DISTANCE BTWN ME AND THE LOC. NOT ONLY AT SNA BUT AT ALL CLASS C ARPTS. I WILL TRAIN THE FUTURE PLTS FOR TFC WATCH TO DO THE SAME. MORE OUTSIDE SCAN CAN'T HURT EITHER. THE PLTS OF THE B- 737 AIRLINER PROBABLY COULDN'T SEE US BECAUSE OF THE LOW SUN POS BEHIND US. MY PROC HAS BEEN A GREAT SUCCESS IN SAFETY SO I WILL CONTINUE TO STAY A LITTLE BIT MORE AWAY FROM THE LOC. ONE MORE THING. WHEN I WROTE INCREASED PWR TO MANEUVER AWAY IT MEANS AWAY FOR MORE SEPARATION. WE WERE NEVER IN HIS COURSE OR ALT. IT IS A NATURAL REACTION TO DO SO. LIKE I SAID; WE HAD HIM IN SIGHT; EVEN BEFORE THE CTLR ADVISED US OF HIS PRESENCE. SUPPLEMENTAL INFO FROM ACN 267613: WE WERE CLRED FOR AN ILS TO RWY 19R AFTER BEING VECTORED FOR APCH. ON GS AND LOC. WERE TOLD CESSNA HAD US IN SIGHT AND WAS TO FOLLOW US FOR AN APCH TO RWY 19L. WE HAD NOT SEEN HIM. GOT TCASII ALERT AND OBSERVED THE CESSNA AT OUR ALT AND A LITTLE R OF OUR COURSE ON A HDG THAT WOULD CROSS OUR PATH. PUSHED ACFT OVER TO INCREASE DISTANCE AND MADE NORMAL LNDG. THE MIX OF VFR AND IFR SMALL ACFT AND JETS USING PARALLEL APCH SO CLOSE TOGETHER IN MARGINAL VISIBILITY IS; IN MY OPINION; A VERY DANGEROUS SIT. GND PERSONNEL ADVISED ME THAT THEY HEAR PLTS COMPLAINING ALL THE TIME OF NEAR MISS SITS; ESPECIALLY IN LOW VISIBILITY; AT THIS ARPT.