Narrative:

I had departed VFR from whitman airport, and climbed to an altitude of 3500' which was to be my cruising altitude to torrance, ca. I circumnaved the vny control zone and the bur arsa. I was heading 132 degrees in order to transition the special flight rules area through the TCA to torrance. At approximately 5 mi from santa monica VOR an small transport which appeared to be from lax was climbing to my altitude from the opp direction. We both took evasive action deviating to the right, and though I don't feel that either of us was in any danger, the potential for problems exist when airline traffic interferes and normally travels in the suggested VFR transition areas. In summary I was traveling as suggested by the newly released suggested arrival and departure routes for airports in the la basin. It is obvious to me that approach and departure should be made more aware of these routes, and be advised to avoid them. The small transport flight terminated in vny. I was squawking 1201 and terminated my flight in torrance. Callback conversation with reporter revealed the following: reporter felt departure control should not be sending traffic through the approach to the VFR corridor over lax. I pointed out the small transport had probably had a TCA clearance from lax and as soon as into sector of TCA where floor was above him at 5000' MSL had probably been sent over to bur approach. Reporter agreed the small transport probably had to climb through the small aircraft altitude because of terrain to north on transition to vny. Another point brought out by reporter was question why the northwest sector of the lax TCA floor was at 4000' MSL as this caused VFR traffic coming northbound out of the VFR TCA corridor at 4500' to descend to below 4000' to get below floor to proceed wbound along the coast thus putting them down at the 3500 being used by opp direction approaching the corridor sebnd. He suggests if no good reason for floor to still be at 4000' in this sector it be raised to 4500 or 5000' MSL, which is the MEA for the V arwy into smo in this area. He felt this would be a good safety improvement.

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Original NASA ASRS Text

Title: NMAC BETWEEN GA-SMA APCH TO LAX TCA VFR CORRIDOR AND ACR-SMT FROM LAX TO VNY.

Narrative: I HAD DEPARTED VFR FROM WHITMAN ARPT, AND CLBED TO AN ALT OF 3500' WHICH WAS TO BE MY CRUISING ALT TO TORRANCE, CA. I CIRCUMNAVED THE VNY CTL ZONE AND THE BUR ARSA. I WAS HDG 132 DEGS IN ORDER TO TRANSITION THE SPECIAL FLT RULES AREA THROUGH THE TCA TO TORRANCE. AT APPROX 5 MI FROM SANTA MONICA VOR AN SMT WHICH APPEARED TO BE FROM LAX WAS CLBING TO MY ALT FROM THE OPP DIRECTION. WE BOTH TOOK EVASIVE ACTION DEVIATING TO THE RIGHT, AND THOUGH I DON'T FEEL THAT EITHER OF US WAS IN ANY DANGER, THE POTENTIAL FOR PROBS EXIST WHEN AIRLINE TFC INTERFERES AND NORMALLY TRAVELS IN THE SUGGESTED VFR TRANSITION AREAS. IN SUMMARY I WAS TRAVELING AS SUGGESTED BY THE NEWLY RELEASED SUGGESTED ARR AND DEP ROUTES FOR ARPTS IN THE LA BASIN. IT IS OBVIOUS TO ME THAT APCH AND DEP SHOULD BE MADE MORE AWARE OF THESE ROUTES, AND BE ADVISED TO AVOID THEM. THE SMT FLT TERMINATED IN VNY. I WAS SQUAWKING 1201 AND TERMINATED MY FLT IN TORRANCE. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING: RPTR FELT DEP CTL SHOULD NOT BE SENDING TFC THROUGH THE APCH TO THE VFR CORRIDOR OVER LAX. I POINTED OUT THE SMT HAD PROBABLY HAD A TCA CLRNC FROM LAX AND AS SOON AS INTO SECTOR OF TCA WHERE FLOOR WAS ABOVE HIM AT 5000' MSL HAD PROBABLY BEEN SENT OVER TO BUR APCH. RPTR AGREED THE SMT PROBABLY HAD TO CLB THROUGH THE SMA ALT BECAUSE OF TERRAIN TO N ON TRANSITION TO VNY. ANOTHER POINT BROUGHT OUT BY RPTR WAS QUESTION WHY THE NW SECTOR OF THE LAX TCA FLOOR WAS AT 4000' MSL AS THIS CAUSED VFR TFC COMING NBOUND OUT OF THE VFR TCA CORRIDOR AT 4500' TO DSND TO BELOW 4000' TO GET BELOW FLOOR TO PROCEED WBOUND ALONG THE COAST THUS PUTTING THEM DOWN AT THE 3500 BEING USED BY OPP DIRECTION APCHING THE CORRIDOR SEBND. HE SUGGESTS IF NO GOOD REASON FOR FLOOR TO STILL BE AT 4000' IN THIS SECTOR IT BE RAISED TO 4500 OR 5000' MSL, WHICH IS THE MEA FOR THE V ARWY INTO SMO IN THIS AREA. HE FELT THIS WOULD BE A GOOD SAFETY IMPROVEMENT.

Data retrieved from NASA's ASRS site as of August 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.