Narrative:

I departed runway 16R straight out to shoreline then left turn was approved. Due to the busy airspace, I was trying to get the ATIS at sna while also listening to lgb tower. I heard tower issue a TA but was not sure if it was for me. I turned off #2 to listen for reissuance of traffic, meanwhile treating the advisory I heard as if it were for me. The TA I heard was '...traffic 1 O'clock, 1 mi swbound, an small aircraft.' well, since I was south and I felt this was not for me as it would be to my right and going away from me. I scanned and saw nothing. I then scanned my instrument panel. Suddenly, I saw the small aircraft fill all the windows on the left side of the aircraft, he was climbing and turning to the left approximately 20 degrees of bank. I banked hard right, hard right rudder and pulled back hard. I closed my eyes because I was sure we were going to hit but we didn't. I called lgb to ask if the small aircraft traffic call had been for my aircraft, they said yes. I told him we almost hit and that I would be filing an near midair collision. I called lgb tower supervisor and he said someone on the ground at the beach had called to advise that 2 aircraft nearly collided at the shoreline at the time of my occurrence. He seemed to feel that traffic was issued and that was that. I have flown in the los angeles area for 17 yrs. I have been a controller in the los angeles area for 14 hours. This is one busy place! You have to be ahead to provide the controllers with stuff they need to know you know. There is no substitute for a constant scan. I did not ask if the traffic call was for me or not, as I felt that when I did not acknowledge (if it was for me) it would be reissued. I feel there is a system-wide problem of controllers not listening to pilot readbacks or acknowledgements. The traffic call was a good one, just wish I would have known from the gitgo, that it was for me.

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Original NASA ASRS Text

Title: 2 SMAS HAD AN NMAC.

Narrative: I DEPARTED RWY 16R STRAIGHT OUT TO SHORELINE THEN L TURN WAS APPROVED. DUE TO THE BUSY AIRSPACE, I WAS TRYING TO GET THE ATIS AT SNA WHILE ALSO LISTENING TO LGB TWR. I HEARD TWR ISSUE A TA BUT WAS NOT SURE IF IT WAS FOR ME. I TURNED OFF #2 TO LISTEN FOR REISSUANCE OF TFC, MEANWHILE TREATING THE ADVISORY I HEARD AS IF IT WERE FOR ME. THE TA I HEARD WAS '...TFC 1 O'CLOCK, 1 MI SWBOUND, AN SMA.' WELL, SINCE I WAS S AND I FELT THIS WAS NOT FOR ME AS IT WOULD BE TO MY R AND GOING AWAY FROM ME. I SCANNED AND SAW NOTHING. I THEN SCANNED MY INST PANEL. SUDDENLY, I SAW THE SMA FILL ALL THE WINDOWS ON THE L SIDE OF THE ACFT, HE WAS CLBING AND TURNING TO THE L APPROX 20 DEGS OF BANK. I BANKED HARD R, HARD R RUDDER AND PULLED BACK HARD. I CLOSED MY EYES BECAUSE I WAS SURE WE WERE GOING TO HIT BUT WE DIDN'T. I CALLED LGB TO ASK IF THE SMA TFC CALL HAD BEEN FOR MY ACFT, THEY SAID YES. I TOLD HIM WE ALMOST HIT AND THAT I WOULD BE FILING AN NMAC. I CALLED LGB TWR SUPVR AND HE SAID SOMEONE ON THE GND AT THE BEACH HAD CALLED TO ADVISE THAT 2 ACFT NEARLY COLLIDED AT THE SHORELINE AT THE TIME OF MY OCCURRENCE. HE SEEMED TO FEEL THAT TFC WAS ISSUED AND THAT WAS THAT. I HAVE FLOWN IN THE LOS ANGELES AREA FOR 17 YRS. I HAVE BEEN A CTLR IN THE LOS ANGELES AREA FOR 14 HRS. THIS IS ONE BUSY PLACE! YOU HAVE TO BE AHEAD TO PROVIDE THE CTLRS WITH STUFF THEY NEED TO KNOW YOU KNOW. THERE IS NO SUBSTITUTE FOR A CONSTANT SCAN. I DID NOT ASK IF THE TFC CALL WAS FOR ME OR NOT, AS I FELT THAT WHEN I DID NOT ACKNOWLEDGE (IF IT WAS FOR ME) IT WOULD BE REISSUED. I FEEL THERE IS A SYS-WIDE PROB OF CTLRS NOT LISTENING TO PLT READBACKS OR ACKNOWLEDGEMENTS. THE TFC CALL WAS A GOOD ONE, JUST WISH I WOULD HAVE KNOWN FROM THE GITGO, THAT IT WAS FOR ME.

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