Narrative:

I was approaching lgb from the northwest. Controller instructed me to 'make right traffic runway 25R, report established on the 45.' I completed with instructions. On the 45 degree, tower indicated 'proceed inbound, your traffic is a king air departing runway 30, will be right downwind departure.' I indicated 'looking for traffic.' controller advised the king air of my position. He also reported 'looking for traffic, can I start my right turn now?' controller replied 'affirmative, use caution.' the king air then turned. My first sighting of the king air was at that time, it was directly in my path climbing and turning right. I executed a hard right turn to avoid hitting the king air. Approximately distance 200-300 ft. I don't think the king air pilot ever saw my airplane. In my opinion, this occurrence could have been avoided if the controller had instructed the king air to continue upwind until it was above my altitude and clear of my position. I had a bad feeling as soon as the controller told me traffic will be a king air departing runway 30R downwind. I knew that path would be across my path if allowed to continue. I could have avoided the situation by continuing east making a base entry rather than a standard entry. I do feel the controller was in error allowing the king air to turn without either of the 2 aircraft reporting the other in sight. As further corrective action I am calling the air traffic manager of lgb tower to report the situation.

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Original NASA ASRS Text

Title: A DEPARTING KING AIR HAS AN NMAC WITH INBOUND TFC ON THE 45 DEG ENTRY FOR RWY 25R AT LGB, CA.

Narrative: I WAS APCHING LGB FROM THE NW. CTLR INSTRUCTED ME TO 'MAKE R TFC RWY 25R, RPT ESTABLISHED ON THE 45.' I COMPLETED WITH INSTRUCTIONS. ON THE 45 DEG, TWR INDICATED 'PROCEED INBOUND, YOUR TFC IS A KING AIR DEPARTING RWY 30, WILL BE R DOWNWIND DEP.' I INDICATED 'LOOKING FOR TFC.' CTLR ADVISED THE KING AIR OF MY POS. HE ALSO RPTED 'LOOKING FOR TFC, CAN I START MY R TURN NOW?' CTLR REPLIED 'AFFIRMATIVE, USE CAUTION.' THE KING AIR THEN TURNED. MY FIRST SIGHTING OF THE KING AIR WAS AT THAT TIME, IT WAS DIRECTLY IN MY PATH CLBING AND TURNING R. I EXECUTED A HARD R TURN TO AVOID HITTING THE KING AIR. APPROX DISTANCE 200-300 FT. I DON'T THINK THE KING AIR PLT EVER SAW MY AIRPLANE. IN MY OPINION, THIS OCCURRENCE COULD HAVE BEEN AVOIDED IF THE CTLR HAD INSTRUCTED THE KING AIR TO CONTINUE UPWIND UNTIL IT WAS ABOVE MY ALT AND CLR OF MY POS. I HAD A BAD FEELING AS SOON AS THE CTLR TOLD ME TFC WILL BE A KING AIR DEPARTING RWY 30R DOWNWIND. I KNEW THAT PATH WOULD BE ACROSS MY PATH IF ALLOWED TO CONTINUE. I COULD HAVE AVOIDED THE SIT BY CONTINUING E MAKING A BASE ENTRY RATHER THAN A STANDARD ENTRY. I DO FEEL THE CTLR WAS IN ERROR ALLOWING THE KING AIR TO TURN WITHOUT EITHER OF THE 2 ACFT RPTING THE OTHER IN SIGHT. AS FURTHER CORRECTIVE ACTION I AM CALLING THE AIR TFC MGR OF LGB TWR TO RPT THE SIT.

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.