A C182 PLT COPIED AND READ BACK AN INCOMPLETE IFR CLRNC OFF VNY. AFTER TKOF; PLT FLEW INCORRECT HDG; AND CONFLICTED WITH A CRJ ACR.

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I REQUESTED A TWR ENRTE CLRNC FROM VNY TO LGB. THE CLRNC (WHICH I BELIEVED THAT) I WAS GIVEN BY VNY CLRNC DELIVERY WAS 'V186 V394 SLI' (WHICH IS ALSO THE PUBLISHED SOCAL TEC RTE 'BURL1'). AFTER TKOF; AND APPROX 1/4 MI BEYOND THE END OF RWY 16R; THE TWR XMITTED 'SKYLANE; L TURN APPROVED.' AT THIS POINT I TURNED TO A HDG OF 070 DEGS TO INTERCEPT V186 (VNY 095 DEG RADIAL). AT APPROX 3 MI SE OF VNY; THE SOCAL SECTOR CTLR RADIOED ASKING 'SKYLANE; WHAT ARE YOU DOING? WHY ARE YOU OVER THERE?' I STATED THAT I WAS INTERCEPTING V186 AS PER MY CLRNC. HE THEN RADIOED STATING 'YOU AREN'T SUPPOSED TO BE OVER THERE. TURN R. YOU'RE SUPPOSED TO BE ON A 110 DEG HDG. YOU GAVE THAT REGIONAL JET A SCARE.' A FEW MINS LATER; I WAS GIVEN A PHONE NUMBER TO CALL; WHICH I DID UPON LNDG AT LGB. WHEN I CALLED THE INDICATED NUMBER AND SPOKE WITH THE SOCAL OPS MGR; HE INDICATED THAT A LOSS OF SEPARATION HAD OCCURRED BTWN MY ACFT AND A REGIONAL JET ON APCH TO BUR; AND THAT AN INVESTIGATION HAD BEEN COMMENCED. HE SAID THAT HE HAD SPOKEN WITH THE VAN NUYS TWR SUPVR; AND INDICATED THAT AS FAR AS SOCAL WAS CONCERNED; IT APPEARED AT THIS POINT THAT THERE WAS 'A PROB WITH VAN NUYS CLRNC DELIVERY.' HE ASKED ME TO CALL AND SPEAK WITH THE VNY TWR SUPVR; AND ANSWER ANY QUESTIONS HE HAD ABOUT THE INCIDENT. WHEN I SPOKE WITH THE VNY TWR MGR; HE JUST ASKED FOR A CALL BACK NUMBER IN CASE HE HAD ANY QUESTIONS. I COMPLIED; BUT THEN ASKED HIM WHAT HE KNEW SO FAR ABOUT THE INCIDENT. HE SAID THAT HE HAD ALREADY PULLED AND LISTENED TO THE ATC TAPE; AND THAT THE CLRNC DELIVERY CTLR HAD GIVEN ME THE CLRNC: 'GLENDALE 8 V186 V394 SLI;' BUT THAT THE PLT READBACK ON TAPE WAS: 'V186 V394 SLI.' THE CTLR INDICATED 'READBACK CORRECT' IN RESPONSE TO THE INCOMPLETE READBACK. THE GLENDALE 8 DEP PROC (GLEN8) WOULD HAVE HAD MY ACFT ON A 110 DEG HDG UNTIL VECTORED TO INTERCEPT V186; AND WOULD HAVE AVOIDED THE LOSS OF SEPARATION. PROBS: 1) THE CLRNC DELIVERY CTLR INCORRECTLY CONFIRMED MY INACCURATE READBACK OF THE CLRNC GIVEN. 2) RELATED TO PROBLEM #1. THE CLRNC DELIVERY CTLR SEEMED DISTR -- POSSIBLY DOING MULTIPLE TASKS IN THE CAB IN ADDITION TO WORKING THE RADIO. MY INITIAL CALL-UP TO CLRNC INCLUDED MY POS AND THE ATIS CODE. THE CTLR SUBSEQUENTLY ASKED WHERE I WAS; AND DID I HAVE THE ATIS. THIS IS NORMALLY NOT A PROB; BUT THESE CONDITIONS ARE CONDUCIVE TO MISCOM. 3) THE CLRNC WAS ISSUED RAPID-FIRE. ALTHOUGH I BELIEVED THAT I HAD HEARD IT COMPLETELY; I ACTUALLY MISSED A CRITICAL PIECE OF DATA; IE; THE 'GLENDALE 8' PART OF THE CLRNC. 4) WHEN SOCAL DETERMINED THAT MY ACFT WAS NOT WHERE IT WAS SUPPOSED TO BE; THEY SHOULD HAVE IMMEDIATELY ISSUED A VECTOR; INSTEAD OF ASKING: 'WHAT ARE YOU DOING; WHY ARE YOU OVER THERE?' ONCE THE VECTOR WAS ISSUED AND THE IMMEDIATE PROB ADDRESSED; THEY COULD BE FREE TO MAKE WHATEVER ON-THE-AIR COMMENTS THEY CHOSE TO MAKE.