HELI ATX PLT FAILED TO MAINTAIN VFR WHEN APCHING TO LAND UNDER AN SVFR CLRNC AT CTLED ARPT WITH DETERIORATING WX CONDITIONS. HE REVERSED HIS COURSE AND DEPARTED THE AREA VFR USING ROADS FOR PILOTAGE.

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FLT CONTINUED INTO DETERIORATING WX CONDITIONS BY PLT WITH A LOT OF WX TIME IN THE OFFSHORE OIL INDUSTRY BUT LITTLE TIME IN ATC AND WX CONDITIONS. PLT HAD ESTABLISHED COM WITH APPROX 30 MI OUT AND WAS CLRED SVFR TO DEST ARPT. WHEN HANDED OFF TO INTERVENING ARPT BY APCH; I CAN ONLY FEEL THAT DEST ARPT HAD NOT BEEN ADVISED OF MY INTENTIONS. DEST ARPT ASKED TWICE WHAT MY INTENTIONS WERE WHEN I CONTACTED THEM. EACH TIME I ASKED FOR AN SVFR ARR THE TWR OPERATOR ADVISED ME THE FIELD WAS IFR. NOTING THE DETERIORATING WX; I ADVISED TWR THAT I WAS REVERSING COURSE AND LEAVING THE AREA. TWR HANDED ME OFF TO APCH FOR EXITING THE CLASS B AIRSPACE. DURING THIS TIME; I HAD MONITORED; ON MY OTHER RADIO; AN ACFT ON INST APCH TO THE ARPT; NOT HAVING TIME TO TUNE AND TALK TO APCH; AS ONE RADIO WAS TUNED TO DEST ARPT AND THE OTHER TO THE INTERVENING ARPT. I INITIATED HOLDING OVER A MAJOR HWY INTXN. BY THE TIME I TUNED TO APCH THEY WERE ALREADY GIVING ME A HDG TO FLY TO AVOID THE ACFT ON APCH. AS I WAS ALREADY IN A TURN; I MAINTAINED IT TO THE HDG CALLED FOR BY APCH. I FEEL THERE WAS POOR COM BTWN APCH; INTERVENING TWR; AND DEST TWR. MY NOT BEING AS CURRENT ON ATC PROCS AS I COULD BE IS A CONTRIBUTING FACTOR.