EMS ROTARY WINGED TFC IN AN UNAUTH PENETRATION OF AIRSPACE; PROX OF CLASS D AIRSPACE.

Narrative

ZZZ'S TWR BEGAN OP (OPENED) ON 03/XX/94. AREA HOSPITALS ARE REGULAR USERS OF OUR HELI PROGRAM IN NEARBY CITY. I MADE ONLY ONE FLT THROUGH THE AREA A WK AFTER IT OPENED AND HAD REMEMBERED TO USE THE NEW TWR FREQ. ON APR/XX/94; OUT OF HABIT I CALLED ON UNICOM CTAF XXX.X. THE TWR MONITORS THIS FREQ; AND TOLD ME TO CONTACT THEM ON ZZZ.Z. I ENTERED THE FREQ IN THE #1 COM STANDBY WINDOW AND SWITCHED. HOWEVER I DIDN'T SWITCH THE COM SELECTOR SWITCH FROM #2 COM; THE RADIO TUNED TO XXX.X. I THEN CONTACTED THE TWR AGAIN (ON XXX.X) AND THE TWR INFORMED ME THEY WERE MONITORING XXX.X FOR SAFETY REASONS (FOR PEOPLE LIKE ME WHO FORGOT ABOUT THE TWR). I THOUGHT I HAD SWITCHED TO THE CORRECT FREQ AND ACKNOWLEDGED STILL THINKING I WAS RECEIVING AND XMITTING ON TWR. NO FURTHER COM UNTIL I WAS LEAVING THE ATA TO THE S. TWR AGAIN CONTACTED ME TO INFORM ME THEY HAD MADE TFC ADVISORIES TO ME ON TWR FREQ WHICH I HADN'T ACKNOWLEDGED. I GLANCED AT THE ICS CTL PANEL AND REALIZED WHAT HAD HAPPENED. I TOLD TWR AND PROCEEDED TO MY DEST HOSPITAL WITHOUT FURTHER INCIDENT. BEFORE MY FLT; I SHOULD FAMILIARIZED MYSELF MORE COMPLETELY WITH THE FREQS ALONG MY RTE BECAUSE I HAD BEEN THERE SO MANY TIMES; COMPLACENCY GOT ME; FORTUNATELY WITHOUT INCIDENT.