Narrative:

I flew up port royal sound to the coast, passing within 5 mi east of hilton head, sc (49J), shown on the chart as uncontrolled. I was monitoring 49J unicom and hearing traffic reports, though not reporting myself. The time was slightly before XX00 local. I later decided to land at 49J, which I had not originally planned. I consulted a current sectional and airport guide for pertinent information. I called unicom for an advisory. Received a reply about 4 mi out telling me a control tower was in effect. I contacted tower and received landing clearance. Local time was approximately XX10. After landing, I saw signs posted at the FBO stating a control tower would be in effect from XX00 10/sun/89 to 10/sun/89. I did not check with an FSS before I left 73J, since I was staying local and did not originally plan to go into 49J. Any problem could have been avoided had I done this.

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Original NASA ASRS Text

Title: PLT OF SMA INADVERTENTLY ENTERED HILTON HEAD ATA UNAWARE A TWR WAS IN OPERATION.

Narrative: I FLEW UP PORT ROYAL SOUND TO THE COAST, PASSING WITHIN 5 MI E OF HILTON HEAD, SC (49J), SHOWN ON THE CHART AS UNCONTROLLED. I WAS MONITORING 49J UNICOM AND HEARING TFC RPTS, THOUGH NOT RPTING MYSELF. THE TIME WAS SLIGHTLY BEFORE XX00 LCL. I LATER DECIDED TO LAND AT 49J, WHICH I HAD NOT ORIGINALLY PLANNED. I CONSULTED A CURRENT SECTIONAL AND ARPT GUIDE FOR PERTINENT INFO. I CALLED UNICOM FOR AN ADVISORY. RECEIVED A REPLY ABOUT 4 MI OUT TELLING ME A CTL TWR WAS IN EFFECT. I CONTACTED TWR AND RECEIVED LNDG CLRNC. LCL TIME WAS APPROX XX10. AFTER LNDG, I SAW SIGNS POSTED AT THE FBO STATING A CTL TWR WOULD BE IN EFFECT FROM XX00 10/SUN/89 TO 10/SUN/89. I DID NOT CHK WITH AN FSS BEFORE I LEFT 73J, SINCE I WAS STAYING LCL AND DID NOT ORIGINALLY PLAN TO GO INTO 49J. ANY PROB COULD HAVE BEEN AVOIDED HAD I DONE THIS.

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