Narrative:

I departed from N99 for erie, en route to oshkosh, in VFR conditions. WX was poor to the west, south, and east, but looked ok on our nwbound route. I chose a GPS course that passed well southwest of reading and northeast of lancaster. At a point south of reading we encountered lower clouds and rain showers directly ahead. WX appeared better to the right (north) so diverted that way trying to turn back west again at the first opportunity. Repeated this a couple of times, getting closer to reading. I was unsure of my distance from reading--could have obtained it from the GPS, but in the marginal conditions I had all my attention focused outside and did not want to take the time to look up the reading identifier and enter it as a waypoint. I believed we were still well clear of the reading air traffic area to the south, but monitored the tower frequency as a precaution. Presently I heard the tower calling 'aircraft to the southwest of the reading airport...' assumed they were referring to me and responded, requesting special VFR to land at reading. At their request I held to the southwest of the airport, set up the GPS and ILS, and shortly landed at reading on a special VFR basis without further incident. Found out after landing that prior to the first radio exchange, I had entered the reading air traffic area without clearance.

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Original NASA ASRS Text

Title: PLT OF AN SMA SEL ERRONEOUSLY PENETRATED AN ATA AIRSPACE WHILE ATTEMPTING TO STAY VFR.

Narrative: I DEPARTED FROM N99 FOR ERIE, ENRTE TO OSHKOSH, IN VFR CONDITIONS. WX WAS POOR TO THE W, S, AND E, BUT LOOKED OK ON OUR NWBOUND RTE. I CHOSE A GPS COURSE THAT PASSED WELL SW OF READING AND NE OF LANCASTER. AT A POINT S OF READING WE ENCOUNTERED LOWER CLOUDS AND RAIN SHOWERS DIRECTLY AHEAD. WX APPEARED BETTER TO THE R (N) SO DIVERTED THAT WAY TRYING TO TURN BACK W AGAIN AT THE FIRST OPPORTUNITY. REPEATED THIS A COUPLE OF TIMES, GETTING CLOSER TO READING. I WAS UNSURE OF MY DISTANCE FROM READING--COULD HAVE OBTAINED IT FROM THE GPS, BUT IN THE MARGINAL CONDITIONS I HAD ALL MY ATTN FOCUSED OUTSIDE AND DID NOT WANT TO TAKE THE TIME TO LOOK UP THE READING IDENTIFIER AND ENTER IT AS A WAYPOINT. I BELIEVED WE WERE STILL WELL CLR OF THE READING ATA TO THE S, BUT MONITORED THE TWR FREQ AS A PRECAUTION. PRESENTLY I HEARD THE TWR CALLING 'ACFT TO THE SW OF THE READING ARPT...' ASSUMED THEY WERE REFERRING TO ME AND RESPONDED, REQUESTING SPECIAL VFR TO LAND AT READING. AT THEIR REQUEST I HELD TO THE SW OF THE ARPT, SET UP THE GPS AND ILS, AND SHORTLY LANDED AT READING ON A SPECIAL VFR BASIS WITHOUT FURTHER INCIDENT. FOUND OUT AFTER LNDG THAT PRIOR TO THE FIRST RADIO EXCHANGE, I HAD ENTERED THE READING ATA WITHOUT CLRNC.

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.