Narrative:

Flight was from bedford, ma to provincetown, ma over norwood airport and weymouth naval station at 3000 ft, just under boston class B airspace (70/40 ring). Normally this would be just above weymouth class D airspace, but the airport was notamed for an airshow extending class D airspace to 6000 ft. The aircraft penetrated class D airspace. The pilot had obtained a preflight briefing by duat but the NOTAM for the airshow was not noticed. I received a call after landing and discussed the violation with boston ATC. The violation occurred due to inadequate preflight briefing. It could also have been avoided by filing IFR, requesting flight following, or by requesting clearance through class D airspace even though the pilot was at an altitude where he did not believe it necessary. A contributing factor to the inadequate briefing was the extreme clutter of NOTAMS in the duat most of them covering areas far removed from the area at intended flight. It would also be helpful to further notify itinerant traffic by posting announcements in other local airports.

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Original NASA ASRS Text

Title: ERRONEOUS PENETRATION OF CLASS D AIRSPACE.

Narrative: FLT WAS FROM BEDFORD, MA TO PROVINCETOWN, MA OVER NORWOOD ARPT AND WEYMOUTH NAVAL STATION AT 3000 FT, JUST UNDER BOSTON CLASS B AIRSPACE (70/40 RING). NORMALLY THIS WOULD BE JUST ABOVE WEYMOUTH CLASS D AIRSPACE, BUT THE ARPT WAS NOTAMED FOR AN AIRSHOW EXTENDING CLASS D AIRSPACE TO 6000 FT. THE ACFT PENETRATED CLASS D AIRSPACE. THE PLT HAD OBTAINED A PREFLT BRIEFING BY DUAT BUT THE NOTAM FOR THE AIRSHOW WAS NOT NOTICED. I RECEIVED A CALL AFTER LNDG AND DISCUSSED THE VIOLATION WITH BOSTON ATC. THE VIOLATION OCCURRED DUE TO INADEQUATE PREFLT BRIEFING. IT COULD ALSO HAVE BEEN AVOIDED BY FILING IFR, REQUESTING FLT FOLLOWING, OR BY REQUESTING CLRNC THROUGH CLASS D AIRSPACE EVEN THOUGH THE PLT WAS AT AN ALT WHERE HE DID NOT BELIEVE IT NECESSARY. A CONTRIBUTING FACTOR TO THE INADEQUATE BRIEFING WAS THE EXTREME CLUTTER OF NOTAMS IN THE DUAT MOST OF THEM COVERING AREAS FAR REMOVED FROM THE AREA AT INTENDED FLT. IT WOULD ALSO BE HELPFUL TO FURTHER NOTIFY ITINERANT TFC BY POSTING ANNOUNCEMENTS IN OTHER LCL ARPTS.

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.