Narrative:

I was flying over needham (vpned) at 2;800 under the class B airspace in boston. After a bit of sightseeing it was time to return home. It was hazy and the sun was going down. I called boston approach for flight following and proceeded southwest. I decided to climb to 3;500 as the floor of the bravo in this area was at 4;000. My route took me a very very small amount into the corner of the bravo where the floor is 3;000. I noticed this and immediately turned away from the bravo and exited. I then proceeded direct and landed. The controller did not mention anything and I may not have even touched bravo airspace. I had a laptop running efb software as well as my GPS and was spending time scrolling the map around to find the floor of the airspace all the while I was flying into it (potentially). Working with the technology was a factor. I was also tired from the previous night and the day of flying. Rather than impromptu flying; I am going to plan future flights better to know exactly where I am going rather than rely on technology with user interfaces which require lots of time to manipulate while flying.

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Original NASA ASRS Text

Title: PA28 pilot believes he may have entered BOS Class B airspace while attempting to navigate with a laptop-based EFB with GPS input.

Narrative: I was flying over Needham (VPNED) at 2;800 under the Class B airspace in Boston. After a bit of sightseeing it was time to return home. It was hazy and the sun was going down. I called Boston Approach for flight following and proceeded southwest. I decided to climb to 3;500 as the floor of the Bravo in this area was at 4;000. My route took me a very very small amount into the corner of the Bravo where the floor is 3;000. I noticed this and immediately turned away from the Bravo and exited. I then proceeded direct and landed. The Controller did not mention anything and I may not have even touched Bravo airspace. I had a laptop running EFB software as well as my GPS and was spending time scrolling the map around to find the floor of the airspace all the while I was flying into it (potentially). Working with the technology was a factor. I was also tired from the previous night and the day of flying. Rather than impromptu flying; I am going to plan future flights better to know exactly where I am going rather than rely on technology with user interfaces which require lots of time to manipulate while flying.

Data retrieved from NASA's ASRS site as of April 2012 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.