Narrative:

On VFR flight plan from a hospital to a university, I passed within a mile or two of the key hole extension on the north side of ZZZ. I was not, by my dead reckoning, in their class D airspace. I believe I was at least 1 mi north. But I thought I was close enough that I had better be safe than sorry, and send this in. I was worried that this being a military base, they might get a little excited about aircraft they are not talking to getting close to the class D airspace. There were no other incidents.

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Original NASA ASRS Text

Title: SE355 HELI EMS PLT WAS, PERHAPS, TOO CLOSE TO A MIL FACILITY AIRSPACE AND DECIDED TO FILE A RPT OF A POSSIBLE AIRSPACE VIOLATION.

Narrative: ON VFR FLT PLAN FROM A HOSPITAL TO A UNIVERSITY, I PASSED WITHIN A MILE OR TWO OF THE KEY HOLE EXTENSION ON THE N SIDE OF ZZZ. I WAS NOT, BY MY DEAD RECKONING, IN THEIR CLASS D AIRSPACE. I BELIEVE I WAS AT LEAST 1 MI N. BUT I THOUGHT I WAS CLOSE ENOUGH THAT I HAD BETTER BE SAFE THAN SORRY, AND SEND THIS IN. I WAS WORRIED THAT THIS BEING A MIL BASE, THEY MIGHT GET A LITTLE EXCITED ABOUT ACFT THEY ARE NOT TALKING TO GETTING CLOSE TO THE CLASS D AIRSPACE. THERE WERE NO OTHER INCIDENTS.

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.