Narrative:

After departing montgomery county airport, heading direct westminster VOR, I climbed to 5500 ft into the overlying class B airspace before contacting baltimore departure for flight following. This occurred because I was unfamiliar with the airspace and was using an old sectional that did not have the class B airspace over gai. I had current charts and plates in the airplane, however I was with a student pilot who had planned the routing on an old map and, without checking the date, I used that sectional to determine the airspace limits. Lessons learned: do not keep old charts even for flight planning and, at the very least do not have them available in the airplane during the flight. The problem with old charts for planning is that you may or may not make note of an airspace situation based on old information and then not check the current situation. And, of course, do not trust others to have current materials.

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Original NASA ASRS Text

Title: FLT INSTRUCTOR WITH STUDENT PLT ENTERS CLASS B AIRSPACE WITHOUT CLRNC DUE TO USING OUTDATED CHARTS. ERROR ADMITTED.

Narrative: AFTER DEPARTING MONTGOMERY COUNTY ARPT, HEADING DIRECT WESTMINSTER VOR, I CLBED TO 5500 FT INTO THE OVERLYING CLASS B AIRSPACE BEFORE CONTACTING BALTIMORE DEP FOR FLT FOLLOWING. THIS OCCURRED BECAUSE I WAS UNFAMILIAR WITH THE AIRSPACE AND WAS USING AN OLD SECTIONAL THAT DID NOT HAVE THE CLASS B AIRSPACE OVER GAI. I HAD CURRENT CHARTS AND PLATES IN THE AIRPLANE, HOWEVER I WAS WITH A STUDENT PLT WHO HAD PLANNED THE ROUTING ON AN OLD MAP AND, WITHOUT CHKING THE DATE, I USED THAT SECTIONAL TO DETERMINE THE AIRSPACE LIMITS. LESSONS LEARNED: DO NOT KEEP OLD CHARTS EVEN FOR FLT PLANNING AND, AT THE VERY LEAST DO NOT HAVE THEM AVAILABLE IN THE AIRPLANE DURING THE FLT. THE PROB WITH OLD CHARTS FOR PLANNING IS THAT YOU MAY OR MAY NOT MAKE NOTE OF AN AIRSPACE SIT BASED ON OLD INFO AND THEN NOT CHK THE CURRENT SIT. AND, OF COURSE, DO NOT TRUST OTHERS TO HAVE CURRENT MATERIALS.

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.