PLT OF C182 ENTERS AND OPERATES WITHIN THE DC ADIZ WITHOUT AUTH.

Narrative

I FLEW A C182T FROM CHESTERFIELD; VA; ON BUSINESS. THE TRIP WAS TO LOCATIONS IN PA; WV; AND VA. AFTER A LEG FROM HYO; VA; TO RMN ARPT; I WAS ASKED TO CONTACT THE WASHINGTON TRACON. DURING THIS CALL; I WAS ASKED ABOUT MY LAST ARPT OF DEP AND NOTIFIED I MAY HAVE VIOLATED THE AIRSPACE AROUND WASHINGTON; DC. I EXPLAINED THAT I DIDN'T BELIEVE I HAD VIOLATED ANY AIRSPACE AND IMMEDIATELY REVIEWED THE FLT PLANNING BRIEFING NOTES I ACCUMULATED PRIOR TO THIS TRIP. MY SCAN OF THIS DOCUMENT WHICH IS ESTIMATED TO HAVE BEEN OVER 20 PAGES; RECEIVED FROM THE COMPUTER BASED BRIEFING; INDICATED TO ME THAT I HAD NOT VIOLATED ANY ATC OR FAR REQUIREMENTS. MY THOUGHTS AT THAT TIME WERE THAT THE SEVERE RESTRS FOR ATC CTL APPLIED TO REAGAN NATION; WASHINGTON DULLES; AND A FEW ARPTS IN MARYLAND. A CAREFUL STUDY OF THESE NOTES INDICATE TO ME NOW THAT I WAS WRONG. IN SUMMARY; I HAVE SIGNIFICANT AVIATION EXPERIENCE AND AN ACFT THAT IS EXTREMELY WELL EQUIPPED. I THOUGHT I HAD REVIEWED ALL AVAILABLE INFO FOR THE FLTS I CONDUCTED. I CONDUCTED THE FLTS SAFELY IN AN EFFORT TO COMPLY WITH MY UNDERSTANDING OF THE FLT RESTRS IMPLIED BY THE PUBLISHED INFO. REGARDLESS; I EVIDENTLY MADE A MISTAKE BY NOT FILING AND FLYING A VFR OR IFR FLT PLAN.