C172 PLT ENTERS EXPANDED P40.

Narrative

RECEIVED LETTER ON MAY/FRI/05 INQUIRING ABOUT AN INCURSION INTO THE EXPANDED P40 AIRSPACE ON APR/SAT/05. I WAS NEAR P40 ON THAT DAY ENRTE TO GETTYSBURG (W05) FROM LEESBURG (JYO). I HAD FILED AN ADIZ FLT PLAN FOR THE FIRST LEG OF THE TRIP AND WAS AWARE OF THE P40 EXPANSION AND TOOK GREAT CARE TO STAY E OF THE AREA BY FLYING E AND NE OF FDK UNTIL WELL CLR AND THEN ENGAGED AUTOPLT COUPLED TO GPS ON A COURSE TO W05. THIS COURSE KEPT ME E OF MULRR INTXN AND; THEREFORE; CLR OF THE EXPANDED P40 AREA. WHEN AN F16 PASSED BY; I IMMEDIATELY TUNED TO 121.50 AND TOLD HIM I WAS AWARE OF THE EXPANDED P40; WAS NOT IN P40; AND WAS NOT GOING TO ENTER IT. THE RESPONSE WAS AN AUTOMATED FEMALE VOICE WARNING ME THAT MY ACFT WAS 11.5 MI TO THE E OF P40 -- DOESN'T THAT PUT ME CLR OF THE AREA? I CONTINUED ON TO GETTYSBURG WITHOUT FURTHER INCIDENT OR CONTACT FROM ANYONE. SINCE THIS TIME ALL FLTS I TAKE N OF JYO GO OVER DMW TO STAY 20 MI AWAY FROM P40. THE LETTER FROM THE FAA IS A REAL SURPRISE; BUT I LOOK FORWARD TO HAVING A CHANCE TO EXPLAIN MY SIDE OF THE STORY. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: A REGULAR AND FREQUENT FLYER IN THE AREA; RPTR HAD A NEW SECTIONAL IN HIS POSSESSION; BUT FAILED TO SCRUTINIZE IT PRIOR TO FLT. HE LATER LEARNED TO HIS DISMAY THAT THE DEPICTION OF THE EXPANDED P40/R4009 HAD BEEN CHANGED TO A 10 MI RADIUS VICE THE 5 MI DEPICTED ON THE PREVIOUS EDITION.