Narrative:

After completing airwork to the east of fdk airport, the student and I proceeded to fdk VOR. Our plan was to go from the fdk VOR to hagerstown airport to practice approachs. Both the government and commercial chart approach plates show the fdk 340 degree radial passing outside prohibited airspace P40 and intersecting the hgr localizer at nolin intersection. The student and I tracked the fdk 340 degree radial to nolin and upon contacting hagerstown tower, was advised by them that ZDC requested we call them for violating P40. Needless to say, we were quite surprised since the student kept the course deviation indicator centered and based upon the approach plates which we were using to navigation from fdk VOR the hgr localizer, we should have remained clear of P40. A check of the last VOR accuracy check showed that there was zero error on the VOR airborne equipment. When we later called ZDC, they mentioned violations of P40 are a common occurrence. Perhaps one reason is the misleading approach plates. Recommend FAA review the government and commercial chart approach plates and encourage government and commercial chart company to change their format to more accurately reflect the true situation, ie, that the pdk 340 degree radial will take you through P40.

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Original NASA ASRS Text

Title: DURING INST TRAINING FLT, PROHIBITED AREA P40 WAS PENETRATED DUE TO FOLLOWING AN INTXN VOR RADIAL NOT INTENDED FOR INST FLT PLAN ROUTING.

Narrative: AFTER COMPLETING AIRWORK TO THE E OF FDK ARPT, THE STUDENT AND I PROCEEDED TO FDK VOR. OUR PLAN WAS TO GO FROM THE FDK VOR TO HAGERSTOWN ARPT TO PRACTICE APCHS. BOTH THE GOV AND COMMERCIAL CHART APCH PLATES SHOW THE FDK 340 DEG RADIAL PASSING OUTSIDE PROHIBITED AIRSPACE P40 AND INTERSECTING THE HGR LOC AT NOLIN INTXN. THE STUDENT AND I TRACKED THE FDK 340 DEG RADIAL TO NOLIN AND UPON CONTACTING HAGERSTOWN TWR, WAS ADVISED BY THEM THAT ZDC REQUESTED WE CALL THEM FOR VIOLATING P40. NEEDLESS TO SAY, WE WERE QUITE SURPRISED SINCE THE STUDENT KEPT THE COURSE DEV INDICATOR CTRED AND BASED UPON THE APCH PLATES WHICH WE WERE USING TO NAV FROM FDK VOR THE HGR LOC, WE SHOULD HAVE REMAINED CLR OF P40. A CHK OF THE LAST VOR ACCURACY CHK SHOWED THAT THERE WAS ZERO ERROR ON THE VOR AIRBORNE EQUIP. WHEN WE LATER CALLED ZDC, THEY MENTIONED VIOLATIONS OF P40 ARE A COMMON OCCURRENCE. PERHAPS ONE REASON IS THE MISLEADING APCH PLATES. RECOMMEND FAA REVIEW THE GOV AND COMMERCIAL CHART APCH PLATES AND ENCOURAGE GOV AND COMMERCIAL CHART COMPANY TO CHANGE THEIR FORMAT TO MORE ACCURATELY REFLECT THE TRUE SIT, IE, THAT THE PDK 340 DEG RADIAL WILL TAKE YOU THROUGH P40.

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.