Narrative:

I planned an instrument training flight with a student, from W48 (essey, md), to mrb (martinsburg, wv). The student filed an instrument flight plan and asked the briefer what frequency to pick up the IFR clearance on. The briefer told my student 119.0. We departed W48 with a XXXX squawk and contacted potomac approach around 800 ft AGL. After a min or two, potomac gave us our IFR clearance. We were then given an 800 number to call. I had wrongly assumed that, because W48 lies within mtn (martin state, baltimore, md) class D airspace, that we could depart W48 on a XXXX squawk and contact approach for our IFR clearance once airborne. At the time, it was not clear to me how to pick up an IFR clearance from W48 (other than on the ground), since the ADIZ was surrounding the baltimore and washington area. When the student asked the briefer for the frequency to pick up an IFR flight plan, the briefer said 119.0, but did not mention that you first have to at least get a squawk on the ground to enter the ADIZ, (which both the student and I should have realized). This further led to our confusion. According to my student (who got the briefing), the briefer did ask if he was familiar with the ADIZ, which he said he was. I was also led into believing that departing W48 on a XXXX squawk was ok, because many other pilots were doing it from W48, and my student had said he had done it before. I should have confirmed with FSS or approach how to properly depart W48 and not relied upon local pilots interpretation of the NOTAMS. I also should have gotten a briefing myself, instead of hearing it second hand from the student. In the future, I will make sure to read the NOTAM myself, and if it is not clear, I will get clarification from either FSS or ATC, not local pilots.

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Original NASA ASRS Text

Title: AFTER DEPARTING W48 WITH A STUDENT UTILIZING A LCL ARPT TFC PATTERN XPONDER SQUAWK, INSTRUCTOR IS ALERTED BY PCT OF IMPROPER DEP PROCS INTO THE DC ADIZ.

Narrative: I PLANNED AN INST TRAINING FLT WITH A STUDENT, FROM W48 (ESSEY, MD), TO MRB (MARTINSBURG, WV). THE STUDENT FILED AN INST FLT PLAN AND ASKED THE BRIEFER WHAT FREQ TO PICK UP THE IFR CLRNC ON. THE BRIEFER TOLD MY STUDENT 119.0. WE DEPARTED W48 WITH A XXXX SQUAWK AND CONTACTED POTOMAC APCH AROUND 800 FT AGL. AFTER A MIN OR TWO, POTOMAC GAVE US OUR IFR CLRNC. WE WERE THEN GIVEN AN 800 NUMBER TO CALL. I HAD WRONGLY ASSUMED THAT, BECAUSE W48 LIES WITHIN MTN (MARTIN STATE, BALTIMORE, MD) CLASS D AIRSPACE, THAT WE COULD DEPART W48 ON A XXXX SQUAWK AND CONTACT APCH FOR OUR IFR CLRNC ONCE AIRBORNE. AT THE TIME, IT WAS NOT CLR TO ME HOW TO PICK UP AN IFR CLRNC FROM W48 (OTHER THAN ON THE GND), SINCE THE ADIZ WAS SURROUNDING THE BALTIMORE AND WASHINGTON AREA. WHEN THE STUDENT ASKED THE BRIEFER FOR THE FREQ TO PICK UP AN IFR FLT PLAN, THE BRIEFER SAID 119.0, BUT DID NOT MENTION THAT YOU FIRST HAVE TO AT LEAST GET A SQUAWK ON THE GND TO ENTER THE ADIZ, (WHICH BOTH THE STUDENT AND I SHOULD HAVE REALIZED). THIS FURTHER LED TO OUR CONFUSION. ACCORDING TO MY STUDENT (WHO GOT THE BRIEFING), THE BRIEFER DID ASK IF HE WAS FAMILIAR WITH THE ADIZ, WHICH HE SAID HE WAS. I WAS ALSO LED INTO BELIEVING THAT DEPARTING W48 ON A XXXX SQUAWK WAS OK, BECAUSE MANY OTHER PLTS WERE DOING IT FROM W48, AND MY STUDENT HAD SAID HE HAD DONE IT BEFORE. I SHOULD HAVE CONFIRMED WITH FSS OR APCH HOW TO PROPERLY DEPART W48 AND NOT RELIED UPON LCL PLTS INTERP OF THE NOTAMS. I ALSO SHOULD HAVE GOTTEN A BRIEFING MYSELF, INSTEAD OF HEARING IT SECOND HAND FROM THE STUDENT. IN THE FUTURE, I WILL MAKE SURE TO READ THE NOTAM MYSELF, AND IF IT IS NOT CLR, I WILL GET CLARIFICATION FROM EITHER FSS OR ATC, NOT LCL PLTS.

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.