Narrative:

I'm not sure how we 'violated dulles airspace' if on the ground at fdk we were told our clearance was cleared into controled airspace then direct westminster (climb and maintain 40...). I asked the PNF to query the controller one more time to verify we were reading back the clearance correctly, he stated 'correct.' could he possibly have not heard us clearly? Departed fdk approximately XA05Z off runway 23. Climbed to 400 ft AGL before making left turn for westminster (EMI). Our clearance was cleared into controled airspace, then direct westminster. (The PNF, first officer, verified on the ground the clearance stated above while holding in position. The controller verified readback correct.) as we were in the left turn, about 20 degree bank, the supervisor called us and asked 'what is controled airspace to you?' the PNF replied 'sir I do not understand your question.' he then stated 'it usually doesn't take a learjet 5 mi to make a turnout, you just violated dulles airspace.' we stated our apology before being handed off. My climb out was normal (8-9 degree pitch) for passenger in the back as well as 15-20 degree bank, and only after accelerating through 400 ft AGL. I felt this is safest way maneuvering aircraft (transitioning).

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Original NASA ASRS Text

Title: CAPT OF A LEARJET, LR31, ENTERED CLASS B AIRSPACE WHEN CLBING OUT ON IFR CLRNC FROM AN ARPT 10 MI FROM THE AIRSPACE BOUNDARY.

Narrative: I'M NOT SURE HOW WE 'VIOLATED DULLES AIRSPACE' IF ON THE GND AT FDK WE WERE TOLD OUR CLRNC WAS CLRED INTO CTLED AIRSPACE THEN DIRECT WESTMINSTER (CLB AND MAINTAIN 40...). I ASKED THE PNF TO QUERY THE CTLR ONE MORE TIME TO VERIFY WE WERE READING BACK THE CLRNC CORRECTLY, HE STATED 'CORRECT.' COULD HE POSSIBLY HAVE NOT HEARD US CLRLY? DEPARTED FDK APPROX XA05Z OFF RWY 23. CLBED TO 400 FT AGL BEFORE MAKING L TURN FOR WESTMINSTER (EMI). OUR CLRNC WAS CLRED INTO CTLED AIRSPACE, THEN DIRECT WESTMINSTER. (THE PNF, FO, VERIFIED ON THE GND THE CLRNC STATED ABOVE WHILE HOLDING IN POS. THE CTLR VERIFIED READBACK CORRECT.) AS WE WERE IN THE L TURN, ABOUT 20 DEG BANK, THE SUPVR CALLED US AND ASKED 'WHAT IS CTLED AIRSPACE TO YOU?' THE PNF REPLIED 'SIR I DO NOT UNDERSTAND YOUR QUESTION.' HE THEN STATED 'IT USUALLY DOESN'T TAKE A LEARJET 5 MI TO MAKE A TURNOUT, YOU JUST VIOLATED DULLES AIRSPACE.' WE STATED OUR APOLOGY BEFORE BEING HANDED OFF. MY CLBOUT WAS NORMAL (8-9 DEG PITCH) FOR PAX IN THE BACK AS WELL AS 15-20 DEG BANK, AND ONLY AFTER ACCELERATING THROUGH 400 FT AGL. I FELT THIS IS SAFEST WAY MANEUVERING ACFT (TRANSITIONING).

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.