Narrative:

On the morning of may/fri/03, we were departing from martin state airport (mtn) at XA41 local. Mtn tower issued us an IFR clearance to vrb. In the clearance we were instructed to climb to 2000 ft and turn left to 190 degrees. Takeoff was on runway 33. WX was IFR. Both my copilot and I wrote down our clearance and reviewed it prior to takeoff. When cleared for takeoff, we departed normally, cleared up the aircraft and were climbing about 1500-2000 FPM, at 200 KTS. As soon as the aircraft had its gear and flaps up (about 600 ft), I began a left turn from 330 degrees turning to 190 degrees. We were IMC. Tower told us to contact departure. We were still climbing at about 1500 ft, when we contacted departure. The controller was told we were with him off mtn climbing to 2000 ft. In a panic type voice he instructed us to climb immediately to 3000 ft and why weren't we on a 190 degree heading yet. He told us to turn further to 150 degrees and that at 2000 ft we were below the MDA. We did as he instructed. He also said we were 5 mi from the airport and this was a major deviation. We flew as cleared, we didn't get any GPWS warnings and I can't believe we were 5 mi from the airport when this occurred. I don't know who got communications wrong, but obviously departure didn't expect us where we were.

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Original NASA ASRS Text

Title: BE400 DEP FROM MTN CAUSES ATC CONCERN BECAUSE OF CLB PROFILE AND TURN RATE.

Narrative: ON THE MORNING OF MAY/FRI/03, WE WERE DEPARTING FROM MARTIN STATE ARPT (MTN) AT XA41 LCL. MTN TWR ISSUED US AN IFR CLRNC TO VRB. IN THE CLRNC WE WERE INSTRUCTED TO CLB TO 2000 FT AND TURN L TO 190 DEGS. TKOF WAS ON RWY 33. WX WAS IFR. BOTH MY COPLT AND I WROTE DOWN OUR CLRNC AND REVIEWED IT PRIOR TO TKOF. WHEN CLRED FOR TKOF, WE DEPARTED NORMALLY, CLRED UP THE ACFT AND WERE CLBING ABOUT 1500-2000 FPM, AT 200 KTS. AS SOON AS THE ACFT HAD ITS GEAR AND FLAPS UP (ABOUT 600 FT), I BEGAN A L TURN FROM 330 DEGS TURNING TO 190 DEGS. WE WERE IMC. TWR TOLD US TO CONTACT DEP. WE WERE STILL CLBING AT ABOUT 1500 FT, WHEN WE CONTACTED DEP. THE CTLR WAS TOLD WE WERE WITH HIM OFF MTN CLBING TO 2000 FT. IN A PANIC TYPE VOICE HE INSTRUCTED US TO CLB IMMEDIATELY TO 3000 FT AND WHY WEREN'T WE ON A 190 DEG HDG YET. HE TOLD US TO TURN FURTHER TO 150 DEGS AND THAT AT 2000 FT WE WERE BELOW THE MDA. WE DID AS HE INSTRUCTED. HE ALSO SAID WE WERE 5 MI FROM THE ARPT AND THIS WAS A MAJOR DEV. WE FLEW AS CLRED, WE DIDN'T GET ANY GPWS WARNINGS AND I CAN'T BELIEVE WE WERE 5 MI FROM THE ARPT WHEN THIS OCCURRED. I DON'T KNOW WHO GOT COMS WRONG, BUT OBVIOUSLY DEP DIDN'T EXPECT US WHERE WE WERE.

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.