Narrative:

We departed cos on the spring one departure. ATC gave us a heading of 120 degrees to intercept the publication 349 degree after airborne. Soon after receiving this clearance we requested a deviation right due to a thunderstorm buildup southeast of cos. During this deviation ATC said we were about to enter restr airspace and were we declaring an emergency. We had begun our turn direct to publication at approximately this time, so captain said no. The contributing factor to this problem was a thunderstorm that initially required only a small deviation, then forced us further west as the storm moved. Having just experienced a part of this cell on the ground at cos, we wanted to fully avoid the remaining cells. Supplemental information from acn 371444: as we were about to round the last cell and already in a shallow left turnback towards the publication 349 degree the controller came on the radio and issued an immediate left turn to 120 degrees. I replied that I wouldn't as that turn would have us fly directly through the thunderstorm. With that he asked me if I was declaring an emergency? I replied that 'no I wasn't,' almost simultaneously with his question we were around the cell and able to make a steep turn towards the publication 349 degree radial. I asked if there was a problem with the ft carson restr area, the only response I received was a frequency change to ZDV. A suggestion to possibly help would be to have the ft carson restr area go from hot to cold whenever there are thunderstorms on that side of the cos airport.

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Original NASA ASRS Text

Title: ACR MLG DEP COS HAS TO DEVIATE AROUND LCL TSTMS, PLACING ACFT IN PROX OF THE RESTR AREA TO THE SW. PIC SUGGESTS THAT DURING THESE TYPES OF OPS THAT THE FORT CARSON RESTR AREA GO TO A 'COLD' STATUS.

Narrative: WE DEPARTED COS ON THE SPRING ONE DEP. ATC GAVE US A HDG OF 120 DEGS TO INTERCEPT THE PUB 349 DEG AFTER AIRBORNE. SOON AFTER RECEIVING THIS CLRNC WE REQUESTED A DEV R DUE TO A TSTM BUILDUP SE OF COS. DURING THIS DEV ATC SAID WE WERE ABOUT TO ENTER RESTR AIRSPACE AND WERE WE DECLARING AN EMER. WE HAD BEGUN OUR TURN DIRECT TO PUB AT APPROX THIS TIME, SO CAPT SAID NO. THE CONTRIBUTING FACTOR TO THIS PROB WAS A TSTM THAT INITIALLY REQUIRED ONLY A SMALL DEV, THEN FORCED US FURTHER W AS THE STORM MOVED. HAVING JUST EXPERIENCED A PART OF THIS CELL ON THE GND AT COS, WE WANTED TO FULLY AVOID THE REMAINING CELLS. SUPPLEMENTAL INFO FROM ACN 371444: AS WE WERE ABOUT TO ROUND THE LAST CELL AND ALREADY IN A SHALLOW L TURNBACK TOWARDS THE PUB 349 DEG THE CTLR CAME ON THE RADIO AND ISSUED AN IMMEDIATE L TURN TO 120 DEGS. I REPLIED THAT I WOULDN'T AS THAT TURN WOULD HAVE US FLY DIRECTLY THROUGH THE TSTM. WITH THAT HE ASKED ME IF I WAS DECLARING AN EMER? I REPLIED THAT 'NO I WASN'T,' ALMOST SIMULTANEOUSLY WITH HIS QUESTION WE WERE AROUND THE CELL AND ABLE TO MAKE A STEEP TURN TOWARDS THE PUB 349 DEG RADIAL. I ASKED IF THERE WAS A PROB WITH THE FT CARSON RESTR AREA, THE ONLY RESPONSE I RECEIVED WAS A FREQ CHANGE TO ZDV. A SUGGESTION TO POSSIBLY HELP WOULD BE TO HAVE THE FT CARSON RESTR AREA GO FROM HOT TO COLD WHENEVER THERE ARE TSTMS ON THAT SIDE OF THE COS ARPT.

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.