Narrative:

We were at decatur, il, preparing to depart for mdw about AB30 am. The control tower was closed and I was flying with a guy who was new to the aircraft and was going to fly the empty leg from the right seat. We boarded the aircraft together. I closed the door, started the engines and as we taxied out I asked my partner to call stl radio and pick up our IFR clearance. He informed me that he had already received the clearance at an earlier time. This was unusual as they normally won't give it until you're ready to start engines or are taxiing. As we taxied out, my mind was on the non standard briefing for the aircraft being piloted from the right seat. As we were nearing the runway an aircraft called on CTAF and said as soon as the falcon takes off we can come on in and land. I felt we should get into the air as soon as possible so the inbound flight could land. We took off on runway 24 and my partner made a right turn to the north towards our first fix. ZAU sounded surprised that we had made a right turn. It then occurred to me that I had not been briefed on the clearance. Also we should have turned left out of the traffic pattern. It is important to discuss the clearance and the best way to exit the pattern before takeoff. Also my partner should not have picked up the IFR clearance so soon. The other plane could have come on in.

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Original NASA ASRS Text

Title: HEADING TRACK DEV. PIC WAS NOT AWARE OF WHAT FO WAS GOING TO DO WITH RESPECT TO DEP CLRNC PROC.

Narrative: WE WERE AT DECATUR, IL, PREPARING TO DEPART FOR MDW ABOUT AB30 AM. THE CTL TWR WAS CLOSED AND I WAS FLYING WITH A GUY WHO WAS NEW TO THE ACFT AND WAS GOING TO FLY THE EMPTY LEG FROM THE R SEAT. WE BOARDED THE ACFT TOGETHER. I CLOSED THE DOOR, STARTED THE ENGS AND AS WE TAXIED OUT I ASKED MY PARTNER TO CALL STL RADIO AND PICK UP OUR IFR CLRNC. HE INFORMED ME THAT HE HAD ALREADY RECEIVED THE CLRNC AT AN EARLIER TIME. THIS WAS UNUSUAL AS THEY NORMALLY WON'T GIVE IT UNTIL YOU'RE READY TO START ENGS OR ARE TAXIING. AS WE TAXIED OUT, MY MIND WAS ON THE NON STANDARD BRIEFING FOR THE ACFT BEING PILOTED FROM THE R SEAT. AS WE WERE NEARING THE RWY AN ACFT CALLED ON CTAF AND SAID AS SOON AS THE FALCON TAKES OFF WE CAN COME ON IN AND LAND. I FELT WE SHOULD GET INTO THE AIR AS SOON AS POSSIBLE SO THE INBOUND FLT COULD LAND. WE TOOK OFF ON RWY 24 AND MY PARTNER MADE A R TURN TO THE N TOWARDS OUR FIRST FIX. ZAU SOUNDED SURPRISED THAT WE HAD MADE A R TURN. IT THEN OCCURRED TO ME THAT I HAD NOT BEEN BRIEFED ON THE CLRNC. ALSO WE SHOULD HAVE TURNED L OUT OF THE TFC PATTERN. IT IS IMPORTANT TO DISCUSS THE CLRNC AND THE BEST WAY TO EXIT THE PATTERN BEFORE TKOF. ALSO MY PARTNER SHOULD NOT HAVE PICKED UP THE IFR CLRNC SO SOON. THE OTHER PLANE COULD HAVE COME ON IN.

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.