Narrative:

Left gate without IFR clearance. Just after takeoff and prior to switching to departure control, realized this. Sent for and received ACARS clearance about 1 min later. Remainder of flight uneventful.

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Original NASA ASRS Text

Title: A FOKKER 100 FLC DEPARTED DFW WITHOUT AN IFR CLRNC.

Narrative: LEFT GATE WITHOUT IFR CLRNC. JUST AFTER TKOF AND PRIOR TO SWITCHING TO DEP CTL, REALIZED THIS. SENT FOR AND RECEIVED ACARS CLRNC ABOUT 1 MIN LATER. REMAINDER OF FLT UNEVENTFUL.

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.