Narrative:

After landing at blf attempted to cancel IFR flight plan with ZID. My first officer and myself both thought ZID had received our IFR cancellation. However, the local police were dispatched to the airport to determine the status of our flight. One factor that I believe contributed to this situation was the fact that ZID was very busy working aircraft on various other frequencys.

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Original NASA ASRS Text

Title: ATTEMPTED TO CANCEL IFR FLT PLAN WITH CTR. FO AND RPTR BOTH THOUGHT CTR RECEIVED CANCELLATION.

Narrative: AFTER LNDG AT BLF ATTEMPTED TO CANCEL IFR FLT PLAN WITH ZID. MY FO AND MYSELF BOTH THOUGHT ZID HAD RECEIVED OUR IFR CANCELLATION. HOWEVER, THE LCL POLICE WERE DISPATCHED TO THE ARPT TO DETERMINE THE STATUS OF OUR FLT. ONE FACTOR THAT I BELIEVE CONTRIBUTED TO THIS SIT WAS THE FACT THAT ZID WAS VERY BUSY WORKING ACFT ON VARIOUS OTHER FREQS.

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.