Narrative:

Approaching guc ZDV gave us holding instrument at hbu VOR. Just prior to entering holding we were cleared for a visual approach to guc. Shortly after starting descent we encountered IFR WX conditions and were at 12000 ft returning to hbu VOR. Den told us to climb 13000 ft to hbu and I thought cleared for runway 6 FMS approach. Upon reaching the airport the winds were unacceptable for runway 6 and we landed visually on runway 24. Guc unicom was informed of our intentions but we failed to cancel IFR with den prior to landing runway 24. Departing guc on runway 24 at XA39, after airborne den asked our position which was southwest of hbu VOR. When den seemed concerned about our answer, den was told of our runway 24 departure. We do not remember the clearance starting anything other than cleared to duffel intersection. As PIC I realize now my many mistakes. I should not have accepted a visual approach so readily, and without clearly understanding to which runway. Then in the fast changing WX conditions on approach to keep ZDV informed instead of guc unicom. Then on departure making sure that all of us understood the departure runway.

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Original NASA ASRS Text

Title: AN ACR FLC ENTERED IMC WHILE ON A VISUAL APCH INTO GUC. AFTER MISSING THE APCH, AND FLYING AN INST APCH, THE FLC FAILED TO CANCEL IFR.

Narrative: APCHING GUC ZDV GAVE US HOLDING INST AT HBU VOR. JUST PRIOR TO ENTERING HOLDING WE WERE CLRED FOR A VISUAL APCH TO GUC. SHORTLY AFTER STARTING DSCNT WE ENCOUNTERED IFR WX CONDITIONS AND WERE AT 12000 FT RETURNING TO HBU VOR. DEN TOLD US TO CLB 13000 FT TO HBU AND I THOUGHT CLRED FOR RWY 6 FMS APCH. UPON REACHING THE ARPT THE WINDS WERE UNACCEPTABLE FOR RWY 6 AND WE LANDED VISUALLY ON RWY 24. GUC UNICOM WAS INFORMED OF OUR INTENTIONS BUT WE FAILED TO CANCEL IFR WITH DEN PRIOR TO LNDG RWY 24. DEPARTING GUC ON RWY 24 AT XA39, AFTER AIRBORNE DEN ASKED OUR POS WHICH WAS SW OF HBU VOR. WHEN DEN SEEMED CONCERNED ABOUT OUR ANSWER, DEN WAS TOLD OF OUR RWY 24 DEP. WE DO NOT REMEMBER THE CLRNC STARTING ANYTHING OTHER THAN CLRED TO DUFFEL INTXN. AS PIC I REALIZE NOW MY MANY MISTAKES. I SHOULD NOT HAVE ACCEPTED A VISUAL APCH SO READILY, AND WITHOUT CLRLY UNDERSTANDING TO WHICH RWY. THEN IN THE FAST CHANGING WX CONDITIONS ON APCH TO KEEP ZDV INFORMED INSTEAD OF GUC UNICOM. THEN ON DEP MAKING SURE THAT ALL OF US UNDERSTOOD THE DEP RWY.

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.