Narrative:

I had filed IFR direct to kendall-tamiami executive airport with the intention of using the LORAN to go direct and cross radials off vors along our route to monitor our position and have something for backup in case the LORAN lost its signals. I was in a hurry to get passenger X down to miami and to try and beat the WX back to memphis. I had flown with an instructor before I had gotten my instructor license and he had used the exact same model LORAN to go IFR direct also. I assumed it was fine to use as long as VMC prevailed. However, once we were en route, I was planning to cancel IFR once we could descend VFR to our destination. A controller asked me how I was navigating direct and once I told him, he had nothing else to say. Roughly 30 mins later, I received a new clearance to tmb airport using victor airways.

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Original NASA ASRS Text

Title: INSTRUCTOR PLT OF SMA ACFT ATTEMPTED TO XCOUNTRY FLT VIA LORAN NAV BUT WAS GIVEN A VOR ROUTING BY ATC.

Narrative: I HAD FILED IFR DIRECT TO KENDALL-TAMIAMI EXECUTIVE ARPT WITH THE INTENTION OF USING THE LORAN TO GO DIRECT AND CROSS RADIALS OFF VORS ALONG OUR RTE TO MONITOR OUR POS AND HAVE SOMETHING FOR BACKUP IN CASE THE LORAN LOST ITS SIGNALS. I WAS IN A HURRY TO GET PAX X DOWN TO MIAMI AND TO TRY AND BEAT THE WX BACK TO MEMPHIS. I HAD FLOWN WITH AN INSTRUCTOR BEFORE I HAD GOTTEN MY INSTRUCTOR LICENSE AND HE HAD USED THE EXACT SAME MODEL LORAN TO GO IFR DIRECT ALSO. I ASSUMED IT WAS FINE TO USE AS LONG AS VMC PREVAILED. HOWEVER, ONCE WE WERE ENRTE, I WAS PLANNING TO CANCEL IFR ONCE WE COULD DSND VFR TO OUR DEST. A CTLR ASKED ME HOW I WAS NAVING DIRECT AND ONCE I TOLD HIM, HE HAD NOTHING ELSE TO SAY. ROUGHLY 30 MINS LATER, I RECEIVED A NEW CLRNC TO TMB ARPT USING VICTOR AIRWAYS.

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.