Narrative:

I was on an IFR flight from conway, ar, to baltimore in an small transport. ATC assigned me a new routing, in which I read back the clearance correctly. Later the center facility jumped my case for being 20 mi west of course. I rechked my navigation radios and everything on my equipment showed me on course at that time. Callback conversation with reporter revealed the following: aircraft was in descent and had been given several reroutings. ATC was expecting aircraft on V140 and aircraft was actually on V143, which both depart mol on diverging course. Was no loss of traffic sep and flight was vectored back to other arwy. Reporter not certain if amended route given wrong or just not coordinated with next sector. Is certain he was on arwy he readback on clearance and if readback wrong was not challenged by controller.

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Original NASA ASRS Text

Title: COPR SMT TRACK DEVIATION.

Narrative: I WAS ON AN IFR FLT FROM CONWAY, AR, TO BALTIMORE IN AN SMT. ATC ASSIGNED ME A NEW ROUTING, IN WHICH I READ BACK THE CLRNC CORRECTLY. LATER THE CENTER FAC JUMPED MY CASE FOR BEING 20 MI W OF COURSE. I RECHKED MY NAV RADIOS AND EVERYTHING ON MY EQUIP SHOWED ME ON COURSE AT THAT TIME. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING: ACFT WAS IN DSCNT AND HAD BEEN GIVEN SEVERAL REROUTINGS. ATC WAS EXPECTING ACFT ON V140 AND ACFT WAS ACTUALLY ON V143, WHICH BOTH DEPART MOL ON DIVERGING COURSE. WAS NO LOSS OF TFC SEP AND FLT WAS VECTORED BACK TO OTHER ARWY. RPTR NOT CERTAIN IF AMENDED ROUTE GIVEN WRONG OR JUST NOT COORDINATED WITH NEXT SECTOR. IS CERTAIN HE WAS ON ARWY HE READBACK ON CLRNC AND IF READBACK WRONG WAS NOT CHALLENGED BY CTLR.

Data retrieved from NASA's ASRS site as of August 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.