Narrative:

Cleared adams, barbados direct for ua 312 ppr ur 888 modux R888 coy, etc. 30 NM south fof requested from piarco control present position direct ppr and was offered direct modux. Accepted this clearance as fuel for diversion destination was as required with no stored or extra fuel. Knowing a course of 335 degree (radial) from fof would make modux good the intention was to fly this track, however, the course actually put in course window and flown was 305 degree. The course from ppr to modux is 308 degree and may have contributed to entering and flying the wrong course from fof. Contacted sju center in range approaching sju boundary. Before radar identification by sju we became aware of the course error and started correcting back and advised sju we were south of course. Subsequent radar identification by sju confirmed the off course position.

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Original NASA ASRS Text

Title: ON OVERWATER FLT, FLT CREW OF LGT FLEW WRONG HEADING.

Narrative: CLRED ADAMS, BARBADOS DIRECT FOR UA 312 PPR UR 888 MODUX R888 COY, ETC. 30 NM S FOF REQUESTED FROM PIARCO CTL PRESENT POSITION DIRECT PPR AND WAS OFFERED DIRECT MODUX. ACCEPTED THIS CLRNC AS FUEL FOR DIVERSION DEST WAS AS REQUIRED WITH NO STORED OR EXTRA FUEL. KNOWING A COURSE OF 335 DEG (RADIAL) FROM FOF WOULD MAKE MODUX GOOD THE INTENTION WAS TO FLY THIS TRACK, HOWEVER, THE COURSE ACTUALLY PUT IN COURSE WINDOW AND FLOWN WAS 305 DEG. THE COURSE FROM PPR TO MODUX IS 308 DEG AND MAY HAVE CONTRIBUTED TO ENTERING AND FLYING THE WRONG COURSE FROM FOF. CONTACTED SJU CENTER IN RANGE APCHING SJU BOUNDARY. BEFORE RADAR IDENTIFICATION BY SJU WE BECAME AWARE OF THE COURSE ERROR AND STARTED CORRECTING BACK AND ADVISED SJU WE WERE S OF COURSE. SUBSEQUENT RADAR IDENTIFICATION BY SJU CONFIRMED THE OFF COURSE POSITION.

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.