Narrative:

After a long morning of waiting for the fog to lift and sitting at an unfamiliar area of the airport, visibility finally improved enough for departure. My clearance still active, I called ramp control for taxi instructions. 'Taxi to taxiway iw via taxiway aa and contact ground 127.5' I don't recall if I was told to expect runway 34, but nevertheless, that was the ATIS announced departure runway. I, however, turned left on taxiway aa and taxied to taxiway ie, sure I read taxiway iw. Taxiway ie would have led me to runway 35, the runway I'm so used to departing on. I can see how I just droned on in complacency. I contacted ground at taxiway ie. He queried me as to my location. I then realized I was at taxiway ie and not taxiway iw. I requested a 180 degree turn on taxiway aa to taxi to taxiway iw. It was approved with no further incident. Very long and busy morning with extremely poor visibility at times had assuredly tired me into making simple yet potentially hazardous mistakes. I need to listen carefully to ATIS, and then have an idea of what I'll probably get cleared for before contacting ground. In the future, I certainly plan to be more diligent in reading the airport diagram.

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Original NASA ASRS Text

Title: B190 FLC BECOME DISORIENTED IN GND FOG AT DEN AND TAXI IN WRONG DIRECTION ON WRONG TXWY.

Narrative: AFTER A LONG MORNING OF WAITING FOR THE FOG TO LIFT AND SITTING AT AN UNFAMILIAR AREA OF THE ARPT, VISIBILITY FINALLY IMPROVED ENOUGH FOR DEP. MY CLRNC STILL ACTIVE, I CALLED RAMP CTL FOR TAXI INSTRUCTIONS. 'TAXI TO TXWY IW VIA TXWY AA AND CONTACT GND 127.5' I DON'T RECALL IF I WAS TOLD TO EXPECT RWY 34, BUT NEVERTHELESS, THAT WAS THE ATIS ANNOUNCED DEP RWY. I, HOWEVER, TURNED L ON TXWY AA AND TAXIED TO TXWY IE, SURE I READ TXWY IW. TXWY IE WOULD HAVE LED ME TO RWY 35, THE RWY I'M SO USED TO DEPARTING ON. I CAN SEE HOW I JUST DRONED ON IN COMPLACENCY. I CONTACTED GND AT TXWY IE. HE QUERIED ME AS TO MY LOCATION. I THEN REALIZED I WAS AT TXWY IE AND NOT TXWY IW. I REQUESTED A 180 DEG TURN ON TXWY AA TO TAXI TO TXWY IW. IT WAS APPROVED WITH NO FURTHER INCIDENT. VERY LONG AND BUSY MORNING WITH EXTREMELY POOR VISIBILITY AT TIMES HAD ASSUREDLY TIRED ME INTO MAKING SIMPLE YET POTENTIALLY HAZARDOUS MISTAKES. I NEED TO LISTEN CAREFULLY TO ATIS, AND THEN HAVE AN IDEA OF WHAT I'LL PROBABLY GET CLRED FOR BEFORE CONTACTING GND. IN THE FUTURE, I CERTAINLY PLAN TO BE MORE DILIGENT IN READING THE ARPT DIAGRAM.

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.