BE1900 taxiing at dfw follows incorrect route and conflicts with B757 traffic.

Attributes
ACN	580987
Time
Date	200305
Day	Sun
Local Time Of Day	1801 To 2400
Place
Locale Reference	airport : dfw.airport
State Reference	TX
Altitude	agl single value : 0
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	Beech 1900
Operating Under FAR Part	Part 135
Flight Phase	ground : taxi
Flight Plan	IFR
Aircraft 2
Controlling Facilities	tower : dfw.tower
Operator	common carrier : air carrier
Make Model Name	B757 Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Flight Phase	ground : taxi
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : cfi pilot : commercial pilot : instrument pilot : atp pilot : multi engine
Experience	flight time last 90 days : 200 flight time total : 4200 flight time type : 2500
ASRS Report	580987
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Events
Anomaly	conflict : ground less severe ground encounters other incursion : taxiway non adherence : clearance
Independent Detector	other flight crewa other flight crewb
Resolutory Action	controller : issued new clearance
Consequence	faa : reviewed incident with flight crew
Supplementary
Problem Areas	Flight Crew Human Performance Aircraft
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

Taxiing out of the gates of dfw to the active runway for takeoff, I followed what I thought was the correct clearance. The taxi route that I followed was in fact the incorrect one. The result was crossing paths with a B757. The ground controller informed us of our poor ability to follow directions, and provided us with further instructions to help the situation. Upon the initial taxi roll, I noticed a slight vibration from the nosewheel which I think distracted me from paying closer attention to our ATC clrncs. I further contribute my lack of situational awareness to fatigue. This particular flight was the last leg of day 6 which was my second 'back to back' of 5 days on. I will be more cognitive in the future.

Original NASA ASRS Text

Title: BE1900 TAXIING AT DFW FOLLOWS INCORRECT RTE AND CONFLICTS WITH B757 TFC.

Narrative: TAXIING OUT OF THE GATES OF DFW TO THE ACTIVE RWY FOR TKOF, I FOLLOWED WHAT I THOUGHT WAS THE CORRECT CLRNC. THE TAXI RTE THAT I FOLLOWED WAS IN FACT THE INCORRECT ONE. THE RESULT WAS XING PATHS WITH A B757. THE GND CTLR INFORMED US OF OUR POOR ABILITY TO FOLLOW DIRECTIONS, AND PROVIDED US WITH FURTHER INSTRUCTIONS TO HELP THE SIT. UPON THE INITIAL TAXI ROLL, I NOTICED A SLIGHT VIBRATION FROM THE NOSEWHEEL WHICH I THINK DISTRACTED ME FROM PAYING CLOSER ATTN TO OUR ATC CLRNCS. I FURTHER CONTRIBUTE MY LACK OF SITUATIONAL AWARENESS TO FATIGUE. THIS PARTICULAR FLT WAS THE LAST LEG OF DAY 6 WHICH WAS MY SECOND 'BACK TO BACK' OF 5 DAYS ON. I WILL BE MORE COGNITIVE IN THE FUTURE.

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.