B757-200 captain failed to turn per cleared taxi route during taxi out causing a face to face encounter with a dc-10. Both aircraft stopped while the ground controller untangled the aircraft.

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Attributes
ACN	533806
Time
Date	200112
Day	Tue
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : bos.airport
State Reference	MA
Altitude	agl single value : 0
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	B757-200
Operating Under FAR Part	Part 121
Navigation In Use	other
Flight Phase	ground : taxi
Flight Plan	IFR
Aircraft 2
Controlling Facilities	tower : bos.tower
Operator	common carrier : air carrier
Make Model Name	DC-10 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 : atp
Experience	flight time last 90 days : 200 flight time type : 700
ASRS Report	533806
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Events
Anomaly	incursion : taxiway non adherence : clearance
Independent Detector	other flight crewa other flight crewb
Resolutory Action	controller : issued new clearance controller : provided flight assist none taken : anomaly accepted
Miss Distance	horizontal : 200
Supplementary
Problem Areas	Flight Crew Human Performance
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

On taxi out at bos, I missed a turn and came into conflict with an air carrier dc-10. We both came to a stop and I realized my mistake. There was never any danger of hitting each other. I was given other taxi instructions by ground and went on my way. Human factors: during taxi out the first officer is frequently out of the loop getting load data and takeoff performances. Both sets of eyes are needed during taxi. After event of 09/tue/01 it has been harder to focus and concentrate. First officer's have told me this also. We now more than ever force ourselves to be mindful of the task at hand.

Original NASA ASRS Text

Title: B757-200 CAPT FAILED TO TURN PER CLRED TAXI RTE DURING TAXI OUT CAUSING A FACE TO FACE ENCOUNTER WITH A DC-10. BOTH ACFT STOPPED WHILE THE GND CTLR UNTANGLED THE ACFT.

Narrative: ON TAXI OUT AT BOS, I MISSED A TURN AND CAME INTO CONFLICT WITH AN ACR DC-10. WE BOTH CAME TO A STOP AND I REALIZED MY MISTAKE. THERE WAS NEVER ANY DANGER OF HITTING EACH OTHER. I WAS GIVEN OTHER TAXI INSTRUCTIONS BY GND AND WENT ON MY WAY. HUMAN FACTORS: DURING TAXI OUT THE FO IS FREQUENTLY OUT OF THE LOOP GETTING LOAD DATA AND TKOF PERFORMANCES. BOTH SETS OF EYES ARE NEEDED DURING TAXI. AFTER EVENT OF 09/TUE/01 IT HAS BEEN HARDER TO FOCUS AND CONCENTRATE. FO'S HAVE TOLD ME THIS ALSO. WE NOW MORE THAN EVER FORCE OURSELVES TO BE MINDFUL OF THE TASK AT HAND.

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.