Taxiway incursion by a B737 PIC during taxi out at bwi, md.

Attributes
ACN	515970
Time
Date	200106
Day	Fri
Local Time Of Day	1801 To 2400
Place
Locale Reference	airport : bwi.airport
State Reference	MD
Altitude	agl single value : 0
Environment
Flight Conditions	VMC
Light	Night
Aircraft 1
Controlling Facilities	tower : lga.tower
Operator	common carrier : air carrier
Make Model Name	B737 Undifferentiated or Other Model
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 : 250 flight time total : 20000 flight time type : 10000
ASRS Report	515970
Events
Anomaly	incursion : taxiway non adherence : clearance other anomaly other
Resolutory Action	none taken : detected after the fact
Consequence	faa : reviewed incident with flight crew
Supplementary
Problem Areas	Flight Crew Human Performance Airport Environmental Factor
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

Was (apparently) cleared to taxi to runway via taxiway B. I didn't hear a route assignment, so I went via taxiway C which is much more common. Controller stated I was cleared via taxiway B and I disputed that. He said there was no conflict and no problem.

Original NASA ASRS Text

Title: TXWY INCURSION BY A B737 PIC DURING TAXI OUT AT BWI, MD.

Narrative: WAS (APPARENTLY) CLRED TO TAXI TO RWY VIA TXWY B. I DIDN'T HEAR A RTE ASSIGNMENT, SO I WENT VIA TXWY C WHICH IS MUCH MORE COMMON. CTLR STATED I WAS CLRED VIA TXWY B AND I DISPUTED THAT. HE SAID THERE WAS NO CONFLICT AND NO PROB.

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.