CRJ700 captain reports reports confusion while taxiing out for takeoff at bos.

Attributes
ACN	1040555
Time
Date	201210
Local Time Of Day	0601-1200
Place
Locale Reference	BOS.Airport
State Reference	MA
Environment
Flight Conditions	VMC
Light	Dawn
Aircraft 1
Make Model Name	Regional Jet 700 ER/LR (CRJ700)
Operating Under FAR Part	Part 121
Flight Phase	Taxi
Flight Plan	IFR
Person 1
Function	Pilot Flying Captain
Qualification	Flight Crew Air Transport Pilot (ATP)
Events
Anomaly	Deviation - Procedural Clearance Ground Incursion Taxiway

Narrative:

Taxiing on delta taxiway the signage was confusing as to where delta went and alpha went. I made the wrong turn on alpha at the same time we caught it ATC asked us about being on alpha. We made a 180 and got back on D with no problems. I was confused by the signs although we had the airport diagram out and had briefed; it still caught us off guard since this was the second trip the captain had made to bos.

Original NASA ASRS Text

Title: CRJ700 Captain reports reports confusion while taxiing out for takeoff at BOS.

Narrative: Taxiing on Delta Taxiway the signage was confusing as to where Delta went and Alpha went. I made the wrong turn on Alpha at the same time we caught it ATC asked us about being on Alpha. We made a 180 and got back on D with no problems. I was confused by the signs although we had the airport diagram out and had briefed; it still caught us off guard since this was the second trip the Captain had made to BOS.

Data retrieved from NASA's ASRS site as of July 2013 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.