Narrative:

After calling for taxi clearance; we were cleared to taxi to runway 28 via the perry 1 standard route; cleared to cross runway 22. The captain had me look up the taxi route on the appropriate page. I looked up the routes; and I told him directions using the perry 2 route by mistake. Ground informed us of our mistake once we were on taxiway C. They told us to continue and contact tower for takeoff. In seven years at company; this is the second time I have been instructed to use the perry standard taxi route. It would be beneficial if the standard routes were used as a standard practice or not used at all. Lastly; the use of the term 'pier' instead of concourse is non-standard and confusing.

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Original NASA ASRS Text

Title: Air carrier First Officer reports being cleared to taxi via the Perry 1 standard taxi route at BWI but gets confused and reads the Perry 2.

Narrative: After calling for taxi clearance; we were cleared to taxi to Runway 28 via the Perry 1 standard route; cleared to cross Runway 22. The Captain had me look up the taxi route on the appropriate page. I looked up the routes; and I told him directions using the Perry 2 route by mistake. Ground informed us of our mistake once we were on Taxiway C. They told us to continue and contact Tower for takeoff. In seven years at company; this is the second time I have been instructed to use the Perry standard taxi route. It would be beneficial if the standard routes were used as a standard practice or not used at all. Lastly; the use of the term 'pier' instead of concourse is non-standard and confusing.

Data retrieved from NASA's ASRS site 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.