Narrative:

We called for taxi from ramp and were given 'taxi runway 18L full length.' we were unfamiliar with that clearance; but I remembered seeing taxi routes listed and pulled them out to read to the captain. He thought the clearance meant to taxi at our discretion to runway 18L; and so had already started. We missed the turn to taxiway H and turned on the parallel taxiway F; crossing taxiway G which made another air carrier stop on taxiway G. I had switched to tower (too soon) and so did not hear ground if they had tried to call us. Factors: unfamiliar with dfw taxi procedures. I think it would be clearer if the taxi instructions were called 'routes' like at lax; i.e.; 'taxi to runway 18L via the full length route.'

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Original NASA ASRS Text

Title: Air carrier taxiing for departure from DFW failed to comply with assigned taxi instructions causing a minor conflict with another aircraft.

Narrative: We called for taxi from ramp and were given 'Taxi Runway 18L full length.' We were unfamiliar with that clearance; but I remembered seeing taxi routes listed and pulled them out to read to the Captain. He thought the clearance meant to taxi at our discretion to Runway 18L; and so had already started. We missed the turn to Taxiway H and turned on the parallel Taxiway F; crossing Taxiway G which made another air carrier stop on Taxiway G. I had switched to Tower (too soon) and so did not hear Ground if they had tried to call us. Factors: Unfamiliar with DFW taxi procedures. I think it would be clearer if the taxi instructions were called 'routes' like at LAX; i.e.; 'Taxi to Runway 18L via the full length route.'

Data retrieved from NASA's ASRS site as of April 2012 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.