Narrative:

After de-icing we taxied to runway 23 at cyyz. While on taxi we were looking at our charts to assure we were stopping at the correct hold short line for runway 23. I looked up from my chart and noticed the hold short line for 23 approaching. I stepped on the brakes and alerted the captain. We were unable to stop in time and crossed the hold short line by about 15 ft.the area is confusing on the commercial airport chart. The taxiway changes names close to the runway and the hold short line is not as close to the runway as most. Therefore; we did not think we were close to the hold short line. We were both distracted looking at the airport chart to make sure we were where we were supposed to be and did not see the hold short line approaching. We had briefed the taxi route several times because our instructions kept changing due to de-icing and departure delays from ATC.

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Original NASA ASRS Text

Title: The flight crew of an unidentified aircraft type failed to note the hold short line for Runway 23 at CYYZ and crossed it by about 15 FT.

Narrative: After de-icing we taxied to Runway 23 at CYYZ. While on taxi we were looking at our charts to assure we were stopping at the correct hold short line for Runway 23. I looked up from my chart and noticed the hold short line for 23 approaching. I stepped on the brakes and alerted the Captain. We were unable to stop in time and crossed the hold short line by about 15 FT.The area is confusing on the commercial airport Chart. The taxiway changes names close to the runway and the hold short line is not as close to the runway as most. Therefore; we did not think we were close to the hold short line. We were both distracted looking at the airport chart to make sure we were where we were supposed to be and did not see the hold short line approaching. We had briefed the taxi route several times because our instructions kept changing due to de-icing and departure delays from ATC.

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.