A B737-500 PIC crosses over the hold short line for runway 23 at cyyz, ont.

Attributes
ACN	542437
Time
Date	200203
Day	Fri
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : cyyz.airport
State Reference	ON
Altitude	agl single value : 0
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tower : anc.tower
Operator	common carrier : air carrier
Make Model Name	B737-500
Operating Under FAR Part	Part 121
Navigation In Use	other
Flight Phase	ground : taxi
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : private pilot : flight engineer pilot : atp
Experience	flight time last 90 days : 200 flight time total : 15000 flight time type : 11000
ASRS Report	542437
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Events
Anomaly	incursion : runway non adherence : clearance non adherence : published procedure non adherence : far other anomaly other
Independent Detector	other controllera
Resolutory Action	none taken : detected after the fact
Consequence	faa : reviewed incident with flight crew
Supplementary
Problem Areas	Chart Or Publication Airport ATC Human Performance Flight Crew Human Performance
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

We were originally cleared to taxi to runway 24R, and were set up for the departure procedure specific to that runway. Just as we exited the apron area ground control cleared us to taxi via txwys B and H to runway 23. This necessitated us looking up the departure procedure specific to runway 23, and changing our instrument set-up to reflect this new departure procedure. This took a little time, so it felt a bit rushed to do this and accomplish the departure briefing and taxi checklist as we approached the end of the runway. As we taxied down taxiway H I thought that it went all the way to the departure end of the runway. If I had taken more time, and been more careful I would have realized that taxiway H turns into taxiway Q as you approach the end of runway 23. This is slightly confusing, since most of the time we taxi to use the full runway length, and encounter the runway hold short line after turning perpendicular to the runway. Tower informed us that we had crossed the hold short line. We apologized, and were cleared into position for takeoff.

Original NASA ASRS Text

Title: A B737-500 PIC CROSSES OVER THE HOLD SHORT LINE FOR RWY 23 AT CYYZ, ONT.

Narrative: WE WERE ORIGINALLY CLRED TO TAXI TO RWY 24R, AND WERE SET UP FOR THE DEP PROC SPECIFIC TO THAT RWY. JUST AS WE EXITED THE APRON AREA GND CTL CLRED US TO TAXI VIA TXWYS B AND H TO RWY 23. THIS NECESSITATED US LOOKING UP THE DEP PROC SPECIFIC TO RWY 23, AND CHANGING OUR INST SET-UP TO REFLECT THIS NEW DEP PROC. THIS TOOK A LITTLE TIME, SO IT FELT A BIT RUSHED TO DO THIS AND ACCOMPLISH THE DEP BRIEFING AND TAXI CHKLIST AS WE APCHED THE END OF THE RWY. AS WE TAXIED DOWN TXWY H I THOUGHT THAT IT WENT ALL THE WAY TO THE DEP END OF THE RWY. IF I HAD TAKEN MORE TIME, AND BEEN MORE CAREFUL I WOULD HAVE REALIZED THAT TXWY H TURNS INTO TXWY Q AS YOU APCH THE END OF RWY 23. THIS IS SLIGHTLY CONFUSING, SINCE MOST OF THE TIME WE TAXI TO USE THE FULL RWY LENGTH, AND ENCOUNTER THE RWY HOLD SHORT LINE AFTER TURNING PERPENDICULAR TO THE RWY. TWR INFORMED US THAT WE HAD CROSSED THE HOLD SHORT LINE. WE APOLOGIZED, AND WERE CLRED INTO POS FOR TKOF.

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.