An air carrier B757 crossed a hold short line without clearance.

Attributes
ACN	337983
Time
Date	199606
Day	Tue
Local Time Of Day	1801 To 2400
Place
Locale Reference	airport : yyz
State Reference	ON
Altitude	agl bound lower : 0 agl bound upper : 0
Environment
Light	Dusk
Aircraft 1
Controlling Facilities	tower : dca
Operator	common carrier : air carrier
Make Model Name	B757-200
Operating Under FAR Part	Part 121
Navigation In Use	Other Other
Flight Phase	ground other : taxi
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp pilot : instrument pilot : flight engineer pilot : commercial
Experience	flight time last 90 days : 200 flight time total : 15000 flight time type : 2500
ASRS Report	337983
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : commercial pilot : instrument
Events
Anomaly	conflict : ground less severe incursion : runway non adherence : clearance non adherence : far other anomaly other
Independent Detector	other flight crewa
Resolutory Action	none taken : detected after the fact
Consequence	Other
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

Taxi out for takeoff. Ground queried if we could accept intersection takeoff on runway 24R at intersection of taxiway B (currently taxiing west on taxiway B). Performance data check, legal -- accepted intersection takeoff at taxiway B on runway 24R. Approaching hold short line, looked down to ascertain departure control frequency. In so doing crossed hold short line by a few feet. Stopped aircraft before entering runway (not cleared into position). Small aircraft on short final landed, with no incident. Lesson: keep priorities in order, first was taxi, if need a frequency, could simply ask.

Original NASA ASRS Text

Title: AN ACR B757 CROSSED A HOLD SHORT LINE WITHOUT CLRNC.

Narrative: TAXI OUT FOR TKOF. GND QUERIED IF WE COULD ACCEPT INTXN TKOF ON RWY 24R AT INTXN OF TXWY B (CURRENTLY TAXIING W ON TXWY B). PERFORMANCE DATA CHK, LEGAL -- ACCEPTED INTXN TKOF AT TXWY B ON RWY 24R. APCHING HOLD SHORT LINE, LOOKED DOWN TO ASCERTAIN DEP CTL FREQ. IN SO DOING CROSSED HOLD SHORT LINE BY A FEW FEET. STOPPED ACFT BEFORE ENTERING RWY (NOT CLRED INTO POS). SMALL ACFT ON SHORT FINAL LANDED, WITH NO INCIDENT. LESSON: KEEP PRIORITIES IN ORDER, FIRST WAS TAXI, IF NEED A FREQ, COULD SIMPLY ASK.

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.