An MD88 crosses over the hold short line at taxiway Q for runway 23 at cyyz, ont.

Attributes
ACN	595708
Time
Date	200310
Day	Wed
Local Time Of Day	0001 To 0600
Place
Locale Reference	airport : cyyz.airport
State Reference	ON
Altitude	agl single value : 0
Environment
Flight Conditions	VMC
Light	Dawn
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	MD-88
Operating Under FAR Part	Part 121
Flight Phase	ground : takeoff roll ground : taxi
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : flight engineer pilot : atp
Experience	flight time last 90 days : 180 flight time total : 7000 flight time type : 600
ASRS Report	595708
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Events
Anomaly	aircraft equipment problem : critical incursion : taxiway non adherence : published procedure non adherence : clearance other anomaly other
Independent Detector	other flight crewa other flight crewb
Resolutory Action	aircraft : equipment problem dissipated none taken : anomaly accepted
Supplementary
Problem Areas	Aircraft Environmental Factor Flight Crew Human Performance Airport
Primary Problem	Ambiguous

Narrative:

After a reduced rest overnight, we taxied out for takeoff on runway 23. During takeoff roll, left engine was slow to spool up. Due to length of roll while trying to set takeoff thrust, we elected to exit runway and coordinated with the tower. We taxied back for takeoff on runway 23. We inadvertently passed over hold short line. We stopped and were questioning whether we had passed the ILS hold line or the runway hold short line when the tower told us they would 'get us going shortly.' we then assumed we were not over the hold short line. However, once cleared for takeoff, we continued from our position on the parallel taxiway Q onto the runway and did not observe another hold short line. At no time was any portion of our aircraft breaking the plane of the runway, but we were over the hold short line on the parallel taxiway.

Original NASA ASRS Text

Title: AN MD88 CROSSES OVER THE HOLD SHORT LINE AT TXWY Q FOR RWY 23 AT CYYZ, ONT.

Narrative: AFTER A REDUCED REST OVERNIGHT, WE TAXIED OUT FOR TKOF ON RWY 23. DURING TKOF ROLL, L ENG WAS SLOW TO SPOOL UP. DUE TO LENGTH OF ROLL WHILE TRYING TO SET TKOF THRUST, WE ELECTED TO EXIT RWY AND COORDINATED WITH THE TWR. WE TAXIED BACK FOR TKOF ON RWY 23. WE INADVERTENTLY PASSED OVER HOLD SHORT LINE. WE STOPPED AND WERE QUESTIONING WHETHER WE HAD PASSED THE ILS HOLD LINE OR THE RWY HOLD SHORT LINE WHEN THE TWR TOLD US THEY WOULD 'GET US GOING SHORTLY.' WE THEN ASSUMED WE WERE NOT OVER THE HOLD SHORT LINE. HOWEVER, ONCE CLRED FOR TKOF, WE CONTINUED FROM OUR POS ON THE PARALLEL TXWY Q ONTO THE RWY AND DID NOT OBSERVE ANOTHER HOLD SHORT LINE. AT NO TIME WAS ANY PORTION OF OUR ACFT BREAKING THE PLANE OF THE RWY, BUT WE WERE OVER THE HOLD SHORT LINE ON THE PARALLEL TXWY.

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.