An air carrier large transport taxied just over the hold short line.

Attributes
ACN	255916
Time
Date	199311
Day	Mon
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : lax
State Reference	CA
Altitude	agl bound lower : 0 agl bound upper : 0
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	Large Transport, Low Wing, 2 Turbojet Eng
Navigation In Use	Other Other
Flight Phase	ground other : taxi
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp pilot : instrument pilot : flight engineer pilot : commercial
Experience	flight time last 90 days : 160 flight time total : 15000 flight time type : 1500
ASRS Report	255916
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Events
Anomaly	incursion : runway non adherence : clearance other anomaly other
Independent Detector	other flight crewa
Resolutory Action	none taken : detected after the fact other
Consequence	Other
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

We were instructed by tower to exit at taxiway 36. In the captain's judgement (captain was PF), he was going too fast and elected to turn off on the subsequent taxiway -- number 42. As we made the turnoff, we were instructed to hold short of runway 25R and remain on tower frequency. I read back the clearance and assumed the captain had understood the clearance. As we approached the hold line, I noticed he wasn't stopping. I looked at him and began to speak. At this point, he immediately stopped the aircraft -- past the hold line, but short of the runway edge. An medium large transport was on takeoff roll and continued a normal takeoff. The captain later explained that, although he had heard the clearance, he had become momentarily confused about our position. There were new markings, some construction, and he was trying to plot a course to our gate. For my part, I was starting the APU and looking out the right window to check 25R. I should have initially obtained a clear acknowledgment from the captain that we had been instructed to hold short. One other point is that, when ATC issues an instruction during landing rollout, it is almost a sure thing that someone in the cockpit will not understand it due to the high degree of concentration on aircraft control.

Original NASA ASRS Text

Title: AN ACR LGT TAXIED JUST OVER THE HOLD SHORT LINE.

Narrative: WE WERE INSTRUCTED BY TWR TO EXIT AT TXWY 36. IN THE CAPT'S JUDGEMENT (CAPT WAS PF), HE WAS GOING TOO FAST AND ELECTED TO TURN OFF ON THE SUBSEQUENT TXWY -- NUMBER 42. AS WE MADE THE TURNOFF, WE WERE INSTRUCTED TO HOLD SHORT OF RWY 25R AND REMAIN ON TWR FREQ. I READ BACK THE CLRNC AND ASSUMED THE CAPT HAD UNDERSTOOD THE CLRNC. AS WE APCHED THE HOLD LINE, I NOTICED HE WASN'T STOPPING. I LOOKED AT HIM AND BEGAN TO SPEAK. AT THIS POINT, HE IMMEDIATELY STOPPED THE ACFT -- PAST THE HOLD LINE, BUT SHORT OF THE RWY EDGE. AN MLG WAS ON TKOF ROLL AND CONTINUED A NORMAL TKOF. THE CAPT LATER EXPLAINED THAT, ALTHOUGH HE HAD HEARD THE CLRNC, HE HAD BECOME MOMENTARILY CONFUSED ABOUT OUR POS. THERE WERE NEW MARKINGS, SOME CONSTRUCTION, AND HE WAS TRYING TO PLOT A COURSE TO OUR GATE. FOR MY PART, I WAS STARTING THE APU AND LOOKING OUT THE R WINDOW TO CHK 25R. I SHOULD HAVE INITIALLY OBTAINED A CLR ACKNOWLEDGMENT FROM THE CAPT THAT WE HAD BEEN INSTRUCTED TO HOLD SHORT. ONE OTHER POINT IS THAT, WHEN ATC ISSUES AN INSTRUCTION DURING LNDG ROLLOUT, IT IS ALMOST A SURE THING THAT SOMEONE IN THE COCKPIT WILL NOT UNDERSTAND IT DUE TO THE HIGH DEG OF CONCENTRATION ON ACFT CTL.

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.