An air carrier widebody transport taxied across an active departure runway at ord.

Attributes
ACN	230427
Time
Date	199301
Day	Fri
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : ord
State Reference	IL
Altitude	agl bound lower : 0 agl bound upper : 0
Environment
Flight Conditions	VMC
Light	Night
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	Widebody, Low Wing, 4 Turbojet Eng
Flight Phase	ground other : taxi
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp
Experience	flight time last 90 days : 182 flight time total : 6550 flight time type : 238
ASRS Report	230427
Person 2
Affiliation	company : air carrier
Function	flight crew : second officer
Qualification	pilot : private pilot : instrument pilot : flight engineer pilot : commercial
Experience	flight time last 90 days : 210 flight time total : 2000 flight time type : 250
ASRS Report	230222
Events
Anomaly	incursion : runway non adherence : clearance
Independent Detector	other controllera
Resolutory Action	none taken : detected after the fact
Consequence	Other
Supplementary
Primary Problem	Airport
Air Traffic Incident	Pilot Deviation
Situations
Airport	other physical facility procedure or policy : unspecified

Narrative:

It was the captain's first trip to chicago O'hare in many yrs. The so was both new to the company and to the airplane. I had been to O'hare many times and was busy telling the captain and so what the correct procedures were for pushback and taxi. We were departing from the north end of the concourse and after pushback and engine start, we were cleared by ord ground control to take the outer to the jog for 9L. We started taxiing and I showed the captain the way to the outer taxiway. The runways active only for takeoff were 4L, 9L, and 32L from the T1 intersection. When it was time to continue on the outer taxiway, I instead glanced at my 20/9 airport diagram and misread where the jog taxiway was. I then told the captain to continue straight ahead (on the 9L/27R parallel taxiway) to the jog and 9L. This resulted in us taxiing across runway 4L on the 9L/27R parallel without a clearance. After we passed 4L, ground control said 'air carrier widebody transport, you went the wrong way. Hold short of the jog and contact tower.' nothing else was said about the matter by tower or ground. Supplemental information from acn 230220: we were on the 'new scenic' taxiway and crossed runway 4L, to the jog taxiway.

Original NASA ASRS Text

Title: AN ACR WDB TAXIED ACROSS AN ACTIVE DEP RWY AT ORD.

Narrative: IT WAS THE CAPT'S FIRST TRIP TO CHICAGO O'HARE IN MANY YRS. THE SO WAS BOTH NEW TO THE COMPANY AND TO THE AIRPLANE. I HAD BEEN TO O'HARE MANY TIMES AND WAS BUSY TELLING THE CAPT AND SO WHAT THE CORRECT PROCS WERE FOR PUSHBACK AND TAXI. WE WERE DEPARTING FROM THE N END OF THE CONCOURSE AND AFTER PUSHBACK AND ENG START, WE WERE CLRED BY ORD GND CTL TO TAKE THE OUTER TO THE JOG FOR 9L. WE STARTED TAXIING AND I SHOWED THE CAPT THE WAY TO THE OUTER TXWY. THE RWYS ACTIVE ONLY FOR TKOF WERE 4L, 9L, AND 32L FROM THE T1 INTXN. WHEN IT WAS TIME TO CONTINUE ON THE OUTER TXWY, I INSTEAD GLANCED AT MY 20/9 ARPT DIAGRAM AND MISREAD WHERE THE JOG TXWY WAS. I THEN TOLD THE CAPT TO CONTINUE STRAIGHT AHEAD (ON THE 9L/27R PARALLEL TXWY) TO THE JOG AND 9L. THIS RESULTED IN US TAXIING ACROSS RWY 4L ON THE 9L/27R PARALLEL WITHOUT A CLRNC. AFTER WE PASSED 4L, GND CTL SAID 'ACR WDB, YOU WENT THE WRONG WAY. HOLD SHORT OF THE JOG AND CONTACT TWR.' NOTHING ELSE WAS SAID ABOUT THE MATTER BY TWR OR GND. SUPPLEMENTAL INFO FROM ACN 230220: WE WERE ON THE 'NEW SCENIC' TXWY AND CROSSED RWY 4L, TO THE JOG 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.