EMB145 flight crew taxies across a runway at ord.

Attributes
ACN	699279
Time
Date	200605
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : ord.airport
State Reference	IL
Altitude	agl single value : 0
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tower : tpa.tower
Operator	common carrier : air carrier
Make Model Name	EMB ERJ 145 ER&LR
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 : atp
Experience	flight time last 90 days : 180 flight time total : 4200 flight time type : 3300
ASRS Report	699279
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Events
Anomaly	incursion : runway non adherence : clearance
Independent Detector	other controllera other flight crewa
Resolutory Action	none taken : detected after the fact
Consequence	faa : reviewed incident with flight crew
Supplementary
Problem Areas	Flight Crew Human Performance
Primary Problem	Flight Crew Human Performance

Narrative:

We were taxiing out from the gate and got an initial clearance to go the 'penalty box' to work out numbers. During the taxi; we finished our numbers and told ground; after 5 mins of trying to get a break in ground's xmissions; we were ok to go. They cleared us via txwys a; H; P; to what I thought at the time was runway 32L. I glanced at the taxi chart; from taxiway a to taxiway P; and looked up to see taxiway P approaching. Seeing a line of other planes headed towards runway 32L; I thought I was correct in taking the left on taxiway P. We turned; stopped at the threshold of runway 4L/22R; looked on both sides; and crossed. Upon reaching the other side; I realized taxiway P was not this way and we queried ground; who gave us new instructions but did not mention the crossing of the runway. We taxied on and took off uneventfully. Upon reaching destination; I called ord tower and asked if I had caused any headaches. Indeed; I had. It was my reliance on the first officer; who was brand new with only 3 trips into ord; my mishearing of the clearance and my belief that that was where everyone else went and where we usually go that caused my crossing. I should; and will be from now on; much more vigilant in both listening to and understanding clrncs; and paying more attention to where I am instructed to go.

Original NASA ASRS Text

Title: EMB145 FLT CREW TAXIES ACROSS A RWY AT ORD.

Narrative: WE WERE TAXIING OUT FROM THE GATE AND GOT AN INITIAL CLRNC TO GO THE 'PENALTY BOX' TO WORK OUT NUMBERS. DURING THE TAXI; WE FINISHED OUR NUMBERS AND TOLD GND; AFTER 5 MINS OF TRYING TO GET A BREAK IN GND'S XMISSIONS; WE WERE OK TO GO. THEY CLRED US VIA TXWYS A; H; P; TO WHAT I THOUGHT AT THE TIME WAS RWY 32L. I GLANCED AT THE TAXI CHART; FROM TXWY A TO TXWY P; AND LOOKED UP TO SEE TXWY P APCHING. SEEING A LINE OF OTHER PLANES HEADED TOWARDS RWY 32L; I THOUGHT I WAS CORRECT IN TAKING THE L ON TXWY P. WE TURNED; STOPPED AT THE THRESHOLD OF RWY 4L/22R; LOOKED ON BOTH SIDES; AND CROSSED. UPON REACHING THE OTHER SIDE; I REALIZED TXWY P WAS NOT THIS WAY AND WE QUERIED GND; WHO GAVE US NEW INSTRUCTIONS BUT DID NOT MENTION THE XING OF THE RWY. WE TAXIED ON AND TOOK OFF UNEVENTFULLY. UPON REACHING DEST; I CALLED ORD TWR AND ASKED IF I HAD CAUSED ANY HEADACHES. INDEED; I HAD. IT WAS MY RELIANCE ON THE FO; WHO WAS BRAND NEW WITH ONLY 3 TRIPS INTO ORD; MY MISHEARING OF THE CLRNC AND MY BELIEF THAT THAT WAS WHERE EVERYONE ELSE WENT AND WHERE WE USUALLY GO THAT CAUSED MY XING. I SHOULD; AND WILL BE FROM NOW ON; MUCH MORE VIGILANT IN BOTH LISTENING TO AND UNDERSTANDING CLRNCS; AND PAYING MORE ATTN TO WHERE I AM INSTRUCTED TO GO.

Data retrieved from NASA's ASRS site as of January 2009 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.