A B767 flight crew misunderstood ord tower. An exit was made on runway 27 versus taxiway T-7.

Attributes
ACN	631124
Time
Date	200409
Day	Mon
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : ord.airport
State Reference	IL
Altitude	agl single value : 0
Aircraft 1
Controlling Facilities	tracon : d21.tracon
Operator	common carrier : air carrier
Make Model Name	B767-300 and 300 ER
Operating Under FAR Part	Part 121
Flight Phase	landing : roll
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Experience	flight time last 90 days : 250 flight time total : 10500 flight time type : 3000
ASRS Report	631124
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Events
Anomaly	incursion : runway non adherence : clearance non adherence : far
Independent Detector	other controllera
Resolutory Action	none taken : detected after the fact
Consequence	faa : reviewed incident with flight crew
Supplementary
Problem Areas	ATC Human Performance Flight Crew Human Performance
Primary Problem	Ambiguous

Narrative:

First officer was landing in ord runway 14R. I was planning my exit point between T-7 to T-10. Upon landing rollout, the first officer and I both thought we have been told to 'take 27.'' I read back 'take 27.' approaching intersection runway 27L at about T-10 ATC told us to stop. We stopped short of taxiway M and exited left on taxiway M. Confusion in terminology caused both the first officer and I to misinterp tower's instructions to 'take T-7' rather than 'take 27.'

Original NASA ASRS Text

Title: A B767 FLT CREW MISUNDERSTOOD ORD TWR. AN EXIT WAS MADE ON RWY 27 VERSUS TXWY T-7.

Narrative: FO WAS LNDG IN ORD RWY 14R. I WAS PLANNING MY EXIT POINT BTWN T-7 TO T-10. UPON LNDG ROLLOUT, THE FO AND I BOTH THOUGHT WE HAVE BEEN TOLD TO 'TAKE 27.'' I READ BACK 'TAKE 27.' APCHING INTXN RWY 27L AT ABOUT T-10 ATC TOLD US TO STOP. WE STOPPED SHORT OF TXWY M AND EXITED L ON TXWY M. CONFUSION IN TERMINOLOGY CAUSED BOTH THE FO AND I TO MISINTERP TWR'S INSTRUCTIONS TO 'TAKE T-7' RATHER THAN 'TAKE 27.'

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.