Takeoff from unauthorized runway intersection.

Attributes
ACN	114240
Time
Date	198906
Day	Mon
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	Daylight
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	Large Transport, Low Wing, 3 Turbojet Eng
Flight Phase	climbout : takeoff
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : commercial pilot : instrument pilot : flight engineer pilot : atp
Experience	flight time last 90 days : 185 flight time total : 15800 flight time type : 7000
ASRS Report	114240
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp
Events
Anomaly	non adherence : far other anomaly other
Independent Detector	other flight crewa
Resolutory Action	none taken : detected after the fact
Consequence	Other
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

I accepted takeoff clearance from T-2 intersection on runway 32L at ord. I was certain I had used T-2 before and that it was authorized by company operations specifications. It was not there not enough time to recheck without delaying traffic. Takeoff was made with 8000' of runway, 15 degree flaps, full power at 158,000 pounds. Captain should not rely on memory.

Original NASA ASRS Text

Title: TKOF FROM UNAUTHORIZED RWY INTERSECTION.

Narrative: I ACCEPTED TKOF CLRNC FROM T-2 INTXN ON RWY 32L AT ORD. I WAS CERTAIN I HAD USED T-2 BEFORE AND THAT IT WAS AUTHORIZED BY COMPANY OPS SPECS. IT WAS NOT THERE NOT ENOUGH TIME TO RECHECK WITHOUT DELAYING TFC. TKOF WAS MADE WITH 8000' OF RWY, 15 DEG FLAPS, FULL POWER AT 158,000 LBS. CAPT SHOULD NOT RELY ON MEMORY.

Data retrieved from NASA's ASRS site as of August 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.