B777 departing ord aborted takeoff because of conflict traffic on intersecting runway.

Attributes
ACN	582767
Time
Date	200305
Day	Fri
Local Time Of Day	1801 To 2400
Place
Locale Reference	airport : ord.airport
State Reference	IL
Altitude	agl single value : 0
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	B777 Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Flight Phase	ground : takeoff roll ground other : aborted tkof
Flight Plan	IFR
Aircraft 2
Controlling Facilities	tower : ord.tower
Operator	common carrier : air carrier
Make Model Name	Commercial Fixed Wing
Operating Under FAR Part	Part 121
Flight Phase	ground : takeoff roll
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
ASRS Report	582767
Person 2
Affiliation	company : air carrier
Function	flight crew : relief pilot
ASRS Report	582764
Events
Anomaly	conflict : ground less severe non adherence : published procedure non adherence : required legal separation
Independent Detector	other flight crewb
Resolutory Action	controller : issued alert flight crew : rejected takeoff flight crew : took evasive action
Consequence	faa : investigated faa : reviewed incident with flight crew
Supplementary
Problem Areas	ATC Human Performance
Primary Problem	ATC Human Performance
Air Traffic Incident	Operational Error

Narrative:

While holding on runway 32R for departure, all 3 of us heard the tower controller say, 'air carrier X, turn to heading 070 degrees, cleared for takeoff runway 32R.' I acknowledged and read back the clearance. As the first officer was pushing the power up, the relief pilot noticed a potential conflict with air carrier Y departing on runway 9L. I immediately aborted and turned off runway 32R at taxiway H. The controller said he didn't clear us for takeoff. Abort speed was approximately 30 KTS. After departure, we received a message from dispatch from the FAA stating that the controller had erred and had cleared us for takeoff. Kudos to the relief pilot for clearing while the first officer and I were setting power and thereby turning what could have been a close call into a much lesser event.

Original NASA ASRS Text

Title: B777 DEPARTING ORD ABORTED TKOF BECAUSE OF CONFLICT TFC ON INTERSECTING RWY.

Narrative: WHILE HOLDING ON RWY 32R FOR DEP, ALL 3 OF US HEARD THE TWR CTLR SAY, 'ACR X, TURN TO HEADING 070 DEGS, CLRED FOR TKOF RWY 32R.' I ACKNOWLEDGED AND READ BACK THE CLRNC. AS THE FO WAS PUSHING THE PWR UP, THE RELIEF PLT NOTICED A POTENTIAL CONFLICT WITH ACR Y DEPARTING ON RWY 9L. I IMMEDIATELY ABORTED AND TURNED OFF RWY 32R AT TXWY H. THE CTLR SAID HE DIDN'T CLR US FOR TKOF. ABORT SPD WAS APPROX 30 KTS. AFTER DEP, WE RECEIVED A MESSAGE FROM DISPATCH FROM THE FAA STATING THAT THE CTLR HAD ERRED AND HAD CLRED US FOR TKOF. KUDOS TO THE RELIEF PLT FOR CLRING WHILE THE FO AND I WERE SETTING PWR AND THEREBY TURNING WHAT COULD HAVE BEEN A CLOSE CALL INTO A MUCH LESSER EVENT.

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.