<< >> NASA ASRS Report 530958, November 2001

A canadair CL65 rejected takeoff at 80-90 KTS due to aircraft veering to right with full left rudder applied. Cause unknown.

Attributes
ACN	530958
Time
Date	200111
Day	Thu
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : zzz.airport
State Reference	US
Altitude	agl single value : 0
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	Regional Jet CL65, Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Flight Phase	ground : takeoff roll
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : multi engine pilot : instrument pilot : commercial pilot : cfi
Experience	flight time last 90 days : 270 flight time total : 3600 flight time type : 1900
ASRS Report	530958
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Events
Anomaly	aircraft equipment problem : critical other anomaly other
Independent Detector	aircraft equipment other aircraft equipment : left brake temp indicators other flight crewa other flight crewb
Resolutory Action	flight crew : rejected takeoff
Consequence	other other
Supplementary
Problem Areas	Aircraft
Primary Problem	Aircraft

Narrative:

The aircraft taxied into position on runway 23 at ZZZ. The captain applied thrust to the aircraft and there was a slight yawing motion. After I set takeoff thrust, the aircraft accelerated normally. However, as airspeed increased, the aircraft slowly veered off the centerline to the right. At approximately 80-90 KTS, the captain performed an aborted takeoff to prevent the aircraft from exiting the runway. The captain stated that full left rudder was applied and the aircraft did not respond to inputs. After notifying ATC and the flight attendant of our intentions, the outboard and inboard left brake indicators were in the white 7-8 range. Back at the gate, brake (btms) indications of the left inboard and outboard heat indicators went to 9. Passenger stayed on board the aircraft while it was determined whether or not it was safe to deplane. Passenger were safely removed. Left brakes were too hot to touch with hands and there was a burning odor which was very noticeable. Maintenance was called. The reason for the high brake temperatures has yet to be determined. Flight was canceled.

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Original NASA ASRS Text

Title: A CANADAIR CL65 REJECTED TKOF AT 80-90 KTS DUE TO ACFT VEERING TO R WITH FULL L RUDDER APPLIED. CAUSE UNKNOWN.

Narrative: THE ACFT TAXIED INTO POS ON RWY 23 AT ZZZ. THE CAPT APPLIED THRUST TO THE ACFT AND THERE WAS A SLIGHT YAWING MOTION. AFTER I SET TKOF THRUST, THE ACFT ACCELERATED NORMALLY. HOWEVER, AS AIRSPD INCREASED, THE ACFT SLOWLY VEERED OFF THE CTRLINE TO THE R. AT APPROX 80-90 KTS, THE CAPT PERFORMED AN ABORTED TKOF TO PREVENT THE ACFT FROM EXITING THE RWY. THE CAPT STATED THAT FULL L RUDDER WAS APPLIED AND THE ACFT DID NOT RESPOND TO INPUTS. AFTER NOTIFYING ATC AND THE FLT ATTENDANT OF OUR INTENTIONS, THE OUTBOARD AND INBOARD L BRAKE INDICATORS WERE IN THE WHITE 7-8 RANGE. BACK AT THE GATE, BRAKE (BTMS) INDICATIONS OF THE L INBOARD AND OUTBOARD HEAT INDICATORS WENT TO 9. PAX STAYED ON BOARD THE ACFT WHILE IT WAS DETERMINED WHETHER OR NOT IT WAS SAFE TO DEPLANE. PAX WERE SAFELY REMOVED. L BRAKES WERE TOO HOT TO TOUCH WITH HANDS AND THERE WAS A BURNING ODOR WHICH WAS VERY NOTICEABLE. MAINT WAS CALLED. THE REASON FOR THE HIGH BRAKE TEMPS HAS YET TO BE DETERMINED. FLT WAS CANCELED.

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.