B737-300 veers right on both first and second takeoff attempts.

Attributes
ACN	709932
Time
Date	200609
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : den.airport
State Reference	CO
Altitude	agl single value : 0
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	B737-300
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
Experience	flight time last 90 days : 250 flight time total : 10000 flight time type : 2500
ASRS Report	709932
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Events
Anomaly	aircraft equipment problem : critical other anomaly
Independent Detector	other flight crewa
Resolutory Action	other
Consequence	other
Supplementary
Problem Areas	Aircraft Flight Crew Human Performance
Primary Problem	Aircraft

Narrative:

First officer began takeoff roll and almost immediately the aircraft veered to the right. Left rudder seemed sluggish at best. Takeoff was aborted and I taxied off using tiller. #2 seemed to spool slowly so we performed an engine run-up. #2 spooled a little slow -- thought the combination of a slow #2 spool and a gust may have been the problem. Taxied back to runway; and this time I made the takeoff. Set brakes and let engines stabilize for a little extra time. All seemed normal so released the brakes and started the roll. Again the aircraft veered to the right; and with full left rudder; it would not come back to centerline. Grabbed the tiller and once again taxied off. Called maintenance and he had us perform some taxi tests with rudder pedals and then tiller. Eventually had us slowly taxi back to the gate using tiller.

Original NASA ASRS Text

Title: B737-300 VEERS R ON BOTH FIRST AND SECOND TKOF ATTEMPTS.

Narrative: FO BEGAN TKOF ROLL AND ALMOST IMMEDIATELY THE ACFT VEERED TO THE R. L RUDDER SEEMED SLUGGISH AT BEST. TKOF WAS ABORTED AND I TAXIED OFF USING TILLER. #2 SEEMED TO SPOOL SLOWLY SO WE PERFORMED AN ENG RUN-UP. #2 SPOOLED A LITTLE SLOW -- THOUGHT THE COMBINATION OF A SLOW #2 SPOOL AND A GUST MAY HAVE BEEN THE PROB. TAXIED BACK TO RWY; AND THIS TIME I MADE THE TKOF. SET BRAKES AND LET ENGS STABILIZE FOR A LITTLE EXTRA TIME. ALL SEEMED NORMAL SO RELEASED THE BRAKES AND STARTED THE ROLL. AGAIN THE ACFT VEERED TO THE R; AND WITH FULL L RUDDER; IT WOULD NOT COME BACK TO CTRLINE. GRABBED THE TILLER AND ONCE AGAIN TAXIED OFF. CALLED MAINT AND HE HAD US PERFORM SOME TAXI TESTS WITH RUDDER PEDALS AND THEN TILLER. EVENTUALLY HAD US SLOWLY TAXI BACK TO THE GATE USING TILLER.

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.