What was found
ON TAKEOFF JUST AFTER POWER WAS SET, NOSE PULLED HARD TO THE LT. LT RUDDER PEDAL ALSO WENT FULL. CORRECTED WITH RIGHT RUDDER & ABORTED TAKE OFF. RUDDER BIAS CHECK BEFORE WAS GOOD. PERFORMED RUDDER BIAS CHECK AFTER AND IT WAS GOOD. PERFORMED A DETAILED INSPECTION OF THE NOSE WHEEL & NLG ASSY. NO VISUAL DEFECTS. ALL CHKD GOOD ON UPON TAXING ACFT. NO ABNORMAL PULLING DR TAXING ISSUES NOTED. PERFORMED HIGH POWER ENG RUNS IAW AMM 71-00-05 IN AN ATTEMPT TO DUPLICATE A RUDDER BIAS ISSUE. ALL CHECKS GOOD, NO DEFECTS NOTED DURING HIGH POWER ENG RUNS. MCG REQUEST REPLACED RUDDER BIAS PHENUMATIC ACTUATOR, REMOVED ASSY & INSTALLED A REPAIRED ASSY IAW AMM 27-22-35. ALL OPS CHECKED GOOD. NO LEAKS NOTED.