What was found
DURING TAKEOFF AT APPROX 90 KIAS, ECAM CAUTION WARNING FOR ENG 1 COMPRESSOR VANE. PFR FAILURE MSG 75-31-10 VBV ACT, HMU. TROUBLE SHOT IAW TSM 75-30-00-810-801-A. INSPECTED ALL VBV DOOR ACTUATORS & FLEXIBLE SHAFTS, MANUALLY OPERATED VBV SYS TO CHECK FREEDOM & SMOOTHNESS. CHECKED RESISTANCE OF HMU TORQUE MOTOR CHANNEL A. ALL CHECKED WITHIN LIMITS. R & R VBV GEAR MOTOR IAW MM 75-31-00 & VBV SENSOR IAW MM 75-31-70 IAW TSM. OPERATIONS & LEAK CHECKED VBV GEAR MOTOR & VBV SENSOR WITH NO DEFECTS NOTED.