What was found
PROMINENT VIBRATION ON TAKEOFF UNTIL FIRST POWER REDUCTION. CREW TOLD LOCAL MECH VIBS ON ENG 2 WERE 2.8 AND ENG 1 WAS 2.4 AND THOUGHT VIB FELT WAS FROM RT ENG. CHECK INLET AND EXH AND MAIN CHIP DETECTORS OF BOTH ENG'S. CHECK FOR ANY LOOSE VIB SENSORS OR CONNECTIONS. RUN ENG'S AND REF JRH FOR VIB GUIDELINES FOR GROUND OPERATIONS. ACCOMPLISHED FAN BLADE LUBE ON NR2 ENG RAN ENG'S IAW JRH, BOTH ENG VIBS WITHIN LIMITS.