What was found
#2 ENGINE TREND DATA STILL SHOWS ELEVATED LOW PRESSURE ROTOR VIBRATION LEVELS AFTER LAST FAN LUBE AND 2 FAN TRIM BALANCE PROCEDURES. GROUNDED - YES. C/W STEPS 1-7 WHILE PERFORMING VIBE SURVEY FOUND VIBRATIONS OUT OF LIMITS, PERFORMED TRIM BALANCE VIBES STILL OUT OF LIMITS REF T/C 78472010.ACCOMPLISHED FAN BLADE MAP AND RE-ACCOMPLISHED T/CARD 78472010 SPINNER CONE/AVM WEIGHTS MOVED BACK TO ALL 7 OR 14 REF 71-00-00-750-808-FOO TEST 7 VIB SURVEY STILL NEEDED AND TEST 14B IF NEEDED AFTER TEST 7 .PERFORMED TEST 7 VIB SUREVY ON #2 ENGINE VIBES WERE OUT OF LIMITS AND NEED TEST 14B PER AMM 71-00-00 .RETRIEVED WEIGHT SOLUTION FROM AVM AND PERFORMED TEST 7 VIB SURVEY VIB LEVEL IS WITHIN LIMITS REF AMM 71-00-00