What was found
NR 2 ENGINE LP VIBRATION EXCEEDED 4.0 DURING CLIMB AND ENTERED AMBER CAUTION RANGE. RE-ENTERED NORMAL RANGE DURING DECENT APPROACH AND LANDING. AT FL330 VIBRATION LEVEL REMAINED IN AMBER CAUTION RANGE FOR 5 MINUTES AT CRUISE THRUST SETTING. ENTERED CAUTION RANGE AT FL310 DURING CLIMB. DIVERTED. LANDING UNEVENTFUL. REMOVED FROM SERVICE. W ENGINE VIBRATION CHECK ON NR 2 ENGINE TO VERIFY N1 (LP) VIBRATION LEVELS. REF. LMM SUBTASK 72-00-00-760-041. NR 2 ENG BIB LEVEL DID NOT EXCEED .9 @ NORMAL TAKEOFF POWER POSITION OF THE DAY. THE PARAMETERS LISTED IN THE LOG ENTRY DISCREPANCY MEET THE REQUIREMENTS AS A TRANSIENT VIBRATION EVENT. NO OTHER MAINTENANCE ACTION IS REQUIRED PER MCN E770001-01. RETURNED TO SERVICE.