What was found
FLT 6685 - LEFT VIB GAUGE WENT TO 1.8 AS WE CLIMBED OUT. RETURNED TO FIELD. PERFORMED ENGINE FAN BLADE LUBE IAW ST 900-1016 ON THE LEFT ENGINE. ALL VIB CHECKS WITHIN LIMITS.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
FLT 6685 - LEFT VIB GAUGE WENT TO 1.8 AS WE CLIMBED OUT. RETURNED TO FIELD. PERFORMED ENGINE FAN BLADE LUBE IAW ST 900-1016 ON THE LEFT ENGINE. ALL VIB CHECKS WITHIN LIMITS.