As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LEFT ENGINE VIBRATION 5.0 DURING CRUISE. PERFORMED A LT ENG N1 VIBRATION ELEC WIRING & CONNECTOR CHECK, CLEANED. PERFORMED A LT ENGINE VIBRATION SURVEY MAX N1 VIB 1.9 UNITS AT N1 85%. OK FOR SERVICE IAW AMM 77-31-00-715 AND AMM 71-00-00.