As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LEFT ENGINE FAN VIBRATION INDICATES 3.8 - 4.2 WITH STEADY CLIMB POWER. IAW MAINTENANCE ENGINEERING, COMPLETED FAN BLADE LUBRICATION IAW AMM 72-31-00. REMOVED FAN BLADES AND LUBRICATED. REINSTALLED. OPERATIONAL CHECKS AND VIBRATION OK ON ENGINE RUNS IAW MM 72-31-02.