As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT 1216 SFO-JFK (ETOPS). DURING CLIMB OUT PASSING 3,500 ENG2 N2 VIB WENT FROM 1.0 - 4.9 MOMENTARILY THEN BACK TO 1.0 NO ECAM HAS HISTORY.; PERFORMED TROUBLESHOOTING OF THE ENG AFTER A HIGH (N2) VIB EVENT IAW TSM 71-00-00-810-873-A, NO DEFECTS FOUND FOR CONFIRMATION. ALSO PERFORMED A VIB SURVEY HIGH POWER RUN RESULTING (N2) VIB AT 0.9 IAW AMM 71-00-00-700-802 A/C OK FOR SVC.