As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ETOPS - ENG #2 N1/N2Q/N3 VIBRATION INDICATIONS SHOWED AMBER X DURING CRUISE FOR 30 MINUTES AND RETURNED TO NORMAL SEE#956302/956301. REMOVED AND REPLACED RCC PER AMM 77-32-13 AFTER CONFIRMING FAULT PER TSM 73-25-81-810-916-A. OPS CHECK GOOD.