As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ETOPS SIGNIFICANT SYSTEM: ENGINE NR 2 VIBRATION INDICATOR FLUCTUATES OCCASIONALLY FROM 0 TO 4.5 AND BACK. REPLACED VIB COMPUTER IAW AMM 77-31-03 ENG RUN UP ACCOMPLISHED. FAULT DID NOT DUPLICATE ON GROUND. ACTION CLEARS DMI 8088 M/C NOTIFIED. PLACARD REMOVED. OPS GOOD IAW AMM 77-31-00.