As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DIVERSION -- NR 2 ENG N1 FLUCUATES +/- 3.5 TO 4.0% NR 1 ENG VIB. CLIMBS TO 3 - 5 ALONG WITH THE N1 CHANGES. N1 AND VIB. WILL STABILIZE FOR PERIODS OF 5 TO 10 MINUTES BEFORE IT BEGINS THE CHANGES AGAIN. REMOVED AND REPLACED NR 1 ENG FUEL PUMP AND MAIN FWD CONTROL PER M/M.