As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING INITIAL CLIMB, A RHYTHMIC VIBRATION IN AIRFRAME WAS FELT. ALSO FELT & NBSP; THROUGH LEVEL OFF AND CRUISE. ACCOMPLISHED CONDITIONAL INSPECTION IAW AMM 05-51-38-201 & SERVICE LETTER 747-SL-02-005-F. NR 4 SPOILER WAS FOUND TO HAVE EXCESSIVE PLAY AND THE RIGHT BODY GEAR STRUT FIXED BRACKET BEARING WAS WORN. THE SPOILER CONTROL PACKAGE WAS REPLACED IAW AMM27-61-05. THE BRACKET WAS ALSO REPLACED IAW AMM 32-14-06. ALL CHECKS WERE NORMAL.