As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
BACK SEAT CREW MEMBERS REPORTED VIBRATION IN AIRFRAME DURING TAKEOFF AND LANDING. INSPECTION OF PYLON MOUNT REVEALED LT AFT LINK HAD PLAY AND RUBBER EXTRUDING FROM UPPER BEARING. REPLACED LINK AND OPERATIONAL CHECK SHOWS VIBRATIONS FROM PREVIOUS FLIGHT MISSING. SUBMITTER STATED THIS IS A COMMON AND TYPICAL PROBLEM THAT ONLY REQUIRES GOOD VISUAL INSPECTION.