As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FITTING, RT CABIN ANTI-VIBRATOR TUNING HAMMER SUPPORT FITTINGS CRACKING IN RADIUS, BOTH FORWARD AND REAR FITTINGS CRACKING AT SAME TIME. THIS CAUSES NOTICEABLE INCREASE IN CABIN VIBRATION LEVELS. FITTINGS NEED LARGER RADIUS MACHINING OR TO BE OF GREATER STRENGTH.