As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SOUND & VIBRATION OCCURED FOR A FEW SECONDS DURING CLIMB AT 10K FT, NOISE HEARD AT DOORS L1, 2, AND R2. LOW RUMBLING SOUND AND VIBRATION. DISSIPATED THEN HEARD AGAIN IN CRUISE ROW 8-10 UNDER FLOORBOARD. IAW AMM 05-51-38-201 AIRFRAME VIBRATION CONDITIONAL INSPECTION. FOUND DAMAGE TO RT PACK RAM AIR INLET DUCT AND PRECOOLER WITH DAMAGE.