As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON INTERIM INSPECTION, FOUND BULGING SKIN AND BENT HAT CHANNELS IN THE WHEELWELL LOWER NACELLE TANK LINER. INSPECTION FOUND BAD PRESSURE RELIEF VALVE. REPLACED LINER AND HAT CHANNELS. REPLACED BOTH RELIEF VALVES. SUGGEST 600-HOUR INSPECTION ON VALVES.