As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LOWER FUSELAGE SKIN HAD THREE BILGE DRAIN VALVES CRACKED BS 420, 500A & 500G. R & R THE THREE BILGE DRAIN VALVES IAW AMM 53-31-03-000-801 AND AMM 53-31-03-400-801. ACCOMPLISHED CABIN PRESSURE LEAK TEST IAW TASK CARD 821-PRD-01-01 (TTG8Q00MBMAW). NO LEAKS NOTED.