As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFT GALLEY FLOOR STRUCTURE BETWEEN STA 1016 AND AFT PRESSURE BULKHEAD HAS CORROSION IN MULITPLE AREAS. GROUNDED - YES. REMOVED DAMAGE FOUND TO BE OUT OF LIMITS IAW B737-900 SRM 53-70-51-1A-1, REMVOED AND REPLACED IAW B737-900 SRM 51-40-02-0G-0W= 1" O= .010 R= .050 L= 1' D= .020.