As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFT PIT FLOOR SUPPORT JUST AFT OF STA 767 LBL3 HAS CORROSION AROUND NUTPLATE HOLES. GROUNDED - YES. REMOVED CORROSION .0RIG .063, REMAIN 0 LOSS OF .063.FOUND OUT OF LIMITS IAW B737-900ER SRM 53-00-53.ACCOMPLISHED REPAIR IAW B737-900ER SRM 53-00-53-2R-2.ALODINED IAW B737 900ER SRM 51-20-01.PRIMED IAW SOPM 20-41-02.