As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFT PIT FLOOR TRANSITION PANEL RT SIDE BETWEEN STA 727I&J- STA 767 HAVE CORROSION AROUND FASTENER HOLES. GROUNDED-YES. REMOVED CORROSION ORG THICKNESS .040, PER B737-900ER SRM 53-60-53-01-2. REMOVED .005 MATERIAL OUT OF LIMITS, PER B737-900ER 53-00-53-1A-2. REMOVED, FABRICATED AND INSTALLED PER B737-900ER SRM 53-00-53-2R-5.