As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFT PIT FLOOR SUPPORT STA 794 TO 827 BL 13.84 HAS CORROSION. GROUNDED - YES. REMOVED DAMAGE FROM AFT PIT FLOOR SUPPORT @ STA 794 TO 827 IAW B737-900ER SRM 53-00-53-1A-2.2.D. ORIG THICKNESS IS .070" IAW B737-900ER SRM 53-60-53-01-2. REMOVED .029", REMAINING .041" AND IS FOUND TO BE OUT OF LIMITS IAW B737-900ER SRM 53-00-53-1A-2.4.B.D. REPAIRED AFT PIT FLOOR SUPPORT STA 794 TO 827 BL 13.84 IAW B737-900ER SRM 53-00-53-2R-3.