As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFT FUSELAGE INTERNAL STRUCTURE BELOW FLOOR FRAME AT FS863.0 BETWEEN STGR 26 L/H AND STGR 26 R/H HAS CORROSION. (C-CHECK RO 5/20/2021) COMPLIED WITH FRAME SPLICE REF MHIRJ REO 670-53-51-210 REV -- DATED 2021-04-26. COMPLIED WITH ALL STEPS OF REO,COMPLIED WITH SKYWEST TASK CARD 51-900-1002-SKY.