What was found
AFT FUSELAGE COMPARTMENT. REMOVED REPAIR CHANNEL IAW SRM 51-40-02. FABRICATED NEW REPAIR CHANNEL IAW SRM 53-80-08, REPAIR 3, PG 203, LOCATED CHANNEL IAW SRM 53-80-08. TREATED CHANNEL IAW SRM 51-20-01 AND INSTALLED IAW SRM 51-40-02 AND 53-80-08. REF REO G20134 AND REA 8653-62039. WEB STA 1582 BETWEEN S18R AND S19R, OUTER EDGE OF TS1, REPAIR SIZE 15.7500" X 1", ACFT WAS GROUNDED.