What was found
DURING HEAVY MAINTENANCE, CORROSION ON SHEAR TIE LOCATED FR 86 BETWEEN STR 27R TO STR 28R ON AFT CARGO COMPARTMENT. RESOLVED ON W/O: 1072873 TASKCARD: NR-00011, REF ARM N/R 2020-317456 W/O 2020-348/1 TECH 8627612 RII QC163. REMOVED AND REPLACED SHEAR TIE AND FASTENERS LOCATED FRAME 86 BETWEEN STR 27R TO STR 28R, IAW E190 SRM 51-40-08 AND DRAWING 170-65180-433.