What was found
DURING HEAVY MAINTENANCE, CORROSSION LOCATED RIB 10 LOWER SURFACE TE RH WING OVERHANG, RIB14 LOWER SURFACE TE RH WINGWING OVERHANG, RIB14 +16"" LOWER SURFACE TE RH WING OVERHANG; REF AEROMAN NR 2021-339164, 2021-339165, 2021-339167 WO 2021 199/1. REF JB EC A21-904-01. ACCOMPLISHED