What was found
*R/H WING LOWER AFT SKIN PLANK MATING SURFACE FOR MLG FAIRING AT RBL45 CHAFED (MARKED). (C-CHECK) RO:1/17/2020THE CHAFE ON THE LOWER WING PLANK AT RBL45 WAS BLENDED. NDT MEASURED THE REMAINING MATERIAL THICKNESS AT 0.255Ï¿½. MATERIAL LOSS WAS 0.045Ï¿½. MAXIMUM ALLOWABLE LOSS IS 0.040Ï¿½. OUT OF LIMITS AND SUBMITTED TO ENGINEERING. REO WAS ISSUED. SUBJECT CONDITION WAS STRUCTURALLY ACCEPTABLE AS IT. THE REWORKED AREA WAS ROTO PEENED, AND THE FINISH WAS RESTORED. THE SELF-CONTOURING PAD ON THE BODY FAIRING WAS REPAIRED TO AVOID THE CHAFING CONDITION. COMPLIED WITH SKYWEST TASK CARD.