What was found
BAG DOOR DOUBLER P/N 170-671115-001, BETWEEN 13" AND 26" FORWARD OF FRAME 27 LARGE AREA OF CORROSION ON BOTH SIDES OF THE CLOSE OUT PANEL, AS MARKED. C-CHECK RO 10/31/2020. REMOVED AND REPLACED BAG DOOR DOUBLER P/N 170-67115-002 (PART NUMBER IN THE WRITE UP IS INCORRECT) BETWEEN 13" AND 26" FORWARD OF FRAME 27. PART WAS REPLACED WITH A FACTORY PART, NO SIGNIFICANT CHANGE TO WEIGHT AND BALANCE, REF EMB175 SRM.