What was found
CORROSION ON AFT CARGO DOOR CUT-OUT LWR-CENTER SEAL REST, PN 170-85251-401, UNDER 1ST NUT PLATE FROM FRONT OF SEAL REST, APPROX. 4 IN FROM THE FRONT, X= 20108.6, STR 27. R & R LWR/CENTER SEAL REST IAW SRM 51-41-01 AND 51-43-01 ON WO 551823-117 IAW COMPASS EO E175-53MR-107, REV 1, WO 622384.