What was found
"FUSELAGE SKIN IS CORRODED UNDER AFT CARGO DOOR PROTECTOR PLATE BETWEEN F.S. 1031 TO F.S. 1051. REMOVED CORROSION IN FUSELAGE SKIN UNDER AFT CARGO DOOR PROTECTOR PLATE, STRG 19L BETWEEN FS. 1031.0 TO FS. 1051.0, IAW CRJ900 SRM 51-21-06-001-001-A01. ORIGINAL THICKNESS IS 0.150"" WITH A 0.009"" MATERIAL LOSS AND A REMAINING THICKNESS IS 0.141"" ON FUSELAGE SKIN, MAX DEPTH ALLOWED IS 0.025"" FOUND TO BE WITHIN LIMITS IAW CRJ900 SRM 53-61-01-101-002-A02. "