What was found
* EXTERNAL FUSELAGE SKIN LOWER CENTER AREA APPROX. FS 559.00 + 16 HAS CORROSION AROUND DRAIN HOLES AND RIVETS. ( MARKED ) (C-CHECK) RO 8/28/2020 REMOVED CORROSION AT EXTERNAL FUSELAGE SKIN LOWER CENTER AREA FS 559.00+16 AROUND DRAIN HOLES AND RIVETS. REF: CRJ-200 SRM. ORIGINAL THICKNESS OF SKIN AT FS 559+16 IS .063" MILLED TO .058" + OR - .002" FOR A NOMINAL .056" REF CRJ 200 SRM, AMOUNT REMAINING IS .054" REF NDT, REMOVED .002" , BUT NO DAMAGE ALLOWED THIS AREA THEREFORE OUT OF LIMITS OF CRJ 200 SRM. COMPLIED WITH MHIRJ REO. PERFORMED PRESSURE CHECK OF REPAIRED AREA REF. CRJ 200 AMM. CHECK GOOD.