What was found
EXTERIOR FUSELAGE SKIN @ AFT CARGO CUTOUT, LOWER AFT CORNER HAS CORROSION. DOT: N072 TIPR833K. GROUNDED - YES. ON DEFERRAL. [ REMOVED CORROSION IAW B737-800 SRM 51-10-02-ORIG THICKNESS 0.090 REMOVED 0.005 REMAINING MAT 0.085 FOUND TO BE IN LIMITS IAW B737-800 SRM 53-00-01 PART 6. TOOL #T8224P CAL DUE 03/NOV/22. ALODINED IAW B737-800 AMM 51-21-41. PRIMED IAW B737-800 AMM 51-21-72. APPLIED TOP COAT IAW B737-800 AMM 51-21-73. REMOVED HAECO DOT, REINSPECT IS REQUIRED EVERY 12,000 FLIGHT CYCLES, EXTERNAL, INTERNAL HFEC AND EXTERNAL DVI IAW B737-800 SRM 53-00-01-1A-6. SEAMC STEVE NOTIFIED, CONTROL #24014508 YELLOW DOT APPLIED.]