What was found
CORROSION- AFT CARGO DOOR INTERNAL SKIN LOWER SURFACE 14 INCHES FROM THE LWR FWD. CORNER<[01] PERFORMED HFEC HOLE PROBE INSPECTION ON ALL REMOVED FASTENER LOCATIONS AT AFT CARGO DOOR INTERNAL SKIN LOWER SURFACE 14' FROM LOWER FWD. CORNER; IAW NDTM PART 6; 51-00-00; PROCEDURE 16. NO CRACKS.<BR> [NORTEC 600 ; B/C 166317 ; CALIB.DUE- 10/23];[02] COMPLETED GRID OF UT THICKNESSES ON REWORKED AREA AS PER NDTM PART 4; 51-00-00 PROCEDURE 3. MINIMUM FOUND:0.042' [NOTE: CHEM-MILLED AREA]<BR>[DAKOTA ULTRASONICS ZX-6; B/C174231; CALIB.DUE- 12/23] ];[03] DOOR WILL BE REPLACED ON CARD TTG8Q00KN66M;[04] DOOR WILL BE REPLACED ON CARD TTG8Q00KN66M.