What was found
DURING C18 CHECK DISCOVERED ANGLE CRACKED, .375 INCHES IN LENGTH, AT FORWARD UPPER CORNER OF THE R1 DOOR, CUTOUT. MAINTENANCE CUT OUT CRACKED AREA OF FRAME ANGLE IAW BOEING 737-300 SRM 51-70-11-0. FABRICATED FILLER AND DOUBLER IAW BOEING 737-300 SRM 51-70-11-0. INSTALLED FABRICATED REPAIR PARTS AT FORWARD UPPER CORNER OF THE R1 DOOR, CUTOUT, IAW BOEING 737-300 SRM 51-70-11-0 FIG. 1.