What was found
MCN - DURING C19 CHECK DISCOVERED THE R1 DOOR, LOWER AFT INNER CHORD REINFORCEMENT FRAME CRACKED, .5 INCHES, AT BS 300 TO BS 328, WL 208 AND BL 58R. MAINTENANCE REMOVED CRACKED REINFORCEMENT FRAME AND FABRICATED REPLACEMENT PART IAW BOEING 737-300 SRM 51-40-02-0G AND DWG 69-69854. INSTALLED FABRICATED REPAIR PARTS AT R1 DOOR LOWER AFT INNER CHORD BS 300 TO BS 328, WL 208 AND BL 58R IAW BOEING 737-300 SRM 51-40-02-0G.