What was found
DURING OP 16 MAINT CHECK, FOUND CORROSION ON LOWER AFT CORNER OF DOOR FRAME AND CABIN FLOOR WEB, APPROX STA 195 TO 204, LBL 59 IN. CUT OUT CORRODED SECTION PER SPM 6-80-01. REPLACED CUSP PER ARA 16316 FROM MIDDLE OF ENTRY DOOR TO STA 229. REPLACED MEMBRANE.