What was found
DURING OP 16 MAINT CHECK, FRAME STA 945 LT WAS CRACKED AT LONGERON 12L. REPLACED FRAME SECTION (P/N 9957739-127) PER SPM 6-70-1, PARA 4 PAGE 2 AND 3 AND REF DOUGLAS DRAWING 995739. WORKED IN CONJUNCTION WITH MO 72J14 PHASE G, REF DWG JO60119.