What was found
MAIN CABIN , CREASE BEAM, INBD CHORD BS 391, RBL 58, THERE IS A MISDRILLED HOLE, AND BS 430-418 HAS CORROSION RT. REMOVED AND REPLACED CREASE BEAM, INBD CHORD, RBL 58, STA 297-395 IAW SRM 51-40-02. FOUND CORROSION OUT OF LIMITS IAW SRM 53-10-15, L=9.0", W=1.5", D=.018". FABRICATED NEW CREASE BEAM ON MAE TRAVELER NR T8/760162. INSTALLED NEW CREASE BEAM, BS 297-395, RBL 58, IAW SRM 51-40-02. THIS REPAIR IS CLASSIFIED AS A CATEGORY "A" MAJOR REPAIR. AT BS 418-430, RBL 58, NO CORROSION WAS NOTED AFTER AREA WAS CLEANED.