What was found
DURING ROUTINE B-CHECK, INSP FOUND CORROSION ON FUSELAGE SKIN AT STA 73 LONGERON 31 RT. REMOVED FASTENERS AS NEEDED TO PERFORM REPAIR. REMOVED CORRODED SKIN. FABRICATED NEW SKIN. CLEANED, TREATED, PRIMED AREA AND REPAIR PARTS. INSTALLED NEW FASTENERS AND REPAIR PARTS IAW SRM 53-2-1 FIG 7 SHEETS 15, SRM 53-2-2 FIG 4B.