What was found
DURING SCHEDULED INSPECTION AT AERO CORP IN LAKE CITY, FL FOUND LT WING STATION 383 L/E SPAR AT NR 4 SLAT FORWARD OF ACTUATOR ROD CORRODED APPROXIMATELY 18 INCHES IN LENGTH. MECH REMOVED CORROSION AT LEFT WING L/E SPAR IAW SRM 51-10-6. REMOVED AT .058 18 INCHES LONG ORIGINAL THICKNESS .0240 MAX ALLOWABLE .012 OUT OF LIMITS IAW SRM 57-10-1. FLAP PEENED AREAS IAW B727 SOP 20-10-3. TREATED AND PRIMED IAW SRM 51-10-2 AND MM 51-20-11.