What was found
LEVEL 1 CORROSION FOUND ON ALL AILERON, ELEVATOR, AND RUDDER BALANCE WEIGHTS. REMOVED LEVEL 1 CORROSION ON ALL AILERON, ELEVATOR, AND RUDDER BALANCE WEIGHTS IN ACCORDANCE WITH EMBRAER SB 505-55-A004 REV 5 "MASS BALANCE AND ATTACHMENT PARTS -(INSPECTION)"PARTS I,II,III,IV,V,VI". NO FLIGHT CONTROL WEIGHT CHANGES AT THIS TIME.