What was found
UPON A SCHEDULED INSPECTION AT AERO CORP IN LAKE CITY, FLORIDA, EVIDENCE OF CORROSION WAS FOUND ON THE TCAS ANTENNA AFT SIDE. REMOVED MOUNTING PLATE AND FINGER DOUBLERS. FABRICATED A NEW PLATE AND FINGER DOUBLERS AND INSTALLED ALL PARTS IAW DC9 SRM 53-04 FIG 12B. (M)