What was found
DURING ROUTINE MAINTENANCE VISIT WHILE PERFORMING AN A-4 INSPECTION, LEFT ELEVATOR HORN UPPER SKIN WAS FOUND TO HAVE 3 RIVET HOLES OVERSIZED AT STATION YH145.80. LEFT ELEVATOR HORN SKIN WAS REPAIRED IN ACCORDANCE WITH DER 8110-3 FORM FROM CALLAHAN AIRCRAFT SERVICES IDENTIFICATION NUMBER CAS-AAL111. LEFT ELEVATOR BALLANCE CHECKED IN ACCORDANCE WITH DEHAVILLAND DASH 8 STRUCTURAL REPAIR MANUAL. AIRCRAFT RETURNED TO SERVICE.