What was found
WHILE PERFORMING A 100-HOUR INSPECTION, 4 CRACKS WERE FOUND IN THE TAIL BOOM PER ASB 206L-8447, REV C. THESE CRACKS WERE NOT VISIBLE FROM THE OUTSIDE. HOWEVER, DUE TO THE PREVIOUS CRACKS, INSPECTED THIS TAIL BOOM FROM THE INSIDE. THESE CRACKS WERE FROM THE RIVET HOLES ON THE TWO FRONT TAIL ROTOR DRIVESHAFT COVER CLIPS.