As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) DURING A ROUTINE AIRFRAME INSPECTION A SMALL CRACK WAS FOUND NEAR THE LOWER FORWARD RADIUS OF R/H DOUBLER ON THE REAR HORN. REMOVING THE DOUBLERS EXPOSED A CRACK ON EACH SIDE OF THE REAR HORN IN THE LOWER FORWARD RADIUS. FLEET INSPECTION REVEALED TWO ADDITIONAL RUDDERS HAD SMALL CRACKS IN THE LOWER FORWARD RADIUS OF THE REAR HORN. (NO CRACKS IN THE DOUBLERS) (TC# 20190806002)