As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) DURING REGULAR 100 HOUR INSPECTION AD CF-80-25 COMPLETED AND CRACK FOUND ON LT ELEVATOR IB RIB AT ATTACHMENT BOLT. CRACK WAS LARGER AND MORE VISIBLE ON DOUBLER. REMOVAL OF DOUBLER REVEALED CRACK ON RIB AS WELL. RIB REPLACED AND DOUBLER TOO.