As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING A ROUTINE MAINTENANCE C-CHECK, CRACKS WERE FOUND ON THE LEFT SIDE OF THE VERTICAL STABILIZER CHINE ANGLE BETWEEN STA 16128.0 AND STA 16144.9 AT 3 WORKING RIVETS. POSSIBLE CAUSE. FATIGUE/VIBRATION. SUBMITER RECOMMENDED A DETAILED INSPECTION CALL OUT DURING C-CHECK. (X)