As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) DURING A PHASE 3 INSPECTION, A CRACK WAS FOUND ON THE LT HORIZONTAL STABILIZER UPPER SURFACE. THERE WAS OIL CANNING ON THE UPPER SKIN, NEAR THE CRACK WHICH INDICATE PROBABLE DAMAGE AT THE RIB. DURING REPAIR, NO RIB WERE FOUND DAMAGED BUT ON SKIN STIFFENER HAVE BEEN REPAIRED IAW WITH SRM. AS PRECAUTIONNARY THE COMPANY HAS INITIATED A FLEET INSPECTION OF OTHER ACFT AS A RESULT OF THIS FINDING.