As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) THE HORIZONTAL STABILIZER WAS REMOVED FOR ROUTINE MAINTENANCE. UPON INSPECTION OF THE LT AND RT NR 1 LEADING EDGE RIBS IT WAS NOTED THAT THE LT RIB WAS CRACKED ALONG LOWER FORWARD RADIUS FOR APPROXIMATELY TWO INCHES. THIS AREA IS DIFFICULT TO INSPECT WITH HORIZONTAL STABILIZER INSTALLED AS THE NR 1 RIB IS IN CLOSE PROXIMITY TO THE AIRCRAFT EMPENAGE AND BEHIND AN AIR SEAL.