As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
HORIZONTAL STABILIZER RIB LOCATION BORESCOPE INSPECTION TASK 55-10-01-290, DURING THE INSPECTIONS MULTIPLE CRACKS WERE FOUND THROUGHOUT THE HORIZONTAL STABILIZER. CRACKS WERE FOUND IN THE RT STABILIZER ON RIBS NR 4 & NR 6 AND ONE RIB CRACKED OTBD OF TRIM ACTUATOR. CRACKS WERE ALSO FOUND ON THE LT STABILIZER RIBS NR 2, NR 3, NR 4, & NR 5 ON CENTER STRINGER WITH ONE CRACKED RIB ON THE FIRST RIB OTBD OF THE TRIM ACTUATOR.