As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING C-CHECK INSPECTION, FOUND HORIZONTAL STABILIZER JACKSCREW HAD GOUGE ON THREAD ABOUT 11 INCHES FROM LOWER END. JACKSCREW ASSEMBLY WAS REPLACED. STABILIZER TRIM ACTUATOR ASSEMBLY WAS SENT OUT ON R/O 501590675 TO REPAIR VENDOR DELTA AIRLINES INC. REPAIR ORDER IS OPEN AT THIS TIME.