What was found
HORIZONTAL STAB VISUAL INSPECTION, FOUND HAND ETCHED MARKING AT TOP OF JACKSCEW, FOUND ADDITONAL ETCHING ON SECOND THREAD DOWN, FOUND SCRATCH ON CREST OF JACKSCREW THREAD NEAR TOP OF JACKSCREW. DAMAGE FROM ETCHING & BALLSCREW FOUND PAINTED WITH PRIMER. STAB TRIM BALLSCREW ACTUATOR REMOVED FROM ACFT IAW AMM 27-41-10-024-001. STAB TRIM BALLSCREW ACTUATOR INSTALLED IAW AMM 27-41-10-404-041 TO & INCLUDING STEP 3. H. (3). (C). CONTINUE INSTALLATION FROM 3. H. (3). (D). STAB BALLSCREW ACTUATOR INSTALLATION CONTINUED IAW AMM TASK 27-41-10-404-041 FROM STEP H.3.(D) TO STEP H.9. STAB TRIM ACTUATOR LEAK & OPS CHKS COMPLETED IAW AMM 27-41-10-404-041, STEP H,10 TO COMPLETION. NO LEAKS & FUNCTIONAL TESTS PASSED.