As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT 3850, WHILE PERFORMING OPS CHECKS AND LUBE OF THE THS JACKSCREW, FOUND THE UPPER BALLNUT OF JACKSCREW INSTALLED 180 DEGREES IN WRONG DIRECTION. ACCORDING TO AMM ZERK FITTING NEEDS TO FACE THE ACCESS DOOR. CORRECTIVE ACTION: REPOSITIONED THE UPPER BALLNUT FITTING OF JACKSCREW IAW B737 AMM 27-41-81-400-801 STEP I. (1)(K) TEST IS GOOD IAW B737 AMM 27-41-00-700-801. (LP 0639210)