As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING DESCENT, ELEVATOR TRIM WOULD NOT GO NOSE DOWN. INSPECTED ELEVATOR CONTROL CABLES AND LINKAGE UNDER FLIGHT DECK FLOOR AND APU BAY, NO DEFECTS NOTED. INSPECTED ELEVATOR TRIM ACTUATOR JACKSCREWS AND CHAIN FOUND CONTAMINATED WITH WATER, CLEANED, LUBED. OPS CHECKED GOOD.