What was found
AIRCRAFT RETURNED TO PLATFORM, PSEU AND OVERHEAD LIGHTS TURNED ON IN UPPER PANEL. BITE TO PROXIMITY UNIT SWITCH WAS PERFORMED SHOWING STAB TRIM DISAGREE FAILURE CODE. STABILIZER WAS COMPLETELY DEPLOYED AND CONFIGURED AGAIN IN TAKEOFF MODE TURNING OFF THE LIGHT AND TESTED CORRECT IAW FIM 32-09 TASK 816. DURING OVERNIGHT SERVICE, TEST WAS PERFORMED IAW FIM 32-09 TASK 801, ALL CORRECT.