What was found
FLT # 1793 JFK-SJO, DIVERTED TO MCO.DIVERTING TO MCO DUE TO THE LOSS OF THE YELLOW HYDRAULIC PUMP LEVEL AND PRESSURE.1 PRIOR YELLOW HYD SYS LEAK FROM THE #4 SPOILER ON THE 3RD-THE SPOILER WAS REPLACED, PER TSM 05-50-00-810-802-A. NO MX ACTION REQUIRED- NO HARD LANDING REPORTED.