What was found
AFTER TAKEOFF FROM LGA HYDRAULIC SYSTEM 2 FLUID DROPPED TO `0` QUANTITY FOLLOWED BY ENGINE 2 HYDRAULIC PUMP FAILURE AND HYDRAULIC 2 LOW QUANTITY MESSAGE. FOUND LOOSE ENGINE 2 HYDRAULIC PUMP CASE DRAIN HYDRAULIC LINE. TIGHTEN NUT AND PERFORMED ENGINE DRIVEN PUMP INSPECTION CHECK, IAW AMM 29-10-03. SERVICED HYDRAULIC SYSTEM 2 RESERVOIR IAW AMM 12-13-01. BLEED HYDRAULIC 2 SYSTEM IAW AMM 29-00-00. LEAKED AND OPERATIONAL CHECK GOOD IAW MM 29-10-00. AIRCRAFT RETURNED TO SERVICE. (M)