What was found
GEAR SELECTED UP, INDICATED RETRACTED BUT NOSE GEAR LIGHT SHOWED GEAR DOORS OPEN. MODERATE NOISE AND VIBRATION FELT. MASTER CAUTION NR 2 ENGINE HYDRAULIC PUMP ILLUMINATED SHORTLY THERE AFTER. NR 2 HYDRAULIC PUMP SHOWED ZERO PSI AFTER 5 MINUTES, NR 2 ENGINE HYDRAULIC PUMP CAUTION LIGHT EXTINGUISHED AND PRESSURE INDICATED NORMAL. UPON SELECTING GEAR DOWN, GEAR EXTENDED NORMALLY AND GEAR DOOR LIGHT INDICATED NORMAL. BLED NR 2 HYDRAULIC SYSTEM AND RUDDER ACTUATORS AND NR 2 RESERVOIR. NO PARTS REPLACED. OPERATIONAL CHECKS GOOD. AIRCRAFT RETURNED TO SERVICE.