What was found
UPON GEAR RETRACTION GEAR FAILED UPLATCH CHECK, RECYCLED GEAR AND LOST HYDRAULIC FLUID. PERFORMED REQUIRED CHECKLIST AND RETURNED TO OAK. FOUND LT BUNGEE CYL FITTING LEAKING. REMOVED AND REPLACED FITTING AND PACKING, JACKED UP ACFT AND CYCLED GEAR 4 TIMES. UPLOCK, DOWNLOCK, DOORS AND INDICATIONS ALL OPS NOW NORMAL. NO LEAKS NOTED. RAN NR 2 AND NR 3 ENG AND CYCLED ALL FLT CONTROLS SEVERAL TIMES IN ORDER TO BLEED AIR FROM THE SYSTEM. SERVICED RSVR TO FULL LEVEL, OPS NOW NORMAL.