What was found
AIRCRAFT WAS GROUNDED: AFTER LANDING DURING TAXI, THE AIRCRAFT EXPERIENCED A LOSS OF GREEN HYDRAULIC SYSTEM WITH A SUBNSEQUENT LOOS OF NOSE WHEEL STEERING. AIRCRAFT WAS ABLE TO STOP THE AIRCRAFT AT A DEICING PAD. NO EMERGENCY WAS DECLARED. FOUND 4 HYDRAULIC DRESSING FLEXIBLE HOSES ON THE LEFT MAIN LANDING GEAR FOR ALTERNATE BRAKES LEAKING. REPLACED FLEXIBLE HOSE 29, 32, 65, & 66 IAW AMM 32-11-12-00-001A & AMM 32-11-12-400-001-A. ALSO FOUND POWER TRANSFER UNIT HYDRAULIC HOSE LINE 1569GM B-NUT LOOSE & LEAKING AT THE ELBOW. TIGHTENED B-NUT IAW AMM 20-21-12. OPS & LEAK CHECKED GOOD. THE AIRCRAFT WAS RETURNED TO SERVICE.