What was found
DISCREPANCY: REFERENCE LOG PAGE LP1149776 ITEM 1, IN FLIGHT AT CRUISE FL360, "HYD G RSVR LO LVL". PERFORMED MANUAL GEAR EXTENSION FOR LANDING. CORRECTIVE ACTION: REPLACED THE DRAIN VALVE, GREEN HYDRAULIC RESEVOIR, REFERENCE AMM 29-11-41-000-004-A AND 29-11-41-400-004-A. LEAK CHECKED OK. TORQUE WRENCH S/N F9TAB3947C DUE 10/19. RE-SET THE GRAVITY GEAR EXTENSION REFERENCE AMM 32-33-00-710-001-A./END/