What was found
EN ROUTE THE GREEN HYD QTY WENT TO ZERO IN FLIGHT. DECLARED AN EMER & DIVERTED & LANDED WITHOUT INCIDENT. ACFT WAS TOWED TO THE GATE. CREW USED THE GRAVITY GEAR EXTENSION HANDLE TO EXTEND GEAR. R & R TWO HYD LINES IN THE NR 1 ENG PYLON IAW IPC 29-11-06 ITEM 140, PN D2901005201300 & 220 & PN D2901005201800. ACCOMPLISHED OPERATIONS CHECK IAW AMM 29-00-00-780-006-A & AMM 32-00-00-860-003-A. LG SYS BACK TO NORMAL MODE AFTER FREEFALL. ACCOMPLISHED OPERATIONS CHECK & TEST OF GREEN HYD SYS IAW AMM 29-11-00-710-001-A. NO LEAKS NOTED. NO FAULTS FOUND NR 1 ENG PYLON.