What was found
CREW OXYGEN SYSTEM LOW. O2 SYS SERVICED TO1550 PSI. 2 HOURS 40 MINUTES INTO FLT PRESSURE 1370. SUSPECT SYS LEAK, FOUND O2 LINE FROM LT SIDE TEE FITTING LEAKING AT CAPTAIN`S O2 BOX, LINE HAD BADLY CRUSHED WASHER, R & R LINE, SERVICED O2 TO 1900 PSI AND O2 HELD TO 1880 WITH SYS PRESSURIZED. NO FURTHER FAULTS FOUND.