As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LAS - FLT 739 - PILOT REPORTED, THAT EN ROUTE TO LAS THE LEFT HYDRAULIC SYSTEM LOST ALL FLUID AND THE LOW PRESSURE LIGHT ILLUMINATED. LEFT HAND PRESSURE LIGHT ILLUMINATED. LEFT HAND PRESSURE SWITCH IN LEFT HAND PYLON HAS BROKEN LINE. REPLACED WITH NEW LINE. LEAK CHECK GOOD. (M)