As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
JFK - FLT 4812 - LEFT MAIN LANDING GEAR WOULD NOT LOCK DOWN. NOTICED LOSS OF HYD FLUID QTY/PERSS ON INDICATOR. MAIN HYDRAULIC ACCUMULATOR PRESSURE ALSO DOWN. REMOVED AND REPLACED FAILED HYDRAULIC FLEX-LINE AT THE MAIN LANDING GEAR DOWNLOCK ACTUATOR. SERVICED HYDRAULIC SYSTEM. PERFORMED EXTENSION, RETRACTION AND LEAK CHECKS AND RETURNED AIRCRAFT TO SERVICE. (M)