As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
UNABLE TO RETRACT L MLG, RTFL L MLG EXTENSION RETRACTION LINE LEAKING HYDRAULIC FLUID. REPLACED LINE LEAK CHECK OK WITH LANDING GEAR DOWN AND LOCKED GEAR PINNED AND HANDLE CYCLED. NEED TO JACK AND SWING LANDING GEAR AND CHECK FOR LEAKS IN LT MLG. ACCOMPLISHED GEAR RETRACTION AND EXTENSION, FOUND OPERATION NORMAL.