As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CAPTAIN CONTACTED DISPATCH ON APPROACH TO SFO WITH A LEFT MAIN GEAR UNSAFE INDICATION. FLIGHT LANDED SAFELY. LEFT MLG RETRACT ACTUATOR PISTON HAD TENSILE FAILURE AT ROD END ATTACHMENT. SUBSEQUENT FREEFALL DAMAGED DOWNLOCK SENSOR. SENSOR REPLACED