As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
GEAR DISAGREE, LEFT LANDING GEAR DID NOT GO DOWN. UPLOCK ROLLER PIN FOUND SEIZED, IT WAS LUBRICATED AND TESTED IAW AMM 32-30-00. CREW EXTENDED THE GEAR MANUALLY. ACCORDING TO EXPLANATION THIS PROBLEM IS KNOWN TO HAVE OCCURRED IN THE PAST.