As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
NOSE GEAR CYCLE - HEARD AND FELT A THUMP, NO LIGHTS. FOUND UPLOCK ROLLERS STIFF TO TURN AND LEFT MLG UPLOCK HOOK WAS STIFF AND WOULD NOT SEAT THE ROLLER EVERY TIME. CLEANED AND LUBED ROLLERS AND UPLOCK HOOK. ADJUSTED BOTH MLG UPLOCK SWITCHES. ALL UPLOCK HOOKS ARE MAKING FULL ENGAGEMENT. OPS CHECKED GOOD ON SEVERAL GEAR SWINGS IAW 750 MM CHAPT 32-30-05.