As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PLACED LANDING GEAR LEVER DOWN, HAD LOUD BANG WITH GREENLIGHT ON NOSE GEAR. FOUND RIGHT MAIN LANDING GEAR ACTUATOR LOWER PIVOT PIN SHEARED. REPLACED THE RETRACT PIN AND ACTUATOR. REWORKED THE RIGHT MAIN LANDING GEAR RETRACT PIN BOSS HOLE. OVERSIZED TO REMOVE CORROSION IAW NEA 32130001-003. WORK COMPLETED IAW D832-44721-MR. BOEING COMMERCIAL AIRCRAFT GROUP CONTACTED BY ENGINEERING FOR EVALUATION.