As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER TAKEOFF WHEN THE GEAR HANDLE WAS PLACED UP ALL THREE GREEN LIGHTS EXTINGUISHED. ALOUD METALLIC GRINDING TYPE NOISE WAS NOTED AFTER SEVERAL SECONDS 10-15 THE NOISE STOPPED AND THE GREEN LIGHT FOR THE NOSE GEAR ILLUMINATED. AT THIS TIME THE GEAR HANDLE WAS UP TH NOSE GEAR INDICATED DOWN, THE LT & RT MAIN GEAR DOORS WERE OPEN. WHEN THE GEAR HANDLE WAS PLACED DOWN NO ACTIVITY WAS NOTED VISUALLY OR NOISE BY THE GEAR, APPROX. 45-75 SECONDS LATER THE LT & RT MAIN GEAR DOWN LOCK GREEN LIGHTS ILLUMINATED AND THE RED DOOR LIGHTS EXTINGUISHED.