As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SELECTED LANDING GEAR DOWN, GOT 3 GEAR UNSAFE LIGHTS (RED) FOR 30 SECONDS. THEN CYCLED GEAR SECOND TRY GOT UNSAFE FOR 15 SECONDS FOR NOSE GEAR AND 20 SECONDS FOR MAIN GEAR TO 3 GREEN AND GEAR SAFE. REMOVED AND REPLACED LANDING GEAR CENTRAL VALVE IAW AMM.