As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON APPROACH, THE LG WOULD NOT EXTEND NORMALLY. THE LT MLG UNLOCK LIGHT REMAINED ILLUMINATED. THE CREW PERFORMED THE EMER LG GRAVITY EXTENSION PROCEDURE IAW THE QRH & THE PROCEDURE WAS SUCCESSFUL. DID NOT DECLARE AN EMER. TROUBLE SHOT & REPLACED THE LT MAIN ACTUATOR. OPERATIONS CHECKED GOOD. ACFT RETURNED TO SERVICE.