As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(AUS) ON DESCENT, LANDING GEAR WAS SELECTED DOWN AND DOOR WARNING LIGHT INDICATED UNSAFE. MANUAL EXTENSION CARRIED OUT PER EMERGENCY PROCEDURES AND AIRCRAFT MADE UNEVENTFUL LANDING. INVESTIGATION FOUND THAT THE MLG CONTROL VALVE WAS NOT RIGGED CORRECTLY.