As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON DEPARTURE, NLG WOULD NOT RETRACT. MLG RETRACTED AND LOCKED. CREW EXTENDED LANDING GEAR. ALL THREE GEAR SHOWED DOWN AND LOCKED. AIRCRAFT LANDED UNEVENTFULLY. PLACED AIRCRAFT ON JACKS AND CONFIRMED DISCREPANCY. TROUBLESHOT AND DETERMINED NLG ACTUATOR INTERNAL DOWN LOCK FAILED AND WOULD NOT RELEASE. REPLACED NLG ACTUATOR WITH OVERHAULED UNIT. OPS CHECKED GOOD. (DBCA122D)