What was found
FLT NR 3003 - A/C RETURNED TO FIELD WHEN CREW WAS ALERTED TO AN UNSAFE GEAR CONDITION, BOTH LT AND RT MLG. A/C LANDED COS WITHOUT FURTHER INCIDENT. COS MAINTENANCE CLEANED AND LUBRICATED BOTH LT AND RT MLG UPLOCK ROLLER ASSEMBLIES AND RELEASED AIRCRAFT FOR A FUNCTION TEST FLIGHT. RESULTS OF FUNCTION TEST FLIGHT WERE UNSATISFACTORY. AIRCRAFT WAS RETURNED TO MAX HANGAR WHERE ICE ACCUMULATION WAS ALLOWED TO THAW. ROLLERS WERE CLEANED AND LUBRICATED. GROUND OPERATIONAL CHECK OF THE LANDING GEAR WAS CONDUCTED WITH SATISFACTORY RESULTS. (M)