What was found
TUC - AIR TURN BACK - FLT 0662 - AFTER TAKEOFF FROM TUC EN ROUTE TO PHX THE RIGHT MAIN LANDING GEAR DID NOT RETRACT ON DEPARTURE, TURNED BACK AND LANDED SAFELY AT TUC. MAINTENANCE TROUBLESHOT RETRACTION PROBLEM PER BMM 32-32-00 PG. 101; CYCLED LANDING GEAR FOR 30 MINUTES, COULD NOT DUPLICATE PROBLEM. PERFORMED THERMAL CHECK OF BOTH L/H AND R/H LANDING GEAR ACTUATORS, BOTH WERE THE SAME. PERFORMED PRESSURE CHECK OF R/H MAIN LANDING GEAR DOWNLOCK ACTUATOR, PRESSURE WAS GOOD, WITH PRESSURE GOOD TROUBLESHOOTING CHART RECOMMENDED REPLACEMENT OF R/H MLG DOWNLOCK ACTUATOR. REPLACED ACTUATOR IAW T/C R4M32010, OPERATIONAL AND LEAK CHECK WAS GOOD. **SUPPLEMENTAL** SDR WILL BE SUBMITTED UPON RECEIPT OF VENDOR BENCH TEST R