What was found
LANDING GEAR WOULD NOT RETRACT AFTER TAKEOFF. IN SYS 1 OR 2 TROUBLESHOT INTERLOCK SYSTEM. FOR NR 1 AND NR 2 SYSTEMS, FOUND ALL ELECTRICAL FUNCTIONS CHECK GOOD. CHECKS GOOD WITH GROUND ON RECEPTACLE OF PROX BOX AT PINS 44 AND 55. JACKED AIRCRAFT IAW M/M AND FOUND LEFT MAIN LANDING GEAR BOGIE BEAM WILL NOT PIVOT. REMOVED PITCH DAMPER IAW M/M AND BOGIE STILL LOCKED UP. REMOVED ALL 4 BRAKE TORQUE ARMS AND BOGIE STILL LOCKED UP AT CENTER PIVOT POINT. WILL NEED FURTHER DISASSEMBLY TO DETERMINE DAMAGE.