What was found
UNABLE TO RETRACT LANDING GEAR ON TAKEOFF. SWITCHED TO SYSTEM TWO BUT WAS STILL UNABLE TO RETRACT GEAR. PITCH TRIM ONE NUMBER 2 CLICKED OFF AND WOULD NOT RESET. AERONAUTICAL TELECOMMUNICATIONS SYSTEM SWITCHED OFF AND WOULD NOT RESET. BOTH FLIGHT DIRECTORS SWITCHED OFF AND WOULD NOT RESET. REPLACED PROXIMITY BOX AND PERFORMED BITE TEST WITH NO FAULTS NOTED. REPLACED NOSE LANDING GEAR PROXIMITY SWITCHES 55GB AND 82GB AND ADJUSTED PER MM 32-00-00-4. SYSTEM GROUND CHECKED NORMAL OPERATION. (CLOSED)