What was found
AFTER TAKEOFF, NOSE GEAR WOULD NOT RETRACT. MAIN GEAR RETRACTED & GEAR DOORS REMAINED OPEN. JACKED ACFT, CLEARED ALL FAULTS. CYCLED GEAR SEVERAL TIMES, RT BRAKE & RT STEERING INDICATORS RED. DOWNLOADED FAULTS & FOUND FAULT CODE 433 TO COME BACK CONSISTENTLY. JACKED NOSE UP & DOWN MULTIPLE TIMES TO ENSURE FULL STRUT EXTENSION EACH TIME, STRUT EXTENDED TO 284 MM EACH TIME. REMOVED MLG CONTROL PCB & FOUND SIGNS OF OVERHEATING. TROUBLESHOT THE LANDING GEAR CONTROL PCB FOUND SEVERAL VOLTAGES READING INCORRECT THAT INCLUDED OUTPUT SIGNALS. INSTALLED NEW MLG PCB 10GW, PERFORMED TROUBLESHOOTING PROCEDURE & FOUND ALL VOLTAGES TO BE READING CORRECT. PERFORMED FUNCTIONAL CHECK OF EXTENSION & RETRACTION OF MLG & DOORS WITH NO DEFECTS NOTED. ALIGNED IRS'S & RESET INDICATORS, NO LT & RT RED BRAKE INDICATIONS NOTED. LT & RT BSCU OPS CHECKED GOOD. SWUNG GEAR MULTIPLE TIMES & ALL MLG FUNCTIONS ARE NORMAL.