What was found
AFTER TAKEOFF AND DURING GEAR RETRACTION WE RECIEVED THE FOLLOWING AMBER INDICATIONS: GEAR CONTROL FAULT, GEAR DOOR OPEN, ADC SSEC MISCOMPARE, AND GEAR DISAGREE N. STARTED WITH GEAR CONTROL FAULT IN THE QRH WHICH REFERRED US TO "LANDING GEAR WILL NOT RETRACT" IN THE QRH. WENT TO THE SECOND STEP AND SELECTED LANDING GEAR DOWN. GEAR INDICATED THREE GREEN AND PROCEDURE COMPLETE. AFTER GEAR HANDLE WAS SELECTED DOWN NO OTHER CAUTION OR ADVISORY LIGHTS REMAINED. REPLACED POWER STEERING CONTROL UNIT IAW AMM 32-50-10. OPS/LEAK CHECK GOOD.