What was found
UPON GEAR RETRACTION WE RECEIVED A GEAR DISAGREE L CAUTION MSG FOLLOWED BY A ADC SSEC MISCOMPARE. LEFT GEAR INDICATION DISPLAYED AN AMBER DN. FOLLOWED QRH GUIDANCE AND EXTENDED THE GEAR NORMALLY FOR A RETURN LANDING. HISTORY SHOWED LT UPLOCK SWITCH REPLACED 12/20 & NO RIGGING MENTIONED ON 12/24 POST FERRY MX EVENT. IAW ARES REVIEW ARES SHOWS THE LT MLG UPLOCK SWITCH IS UP & LOCKED FROM POWER ON, ON LT PCB. BUT SHOWS NOT UP & LOCKED ON RT PCB. ONCE GEAR HANDLE PUT IN UP POSITION, A DISAGREE BTWN BOTH PCB'S & STOPS GEAR FROM MOVING ON THAT SIDE. ONCE GEAR HANDLE PUT IN DOWN POSITION, UP & LOCKED SWITCH GOES TO CORRECT POSITION. PERFORMED ANALYSIS OF LIVE VIEW PCB WHILE MANIPULATING HARNESS & SWITCH, NO DEFECTS. PERFORMED SEVERAL GEAR SWINGS, NO FAULTS & NO ABILITY TO DUPLICATE FAULT. PERFORMED RIGGING CHKS OF SWITCH & FOUND LT UPLOCK SWITCH RIGGED INCORRECTLY. PERFORMED WIRING CHK OF SWITCH, NO FAULTS. PERFORMED WIRING CHK BTWN LT UPLOCK SWITCH TO GROUNDS & TO PCB, NO FAULTS. R & R PCB NC106 IAW AMM 24-60-40. OPS CHKD GOOD IAW AMM 24-60-40. R & R LT MLG UPLOCK SWITCH SG007 IAW MM. CONTINUITY CHECK OF NEW SWITCH, NO DEFECTS. PERFORMED MLG UPLOCK ADJUST CHK IAW MM 32-32-00. ADJUSTED LT & RT MLG UPLOCK SWITCH PLUNGERS. PERFORMED 15 MLG OPS CHKS IAW MM 32-00-00, NO DEFECTS. POWER CYCLED ACFT & 5 MLG OPS CHKS IAW MM 32-00-00, NO DEFECTS.