What was found
MCP MODE SELECTOR SWITCH LIGHTS ILLUMINATION WHEN SELECTED VERY DIM. ACFT GROUNDED. REMOVED & REPLACED MCP PANEL, REF B737-800 AMM 22-11-34. INSTALLATION TEST PASSED. ACCOMPLISHED ADDITIONAL TESTING, DFCS LRU INTERFACE TEST FOR MCP NR 32, 49 LAND VERIFY TEST, & HGS SENSOR TEST FOR FCC/AT, IAW AMM 22-00-01 & SMM 34-36-00. A/C REMAINS CATIIIA AUTOLAND & HGS QUALIFIED, STATUS SCREW REFLECT SAME.