As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MCP HEADING SELECT WINDOW LEFT AND CENTER DIGITS HAVE CONSTANTLY ILLUMINATED SECTIONS THAT MAKE IT DIFFICULT TO READ ACCURATELY. GROUNDED - YES. VERIFIED DEFECT, REMOVED & REPLACED MCP AND PERFORMED INSTALLATION TEST GOOD AND PERFORMED REQUIRES LLM TEST PASSED AMM 22-11-34/401.