As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
BACKGROUND AND DIGITS ARE FAILING ON THE IAS/MACH WINDOW OF THE MCP PANEL. GROUNDED - YES. CONFIRMED FAULT, IAS/MACH WINDOW DIGITS UNREADABLE. REMOVED & REPLACED DFCS MCP REF AMM 22-11-34. ACCOMPLISHED MCP INSTALLATION TEST REF AMM 22-11-34-740-801, AMM 22-11-34/501, DFCS LAND VERIFY TEST (GP 49) REF AMM 22-11-00 & HGS SYSTEM TEST REF SMM 34-36-00, OPS CK NML.