As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AT TOP OF DESCENT (FL360) WHEN WE SET 12,000 FT IN ALTITUDE ALERTED FOR ATC RESTRICTION ALTITUDE ALERTER RESET TO 50,000 FT & ALTITUDE DEVIATION TONE SOUNDED. ALTITUDE ALERTER WOULD NOT RESPOND TO INPUT & ALTITUDE DEVIATIION TONE SOUNDED CONTINUOUSLY TO TOUCHDOWN. VERTICAL FLIGHT MODES UNRELIABLE. REPLACED MCP PER AMM 22 11 34. ACCOMPLISHED DFCS ADJUST/TEST PER AMM REF 22 11 00, OPS CHECK NORMAL.