As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
INSPECTION TYPE:N/A**ATB** MCP ALTITUD WINDOW FROZE AT 4900' REMAINDER OF FLIGHT AND AFTER POWER RESET ON GROUND DURING AND AFTER SHUTDOWNR/R'D MODE CONTROL PANEL PER MM 22-11-02-201 PERFORMED MCDP TEST 4 FOR MCP PER FIM22-03-00-815-829 FIG 103 TESTS NORMAL