As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
GROUND POWER WAS INTERUPTED AND THEN RE ESTABLISHED. AFTERWARD MCP PANEL LIGHTS ALL WENT OUT. REPOWERED MCP REF MM 22 11 34 400 801. MCP POWERED UP NORMALLY. CBS PULLED AND RESET : P18 1 D 1 D 2 D 3 D 5 E 1 E 3. P6 2 B 1 B 3 B 4 C 3. POWER RESTORED TO MCP. GROUND VERIFICATION TEST NORMAL REF. AMM 22 11 34 400. HGS SENSOR TEST NORMAL REF 34 36 00.