As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AC DIST P6 BREAKER POP INFLIGHT W/ ASSOCIATED EICAS MESSAGES. PERFORMED INSPECTION OF AC DIST P6 BREAKER AND ASSOCIATED WIRING, NO DEFECTS FOUND IAW B747-400 AMM 20-60-03. PERFORMED AUTOLAND UNIQUE GROUND TEST IAW AMM 22-10-00. ALL CHECKS SATISFACTORY, NO DEFECTS NOTED AT THIS TIME. AIRCRAFT REMAINS CAT III.