As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
NR 1 BUS PWR FAIL LIGHT ILLUMINATED ON BLOCK IN. COCKPIT FILLED W/PACK SMOKE EVEN THOUGH PACK WAS OFF. COULD STILL HEAR FAN OPERATING AND COOLING DOORS OPEN. TROUBLESHOT SYSTEM PER MM 24-20-00. RECONNECTED NR 3 GENERATOR, RAN ENGINE, SYSTEM OPS CHECKS GOOD. SEE M180145.