As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LAVATORY SMOKE WARNING ON EICAS DURING CLIMBOUT THROUGH 1000 FT, PASSENGER REPORTED SLIGHT ODOR OF ELECTRICAL BURNING. ACCOMPLISHED ETN EM-72-034 R4 TWICE. FOUND ODOR TO BE RESIDUAL OIL FROM APU REMOVAL & REPLACEMENT. NO ODORS NOTED AT THIS TIME.