As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
STRONG ELECTRICAL ODOR IN THE FOWARD LAVATORY. THE AIRCRAFT WAS GROUNDED. MAINTENANCE ACCOMPLISHED JC 26L00021001, FOUND THE LAVATORY A WATER HEATER THE SOURCE OF THE ODOR. MAINTENANCE REPLACED LAVATORY A WATER HEATER IAW AMM 38-12-16, AND PERFORMED SATISFACTORY OPERATIONAL CHECK.