As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING TRANSIT CHECK A BURNED ODOR WAS DETECTED IN AFT LEFT LAVATORY. ELECTRICAL CIRCUIT WAS CHECKED IAW WDM 33-23-12 AND THERE WERE DETECTED A TRANSFORMER T1-2 AND CONNECTOR R5-2403 WITH SHORT CIRCUIT. THE CONNECTOR AND TRANSFORMER WERE REPLACED IAW WDM 33-23-12, TESTS CORRECT.