As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CREW REPORTED BURNING SMELL & SMOKE COMING FROM RT AFT LAVATORY. MX FOUND SOURCE OF SMOKE TO BE LIGHT ASSEMBLY CAPSULE IN RT AFT LAVATORY. NO DAMAGE TO ACFT. CHECKED & DEFERRED LIGHT IAW MEL 332. OK FOR SERVICE. ACFT WAS NOT GNDED. REPLACED FLUORESCENT LAMP IN CEILING OF RIGHT AFT LAVATORY.