As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PDIS 630 26-23 1660181 12NOV18 CLT CLOSE LAV SMOKE EICAS MESSAGE DISPLAYED ENROUTE. CBS E12 AND E13 PULLED PER QRH FACT 12NOV18 18:11 CLT INSP. AND TESTED LAV SMOKE DET. NO DEFECTS NOTED. GROUND RAN A/C WITH PACKS 1&2 ON. AT FULL HOT. NO SMOKE OR SMELL DETECTED. (SHORT SIGN) INSPECTED AND FOUND AFT FLASHLIGHT INOP. REF. L/P 166016-2 R&R'D AFT FLASHLIGHT AND BASE IAW AMM 33-50-16-04. GRND RN A/C. NO ODORS NOTED. RE-SET C/B E12 & E13 AT THIS TIME.