As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SMOKE FILLED CABIN (LIGHT GREY AND ELECTRICAL SMELL) AROUND SEAT 7AB AND FILLED COCKPIT. WE EXECUTED MEMORY ITEMS AND CHECKLISTS. THE SMOKE DISAPPEARED AFTER A FEW MINUTES. (FLIGHT 5497 - FILED OPEN) THIS IS CURRENTLY A WORK IN PROGRESS