As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SMOKE AND SPARKS COMING FROM SIDEWALL LIGHT AT SEAT 5D. DECLARED EMERGENCY. DIVERTED. (FLT 5672) CLOSED INSPECTED SIDEWALL AND CEILING LIGHT AT SEAT 5D AND SURROUNDING AREA FOR FIRE DAMAGE. NO FIRE DAMAGE FOUND. REMOVED AND REPLACED SIDEWALL LIGHT 5D LUMINAIRE IAW AMM.