As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SEA FLIGHT NR 2476: PSU OVER ROW 7DE CAME DOWN. AIRCRAFT RETURNED TO GATE. MAINTENANCE REINSTALLED PSU AT ROW 7DE AS REQUIRED. READING LIGHTS, GASPERS, CALL BUTTON AND SPEAKER ALL OPS CHECKS GOOD. NO PARTS REPLACED. AIRCRAFT RETURNED TO SERVICE.