What was found
FLT 309, IAD-SAN, APPROX BETWEEN 13:30Z-15:09Z SEAT 12E READING LIGHT OUT. PAX OBSERVED SMOKE AS LIGHT WENT OUT. REMOVED OVERHEAD PANEL 12 DEF, INSP WIRING AND CIRCUIT BOARD, FOUND NO EVIDENCE OF ELECT BURNING, RESECURED PANEL. RE-SET CIDS, PERFORMED OPERATIONAL TEST OF THE PASSENGER READING LIGHT SYSTEM PER AMM 33-25-00-710-001. OPS CHECK OK.