As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LAX - FLT 3237 - DURING TAKEOFF ROLL, EMERGENCY DECLARED DUE TO SMOKE IN CABIN. SMOKE COMING FROM OVERHEAD ON LEFT SIDE OF CABIN NEAR THE CABIN LIGHTS AT 3A AND AFT OF MAIN ENTRY DOOR. FOUND SINGLE PSU PANEL ABOVE SEAT 3A DAMAGE AND BURNED. REMOVED AND REPLACED PSU PANEL IAW SAAB 23-30-35. OPS CHECK GOOD. (M)