As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT 7682 - SLC TO LAX - DURING TAKEOFF ROLL FLIGHT CREW REPORTED SMOKE IN CABIN. CONTRACT MX PERFORMED RUN-OPS OF AIRCRAFT AND APU AT FULL FLOW PACKS. NO SMOKE FOUND AND NOTED. A/C WAS RETURNED FOR SERVICE IN AIRWORTHY CONDITIONS. PROBLEM WAS CORRECTED WITHOUT EXCHANGING PARTS.