As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SMOKE ODOR EXPERIENCED DURING CRUISE. BALLAST FOR OVERHEAD CEILING INDIRECT LIGHTING AT ROW 24HJ EMITED A PUFF OF SMOKE AND ODOR, LIGHT ASSY WENT OUT. FOUND CEILING LIGHT BALLAST BURNED AND HEAVY ELECTRICAL BURNED ODOR. REPLACED IAW AMM 33-21-01. OPS CHECKED NORMAL. OK TO CONTINUE.