As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AVIONIC SMOKE LIGHT & ECAM ILLUMINATED DURING CRUISE FL 340, SNIFFER DETECTED NO SMOKE. INDICATIONS WENT AWAY AFTER A FEW MINUTES ONLY TO RETURN WITH INTERMITTENT INDICATIONS. NO ODOR OF SMOKE IN AVIONIC BAY. R & R AVIONIC SMOKE DETECTOR 13WA IAW MM 26-15-12-04. OPS CHECKED GOOD.