As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AVIONICS SMOKE LIGHT ILLUMINATED IN FLIGHT. DID TEST OF SMOKE DETECTORS IAW SAAB MM 26-13-00-5, OPS CHECK GOOD. DID FAULT ISOLATION OF AVIONICS SMOKE DETECTOR WITH SMOKE PRESENT AND WITHOUT. ALARM SOUNDED WHEN PRESENT AND EXTINGUISHED WHEN CLEAR, CHECKED PINS IAW SAAB MM 26-13-00-1, OPS CHECK GOOD.