As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AVIONIC SMOKE LIGHT INFLIGHT, WENT OUT AFTER 10 MINUTES FOLLOWING LEFT AND RIGHT AVIONIC SWITCHES SELECTED TO OFF. EMERGENCY DECLARED, RETURNED TO LAX. REMOVED AND REPLACED AVIONIC SMOKE DETECTOR IAW SAAB AMM 26-13-05. OPERATIONAL CHECK GOOD, RETURNED AIRCRAFT TO SERVICE.