As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED: AN EMERGENCY WAS DECLARED DUE TO: DURING CRUISE SOURCE OFF LIGHT ILLUMINATED COMBINE WITH GEN BUS OFF LIGHT. AIRCRAFT RETURN TO AND LANDED SAFELY AT MIA WITHOUT FURTHER INCIDENT. SERVICE LEFT (AALA202312113315) AND RIGHT (AALA202312118372) IDG TO FULL MARK, PER AMM 12-13-21. NO LEAK NOTED. PERFORMED ENGINE RUN UP AT CRUISE POWER FOR 10 MINUTES NO SOURCE LIGHT OR GEN BUS LIGHT ILLUMINATED.