What was found
BATTERY DISCHARGE LIGHT ILLUMINATED DURING FLIGHT. EMER DECLARED FLIGHT RETURNED LANDED WITHOUT INCIDENT. ACFT REMOVED FROM SERVICE. REPLACED MAIN BATTERY. SYS GND CHECKED NORMAL OPERATION CLOSED.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
BATTERY DISCHARGE LIGHT ILLUMINATED DURING FLIGHT. EMER DECLARED FLIGHT RETURNED LANDED WITHOUT INCIDENT. ACFT REMOVED FROM SERVICE. REPLACED MAIN BATTERY. SYS GND CHECKED NORMAL OPERATION CLOSED.