What was found
DIVERSION / DECLARED EMERGENCY. DC FAIL LIGHTS (BOTH) ON IN FLIGHT ABOUT FL 330. REMOVED AND REPLACED MAIN A/C BATTERY AND BATTERY CHARGER PER MM.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
DIVERSION / DECLARED EMERGENCY. DC FAIL LIGHTS (BOTH) ON IN FLIGHT ABOUT FL 330. REMOVED AND REPLACED MAIN A/C BATTERY AND BATTERY CHARGER PER MM.