As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
EMERGENCY LIGHTING: ON PREFLIGHT, DURING LIGHTS CHECK, ALL EMERGENCY LIGHTS FLASH WHEN EMERGENCY LIGHTS SELECTED ON. REMOVED FORWARD AND AFT EMERGENCY LIGHT BATTERIES. REPLACED FORWARD BATTERY WITH A NEW BATTERY. REPLACED AFT BATTERY WITH A INSPECTED/TESTED BATTERY. BOTH IAW EMB-505 AMM 33-52-01. OPERATIONAL CHECKS SATISFACTORY AND BOTH BATTERIES RECHARGED AFTER TESTING.