As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED (SHORT TERM STORAGE): L2 DOOR EMERGENCY POWER ASSIT BATTERY ASSEMBLY DOES NOT FLASH GREEN WHEN ARMED. REMOVED AND REPLACED 2 EACH 9V BACK UP BATTERIES ON DOOR L2 EMERGENCY POWER ASSIST SYSTEM BATTERY ASSEMBLY IAW AMM 52-11-20-400-806-002.