As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LEFT EXT OVERWING EMER LIGHT INOPERATIVE. R & R LT EXT OVERWING EMER LIGHT LAMPS IAW AMM 33-50-10-000-801-A & 33-50-10-400-801-A, NO FIX. TROUBLE SHOT & FOUND NR 4 BATTERY POWER SUPPLY TO BE BAD. R & R IAW WC 33-700-19. OPERATIONS CHECK & FUNCTIONAL CHECK GOOD. BATTERY CHARGER ASSEMBLY PN 11-0049 SN 19174.