As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS NOT GROUNDED: EMERGENCY LIGHTING SYSTEM OPERATIONAL CHECK STEP C, WBU 11, HARDWARE P/N 100-2602-01. S/N : ST19120607,NEEDS TO BE REPLACED. **SUPPLEMENTAL REPORT FOR SDR AALA202405032269.** (CLOSED) MAINTENANCE REPLACED WIRELESS EMERGENCY LIGHTING SYSTEM CONTROL UNIT BATTERY WBU 11 W/ HARDWARE SERIAL NUMBER ST19120607 IAW AMM'33-51-07.