As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING EMERGENCY EQUIPMENT CHECK, FOUND AFT MEGAPHONE INSPECTION DUE AT END OF MONTH FOR BATTERY REPLACEMENT. DURING BATTERY REPLACEMENT FOUND CURRENT BATTERIES LEAKING INTERNALLY INSIDE MEGAPHONE CAUSING CORROSION. / REMOVED AND REPLACED AFT MEGAPHONE IAW AMM 25-65-51-920-001-A."