What was found
AFT CABIN EMERGENCY EQUIPMENT MEGAPHONE WILL NOT AMPLIFY SOUND WITH NEW BATTERIES INSTALLED. REMOVED AND REPLACED AFT CABIN MEGAPHONE WITH SERVICEABLE UNIT.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
AFT CABIN EMERGENCY EQUIPMENT MEGAPHONE WILL NOT AMPLIFY SOUND WITH NEW BATTERIES INSTALLED. REMOVED AND REPLACED AFT CABIN MEGAPHONE WITH SERVICEABLE UNIT.