As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PHL - DURING AN ANNUAL SLIDE DEPLOYMENT CHECK, THE R1 DOOR SLIDE WAS DEPLOYED AND INFLATED NORMALLY. HOWEVER, NONE OF THE LIGHTS OPERATED. THE SLIDE WAS REPLACED. THE SHOP CONCLUDED THAT THE SLIDE FUNCTIONED PROPERLY, BUT THAT THE BATTERY WAS DEAD. (M)