As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PHL - WHILE PERFORMING OVERNIGHT CHECK, MAINTENANCE FOUND THE EMERGENCY EXIT SIGNS INOPERATIVE AT SEAT ROW 10 ABC CEILING AND SIDEWALL. MAINTENANCE TROUBLESHOT SYSTEM TO THE CEILING BATTERY PACK. REMOVED AND REPLACED BATTERY PACK IN CEILING. OPERATIONAL CHECK GOOD. (M)