As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LOG PAGE 8454886 - FLT 723-PHL - EMERGENCY EGRESS SYSTEM - CIDS MASTER CAUTION LIGHT ON. MAINTENANCE FOUND LEFT AFT EXIT DOOR ASSIST BOTTLE LOW. REMOVED AND REPLACED CHARGING VALVE AND PERCUSSION MECHANISM SEALS PER TROUBLESHOOTING MANUAL 52-22-00-860-005 AND CHARGED TO PROPER LEVEL.