As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PHL - DURING SQUIB TEST, THE RIGHT EMERGENCY ESCAPE SPOILER SQUIB WILL NOT TEST AT SQUIB PANEL. MAINTENANCE FOUND THE RIGHT OFF-WING ESCAPE SYSTEM POWER SUPPLY M962 AND BATTERY DEFECTIVE. REPLACED BOTH POWER SUPPLY AND BATTERY. OPERATIONAL GOOD.