As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
EMERGENCY LIGHTS AT SEAT 7ABC TO 14ABC DO NOT ILLUMINATE WHEN TESTED. FOUND THE M1676 POWER SUPPLY AT FAULT. REMOVED AND REPLACED THE POWER SUPPLY IAW MM 33-51-06-960-806, AND THE BATTERY PACK IAW MM 33-51-06-960-805. OPS CHECKED GOOD.