As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SNN DURING DAILY CHECK, MAINTENANCE FOUND THE FORWARD LEFT-HAND EMERGENCY PACK INOPERATIVE. MAINTENANCE PERFORMED TROUBLESHOOTING AND FOUND THE POWER SUPPLY AT THE FORWARD LEFT-HAND POSITION UNSERVICEABLE. REPLACED POWER SUPPLY PER MM 33-51-07-02. OPERATIONAL CHECK GOOD.