What was found
CABIN EMERGENCY SYSTEM TEST FAIL. *S/D* BAD BATTERY WAS FOUND ON LEFT OVERWING POWER SUPPLY UNIT. BATTERY WAS REPLACED.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
CABIN EMERGENCY SYSTEM TEST FAIL. *S/D* BAD BATTERY WAS FOUND ON LEFT OVERWING POWER SUPPLY UNIT. BATTERY WAS REPLACED.