What was found
DFW - FLT 3946 - EMERGNECY POWER LIGHT ILLUMINATED. AIRCRAFT TURNED BACK TO DFW. REMOVED AND INSTALLED EMERGENCY BATTERY. OPERATIONS CHECKED GOOD. AIRCRAFT RETURNED TO SERVICE. (X)
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
DFW - FLT 3946 - EMERGNECY POWER LIGHT ILLUMINATED. AIRCRAFT TURNED BACK TO DFW. REMOVED AND INSTALLED EMERGENCY BATTERY. OPERATIONS CHECKED GOOD. AIRCRAFT RETURNED TO SERVICE. (X)