As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
UPON RETURN TO LAS FROM COS, THE CREW REPORTED THAT THE EMERGENCY LIGHTING HAD DEAD BATTERIES. MAINTENANCE REMOVED THE DEAD BATTERIES AND INSTALLED RECHARGED BATTERIES. THE SYSTEM, OPS CHECKED GOOD AND THE AIRCRAFT WAS RETURNED TO SERVICE. (M)