As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING A ROUTINE OVERNIGHT MAINTENANCE SERVICE CHECK LAS VEGAS MAINTENANCE REPORTED THAT THE FORWARD OVERWING HATCH EXIT SIGNS WOULD NOT TEST. FURTHER REPORT THAT THE BATTERY HAD BECOME PARTIALLY DISMOUNTED FROM THE POWER SUPPLY. A SATISFACTORY OPERATIONAL CHECK WAS ACCOMPLISHED PER AMM 33-53-00. THE AIRPLANE HAS RETURNED TO SERVICE.