What was found
AIRCRAFT WAS GROUNDED: DURING PERIODIC SERVICE CHECK FORWARD EMERGENCY POWER SUPPLY UNIT BATTERY FAILED CIDS SYSTEM TEST. REPLACED BATTERY PER AMM 33-51-38 AND ACCOMPLISHED A SATISFACTORY OPERATIONAL CHECK.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
AIRCRAFT WAS GROUNDED: DURING PERIODIC SERVICE CHECK FORWARD EMERGENCY POWER SUPPLY UNIT BATTERY FAILED CIDS SYSTEM TEST. REPLACED BATTERY PER AMM 33-51-38 AND ACCOMPLISHED A SATISFACTORY OPERATIONAL CHECK.