From the York Dispatch: Fire chiefs around York County, Pa., were left scrambling Wednesday when the 911 center's paging system stopped working for 93 minutes.

The system was rendered inoperable for scheduled maintenance. A backup system designed to automatically recognize the failure and take over also failed.

The 911 center used its backup Everbridge phone-notification system to alert emergency responders of the paging system's failure, but at least one area chief said he didn't receive that backup notification.