1 04 7.4_SMSM_20150 9 Originally published September 2015 Uncontrolled copy when downloaded  ATO Audit and Assessment Programs  Section 7  7.4 Reported Safety Data about Serviceability of Equipment, Systems, and Facilities  Outage reports, significant event reports, and general maintenance logs capture the majority of  daily system performance metrics, including incidents. (Refer to  Federal Aviation Administration  (FAA) Order JO 6030.41,  Notification of Facility Service Interruptions and Other Significant  Events , for more information about reporting significant events.) Air Traffic Organization  employees make additional reports in the form of Notices to Airmen and accident reporting, and  they collect data via a formal hotline and the Unsatisfactory Condition Report program.  Hardware and software in the National Airspace System (NAS) that are used for aircraft  separation have established performance standards necessary for system safety. Overall  trends and performance levels are monitored systematically, and requirements are documented  during the certification process. Certification is a Quality Control method used to help ensure  that NAS systems and services are performing as designed. Refer to FAA Order 6000.30, National Airspace System Maintenance Policy , for more information.  The NAS Technical Evaluation Program and Unsatisfactory Condition Report program require  written documentation and management involvement in the review, mitigation, and analysis of  trends. Through the NAS Technical Evaluation Program, personnel conduct periodic  independent technical reviews of services provided by systems, sub-systems, and equipment. These reviews also address how well the services match customer needs. The Unsatisfactory  Condition Report program allows employees to file reports on identified deficiencies in the  safety or efficiency of procedures, equipment, working environment operations, or services. Refer to FAA Order 1800.6,  Unsatisfactory Condition Report,  and FAA Order JO 6040.6,  National Airspace System Technical Evaluation Program , for detailed information. 