AMC analysts then continue to monitor the carrier's safety record, operations and maintenance status, contract performance, financial condition and management initiatives, summarizing significant trends in a comprehensive review every six months. In addition to this in-depth review, there are several other surveillance initiatives. These include safety preflight inspections of commercial aircraft by Department of Defense designated inspectors, periodic cockpit observations on operational flights by highly experienced pilots from AMC's Department of Defense Commercial Airlift Division, and an increase in the frequency of on-site surveys. These initiatives and the surveys are further supplemented by an open flow of information on all contract carriers between AMC and the FAA through established liaison officers.