At Continuing Airworthiness our team of corrective action engineers, specialist engineers, technical inspectors, information program editors and associated technical support staff take the corrective action necessary to resolve in-service aircraft airworthiness issues. This is achieved in part by the development, issuance and distribution of Airworthiness Directives (ADs) and the approval of Alternative Means of Compliance (AMOC). We operate a system of information gathering and analysis for every matter or incident where airworthiness is brought into question. One way we achieve this, is through the Service Difficulty Reporting (SDR) program. This information is disseminated to the aviation community through our information programs section in such publications as Airworthiness Notices (ANs), Service Difficulty Alerts, Service Difficulty Advisories, and the Quarterly FEEDBACK flyer. We co-ordinate Aircraft Certification Branch review of Transportation Safety Board (TSB) recommendations and advisories and coroners recommendations to identify the need for Transport Canada airworthiness action. Review of applicable manufacturer's service bulletins, domestic manufacturers notices to operators and foreign Airworthiness Directives ensures consistency with Canadian requirements and identifies, where required, the need for Transport Canada continuing airworthiness action. Management of the Transport Canada Aging Aircraft Program, Continuing Airworthiness Web Information System (CAWIS), and the Annual Airworthiness Information Reporting System (AAIR) is also within our mandate.