Airworthiness directive
An Airworthiness Directive ( AD ), English airworthiness directive ( AD ), contains a list of action to be taken if, after admission of an aviation equipment turns out to be defective, and thereby the airworthiness is limited. The listed measures are intended to restore airworthiness and may include inspections, repairs, etc. For this purpose, the holder of the type certificate creates a security bulletin ( service bulletin ) which describes the measures to be taken. Only when the prescribed measures have been carried out in accordance with regulations may the aircraft concerned be put back into operation. The airworthiness directive is usually drawn up by the certifying body and announced in the aviation news or in the officer’s information leaflet. They are also published on the homepages of the aviation authorities.
Situation in Germany
In Germany , LTAs are published by the Luftfahrt-Bundesamt in the news for pilots or in the information sheet of the commissioner (§ 14 LuftBO).
Situation in other countries
In the United States, the Federal Aviation Administration is responsible for the publication of airworthiness directives, and in Canada, the Department of Transportation, Transport Canada .
Individual evidence
- ^ Canadian Aviation Regulations. In: laws-lois.justice.gc.ca. Retrieved April 6, 2014 .