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An airworthiness directive (commonly abbreviated as AD) is a notification to owners and operators of certified aircraft that a known safety deficiency with a particular model of aircraft, engine, avionics or other system exists and must be corrected. [1] [2]
The AIM ' s text and images are produced by the FAA, and are available in electronic form. [2] Several commercial enterprises sell typeset books containing the AIM, usually in combination with those chapters of the Federal regulations that are particularly important to pilots. The books are usually called "FAR/AIM".
Airworthiness Directive: ADA Advisory area ADAHRS Air data attitude heading reference system ADC Air data computer: ADD Acceptable deferred defect ADF Automatic direction finder: Navigation equipment ADI Attitude Director Indicator: ADIRS Air Data Inertial Reference System ADIRU Air Data Inertial Reference Unit: ADIZ Air defense identification ...
The USA Federal Aviation Regulations, Part 21, §21.183(d) has a procedural definition of airworthy: "other aircraft An applicant for a standard airworthiness certificate for aircraft not covered by paragraphs (a) through (c) (a:"New aircraft manufactured under a production certificate." b:"New aircraft manufactured under type certificate only."
Some advisory circulars are only a few pages long and do little more than reference a recommended standard; for example, AC 20-152 referencing DO-254. [8] Others, like AC 20-115 C/D, are considerably longer; in this case including guidance on how to transition from DO-178 revision B to C [ 9 ] while AC 20-152A adds several new objectives to an ...
Title 14 CFR – Aeronautics and Space is one of the fifty titles that make up the United States Code of Federal Regulations (CFR). Title 14 is the principal set of rules and regulations (sometimes called administrative law) issued by the Department of Transportation and Federal Aviation Administration, federal agencies of the United States which oversee Aeronautics and Space.
In this respect, a digital AIP is a digital version of the paper AIP, usually available in PDF format, while an electronic AIP is available in PDF as well as other formats, more suitable for reading on the screen and for electronic data exchange. Many countries around the world provide digital AIPs either on CD-ROM subscription or on a Web site.
An emergency airworthiness directive (EAD) is an airworthiness directive issued when unsafe conditions require immediate action by an aircraft owner or operator. An EAD is published by a responsible authority such as the FOCA, EASA or FAA related to airworthiness and maintenance of aircraft and aircraft parts. It contains measures which must be ...