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Welcome to the Dauntless Aviation Glossary!
At Dauntless, our editorial staff maintains the web's largest unified glossary of aviation terms. This glossary is built from a combination of official, quasi-official,
and proprietary sources (including original material that we develop oursselves). Uniquely, we often provide multiple definitions of a given term so that you can find that which best applies
to you. In order to maximize your learning efficiency, this glossary (and similar ones for our international users) is incresingly fully integrated into our aviation learning apps, including
our FAA written test prep and FAA practical test prep software and apps. If you like this glossary,
you'll love them with their polished learning environments and world's best and clearest content (please do give them a try.).
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Airworthiness Directive
Airworthiness Directive | | a regulation issued by the FAA that applies to aircraft, aircraft engines, propellers, or appliances, when an unsafe condition exists and that condition is likely to exist or develop in other products of the same type design. | source: FAA Acceptable Methods - Aircraft Inspection and Repair (AC 43.13-1B) |
| | Airworthiness Directive (AD): A regulatory notice sent out by the FAA to the registered owner of an aircraft informing the owner of a condition that prevents the aircraft from continuing to meet its conditions for airworthiness. Airworthiness Directives (AD notes) must be complied with within the required time limit, and the fact of compliance, the date of compliance, and the method of compliance must be recorded in the aircraft’s maintenance records. | source: FAA Airplane Flying Handbook (FAA-H-8083-3A) |
| | A notice sent out by the FAA to the registered owner of an aircraft notifying him or her of an unsafe condition that has been found on the aircraft. Compliance with AD notes is mandatory. | source: FAA Aviation Maintenance Technician Airframe Handbook (FAA-H-8083-31) |
| | Issued by the FAA in response to deficiencies and/or unsafe conditions found in aircraft, engines, propellers, or other aircraft parts. Compliance with an AD is mandatory. | source: FAA Aviation Maintenance Technician General Handbook (FAA-H-8083-30) |
| | A regulatory notice sent out by the FAA to the registered owner of an aircraft informing him or her of the discovery of a condition that keeps the aircraft from continuing to meet its conditions for airworthiness. Also called AD notes, they are covered by Federal Aviation Regulations part 39 Airworthiness Directives. They must be complied with within the specified time, and the fact, date, and method of compliance must be recorded in the aircraft maintenance records. | source: FAA Aviation Maintenance Technician Powerplant Handbook (FAA-H-8083-32) |
| | A regulatory notice sent out by the FAA to the registered owner of an aircraft informing him or her of a condition that prevents the aircraft from meeting its conditions for airworthiness. Compliance requirements will be stated in the AD. | source: FAA Balloon Flying Handbook (FAA-H-8083-11) |
| | When an unsafe condition exists with an aircraft, the FAA issues an Airworthiness Directive to notify concerned parties of the condition and to describe the appropriate corrective action. | source: FAA Helicopter Flying Handbook (FAA-H-8083-21A) |
| | Airworthiness Directives (ADs) are issued by the Federal Aviation Administration (FAA) to notify owners and users of aeronautical products of unsafe conditions and the mandatory corrections under which the product may continue to be used. Each AD is an amendment to Title 14, Code of Federal Regulations, part 39; as such, it is part of the Federal Public Laws. | source: FAA Parachute Rigger Handbook (FAA-H-8084-17) |
| | Airworthiness Directive (AD): A regulatory notice sent out by the FAA to the registered owner of an aircraft informing the owner of a condition that prevents the aircraft from continuing to meet its conditions for airworthiness. Compliance with AD notes must be within the required time limit, and the fact of compliance, the date of compliance, and the method of compliance must be recorded in the aircraft's maintenance records. | source: FAA Weight Shift Control Handbook (FAA-H-8083-5) |
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Disclaimer: While this glossary in most cases is likely to be highly accurate and useful, sometimes, for any number of editorial, transcription, technical, and other reasons, it might not be.
Additionally, as somtimes you may have found yourself brought to this page through an automated term matching system, you may find definitions here that do not match the cotext or application in which
you saw the original term. Please use your good judgement when using this resource.
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