Engineering:Advisory circular
Advisory circular (AC) refers to a type of publication offered by the Federal Aviation Administration (FAA) to provide guidance for compliance with airworthiness regulations, pilot certification, operational standards, training standards, and any other rules within the 14 CFR Aeronautics and Space Title. They define acceptable means, but not the only means, of accomplishing or showing compliance with airworthiness regulations.[1] Generally informative in nature, Advisory Circulars are neither binding nor regulatory; yet some have the effect of de facto standards or regulations.[2]
Advisory circulars typically refer to industry standards from SAE (ARP) and RTCA (DO).[3] With harmonization of technical content and guidance between EASA and the FAA, later advisory circulars also identify corresponding EUROCAE (ED) publications.[4]
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.[5] Others, like AC 20-115C/D, are considerably longer; in this case including guidance on how to transition from DO-178 revision B to C.[6]
| Advisory Circular | Title | Referenced Standards |
| AC 00-69 | Best Practices for Airborne Software Development Assurance Using EUROCAE ED-12( ) and RTCA DO-178( ) | |
| AC 00-71 | Best Practices for Management of Open Problem Reports (OPRs) | |
| AC 00-72 | Best Practices for Airborne Electronic Hardware Design Assurance Using EUROCAE ED-80( ) and RTCA DO-254( ) | |
| AC 20-115 | Airborne Software Development Assurance Using EUROCAE ED-12( ) and RTCA DO-178( ) | ED-12C/DO-178C ED-215/DO-330 ED-218/DO-331 ED-217/DO-332 ED-216/DO-333 |
| AC 20-136 | Aircraft Electrical and Electronic System Lightning Protection | RTCA DO-160 §22 |
| AC 20-148 | Reusable Software Components | |
| AC 20-152A | Design Assurance Guidance for Airborne Electronic Hardware | RTCA DO-254 |
| AC 20-170 | Integrated Modular Avionics Development. Verification, Integration and Approval | RTCA DO-297 |
| AC 20-189 | Management of Open Problem Reports (OPRs) | |
| AC 20-1317 | The Certification of Aircraft Electrical and Electronic Systems for Operation in the High Radiated Fields (HIRF) Environment | |
| AC 25.1309-1 | System Design and Analysis | ARP4754, ARP4761 |
| AC 43.13-1B | Acceptable Methods, Techniques, and Practices - Aircraft Inspection and Repair | |
| AC 70-1 | Outdoor Laser Operations | |
| AC 91-57B | Exception for Limited Recreational Operations of Unmanned Aircraft (relevant to Regulation of UAVs in the United States) | |
| AC 107-2 | Small Unmanned Aircraft Systems (sUAS) (contains 14 CFR part 107 guidance). | 49 U.S.C. § 44809 |
See also
- Airworthiness Directive (in comparison, airworthiness directives are legally enforceable rules)
References
- ↑ David B. Walen FAA, Civil Aircraft System Safety and Electromagnetic Compatibility, November 16, 2010, p. 6
- ↑ Approach, Volume 31, Issue 3, Naval Safety Center, 1985 - Aeronautics, p. 25.
- ↑ Leanna Rierson (19 December 2017). Developing Safety-Critical Software: A Practical Guide for Aviation Software and DO-178C Compliance. CRC Press. p. 49. ISBN 9781351834056. https://books.google.com/books?id=nAlEDwAAQBAJ. Retrieved 2022-03-03. "The recognition typically comes in the form of an Advisory Circular (AC) for the FAA and equivalent advisory materials by other certification authorities."
- ↑ AC 20-115D, FAA, Office AIR-134, 2017. "The technical content of this AC is as far as practicable harmonized with European Aviation Safety Agency (EASA) AMC 20-115D, equally based on ED-12C/DO-178C."
- ↑ AC 20-152, FAA, 2007.
- ↑ AC 20-115D, FAA, Office AIR-134, 2017.
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