« Back to Advisory Circulars main page

Will search within "Aircraft" only. Search all ACs.

51 - 75 of 99 results.

Export to MS Excel

Search results
Number Office Title Date
20-170 AIR-120 Integrated Modular Avionics Development. Verification, Integration and Approval using RTCA/DO-297 and Technical Standard Order C153

This advisory circular (AC) shows you how to obtain Federal Aviation Administration (FAA) airworthiness approval for the development, verification, and integration of an integrated modular avionics (IMA) system for installation into an aircraft or engine.  We cite RTCA, Inc. document RTCA/DO-297, Integrated Modular Avionics (IMA) Development Guidance and Certification Considerations, dated November 8, 2005 and supplement it with this text.  This AC also provides guidance on how to show compliance with Technical Standard Order (TSO)-C153, Integrated Modular Avionics Hardware Elements.

This AC is not mandatory and does not constitute a regulation.  In it, we describe an acceptable means, though it is not the only means, to obtain FAA approval of IMA systems.    

This AC uses the terminology “should” when discussing compliance to the AC itself, as the AC represents one, but not the only, method of complying with the regulations.   This AC uses the term “must” when discussing compliance to the regulations, as compliance to a regulation is not optional.  In these cases, the AC text supplies, in square brackets, a reference to the specific rule(s) being discussed.

20-171 AIR-120 Alternatives to RTCA/DO-178B for Software in Airborne Systems and Equipment

On January 11,1993, we, the Federal Aviation Administration (FAA), published Advisory Circular (AC) 20-115B recognizing RTCA/DO-178B, Software Considerations in Airborne Systems and Equipment Certification, dated December 1, 1992, as a means, but not the only means, to seek FAA approval of airborne software. RTCA/DO-178B is recognized by industry and certification authorities as an accepted approach for assuring that software in airborne systems and equipment has been developed to meet the safety objectives of the regulations.


This AC identifies what you, as an applicant, will have to address and document when you propose an alternative approach to that defined in RTCA/DO-178B. This AC is intended to provide you, the applicant, with guidance on how to establish that your proposed alternative provides the same level of assurance as that provided in RTCA/DO-178B for airborne software.  Your proposed alternative should be evaluated in conjunction with the certification process and applied to airborne systems and equipment (containing software) for which you are seeking FAA approval in order to obtain a Type Certificate, Supplemental Type Certificate, Amended Type Certificate, or Amended Supplemental Type Certificate.

20-174 AIR-120 Development of Civil Aircraft and Systems

This advisory circular (AC) recognizes the Society of Automotive Engineers (SAE) Aerospace Recommended Practice (ARP) 4754A, Guidelines for Development of Civil Aircraft and Systems, dated December 21, 2010, as an acceptable method for establishing a development assurance process. SAE ARP 4754A discusses the development of aircraft and systems taking into account the overall aircraft operating environment and functions. This includes validation of requirements and verification of the design implementation for certification and process assurance.

20-175 AIR-120 Controls for Flight Deck Systems

This advisory circular (AC) provides guidance for the installation and airworthiness approval of flight deck system control devices, from primarily a human factors perspective.  It does not address primary flight controls, secondary flight controls, or controls that are not located in the flight deck.   This AC addresses traditional dedicated controls such as physical switches and knobs, as well as multifunction controls such as touch screens and cursor control devices. 

20-166 AIR-110 Issue Paper Process


a.            This advisory circular (AC) provides information on the use of issue papers and gives you guidance on your role in describing and tracking the resolution of significant technical, regulatory, and administrative issues derived from the issue paper process. This document provides guidance to you relative to FAA Order 8110.112, Standardized Procedures for Usage of Issue Papers and Development of Equivalent Levels of Safety Memorandums.

       b.  This AC is not mandatory and is not a regulation. This AC describes an acceptable means, but not the only means, to comply with Title 14 of the Code of Federal Regulations (14 CFR). However, if you choose to use the means described in this AC follow it in its entirety. 

20-180 AIR-110 Approved Model List Supplemental Type Certificate (AML-STC)

This advisorycircular(AC)providesguidelines and requirements to obtain approved model list (AML)supplemental typecertificate(STC).  This ACis not mandatoryand does not constitutearegulation.  It describes anacceptablemethod, but not theonlymethod to obtain an AML-STC.  You mayusean alternatemethod ifyou establish that it adequatelymeets therequirements.  However, ifyou usethis ACto obtain approval,you must comply with all ofits provisions.

20-33B AIR-100 Technical Information Regarding Civil Aeronautics Manuals 1, 3, 4a, 4b, 5, 6, 7, 8, 9, 13, and 14 Advises the public that policy information contained in the subject Civil Aeronautics Manuals may be used in conjunction with specific sections of the Federal Aviation Regulations. 05-01-1975
20-53B AIR-100 Protection of Aircraft Fuel Systems Against Fuel Vapor Ignition Caused by Lightning Provides information and guidance concerning an acceptable means, but not the only means, of compliance with Parts 23 or 25 of the Federal Aviation Regulations (FAR) applicable to preventing ignition of fuel vapors due to lightning. 06-05-2006
20-107B AIR-100 Composite Aircraft Structure

This AC sets forth an acceptable means, but not the only means of showing compliance with the provisions of Title 14 of the Code of Federal Regulations (14 CFR) parts 23, 25, 27, and 29 regarding airworthiness type certification requirements for composite aircraft structures involving fiber reinforced materials, e.g., carbon and glass fiber reinforced plastics. Guidance information is also presented on the closely related design, manufacturing, and maintenance aspects. The information contained herein is for guidance purposes and is not mandatory or regulatory in nature. 

20-114 AIR-100 Manufacturers' Service Documents Suggests acceptable methods by which product manufacturers may indicate FAA approval of recommended actions prescribed in manufacturers’ service documents. 10-22-1981
20-147 AIR-100 Turbojet, Turboprop, and Turbofan Engine Induction System Icing and Ice Ingestion This advisory circular (AC) provides guidance and acceptable methods, but not the only methods, for demonstrating compliance with the applicable engine induction system icing and engine ice ingestion requirements. These requirements are applicable to the Federal Aviation Regulations, parts 23, 25, and 33 of Title 14 of the Code of Federal Regulations (14 CFR parts 23, 25, and 33). The primary purpose of this AC is to reduce inconsistencies and eventual surprises to both engine manufacturers and engine installers, when installing a part 33 certified engine in a part 23 or 25 aircraft. 02-02-2004
20-148 AIR-100 Reusable Software Components Supplies one means for developers, integrators and applications to gain FAA acceptance of software. 12-07-2004
20-152 AIR-100 RTCA, Inc., Document RTCA/DO-254, Design Assurance Guidance for Airborne Electronic Hardware This advisory circular (AC) applies to manufacturers and installers of products or appliances incorporating complex custom micro-coded components with hardware design assurance levels of A, B, and C. These complex custom micro-coded components include application specific integrated circuits (ASIC), programmable logic devices (PLD), field programmable gate arrays (FPGA), or similar electronic components used in the design of aircraft systems and equipment. This AC provides a means (but not the only means) to gain Federal Aviation Administration (FAA) approval by showing the equipment design is appropriate for its intended function. Further, using this AC will help you satisfy airworthiness requirements when these types of electronic components are implemented 07-05-2005
20-156 AIR-100 Aviation Databus Assurance Provide a means to gain FAA approval of you aviation databus by showing the databus design performs it intended function and satisfies the applicable airworthiness requirements when install on an aircraft or aircraft engine 08-04-2006
20-160 AIR-100 Onboard Recording of Controller Pilot Data Link Communication in Crash Survivable Memory The AC offers one way to achieve an acceptable level of performance for an aircraft recording system when a controller-pilot data communication capability is installed. We wrote this AC for aircraft equipment installers and type certificate applicants to identify design approval requirements for data link communication recording equipment. 02-21-2008
20-162 AIR-100 Airworthiness Approval and Operational Allowance of RFID Systems 09-22-2008
20-163 AIR-100 Displaying Geometric Altitude Relative to Mean Sea Level a. This advisory circular (AC) shows you how to gain a type certificate (TC), supplemental TC (STC), amended TC (ATC), amended supplemental TC (ASTC), or technical standard order (TSO) authorization for systems incorporating the presentation of geometric altitude relative to mean sea level (MSL) on electronic displays. b. This AC is not mandatory and does not constitute a regulation. In it, we describe an acceptable means, though it is not the only means, to gain approval. If you use the means described, you must follow it in all important respects. 07-09-2009
20-169 AIR-100 Guidance for Certification of Military and Special Mission Modifications and Equipment for Commercial Derivative Aircraft (CDA)

This advisory circular (AC) provides guidance for the certification of commercial derivative aircraft (CDA).  CDA are aircraft that have been modified with specialized equipment to perform military and other non-civil missions.  CDA are operated-by, or under the operational control of, governmental entities.  With certain limited exceptions, they are operated as public aircraft.  This advisory circular (AC) sets forth acceptable means, but not the only means, to show compliance to the provisions of Title 14 of the Code of Federal Regulations (14 CFR) parts 23, 25, 27, and 29 regarding type certification requirements for commercial derivative aircraft (CDA).  This AC is presented as companion material to the procedures outlined in Order 8110.101, Type Certification Procedures for Military Commercial Derivative Aircraft.”  The guidance provided in this AC is for use on certification projects for Military CDA.  Certain provisions of this AC may also be applicable to certification projects for non-military CDA e.g., aircraft operated by state or local governments under public-use or aircraft owned by a foreign government.

20-178 AIR-100 Flammability Testing of Aircraft Cabin Interior Panels After Alterations

This advisory circular (AC) describes acceptable methods to test aircraft cabin interior materials when new finishes are used on existing aircraft cabin interior panels, typically performed on supplemental type certificates (STC) or major alterations. This AC applies to materials for self-extinguishing flammability only. This AC does not apply to materials that must meet heat release or smoke emissions,standards established by Title 14 of the Code of Federal Regulations (14 CFR) part 25, Amendment 25-61, and 14 CFR part 121, Amendment 121-289. We, the Federal Aviation Administration (FAA), have written this AC for applicants, offering several methods for demonstrating compliance that may be more cost-effective and less time-consuming than current methods.

20-109A AFS-620 Service Difficulty Program (General Aviation) Describes the Service Difficulty Program as it applies to general aviation activities. Instructions for completion of the revised FAA Form 8010-4 (10-92), Malfunction or Defect Report, are provided. 04-08-1993
20-68B AFS-600 Recommended Radiation Safety Precautions for Ground Operation of Airborne Weather Radar Sets forth recommended radiation safety precautions for ground operation of airborne weather radar. 08-08-1980
20-37E AFS-350 Aircraft Propeller Maintenance Provides information and suggested procedures to increase service life and to minimize blade failures of metal propellers. 09-09-2005
20-77A AFS-350 Use of Manufacturers' Maintenance Manuals Informs owners and operators about the usefulness of manufacturers’ maintenance manuals for servicing, repairing, and maintaining aircraft, engines and propellers. 04-06-2007
20-94A AFS-350 Digital Clock Installation in Aircraft 04-13-2007
20-111 AFS-350 Communication Interference Caused by Unintentional Keyed Microphones Alerts the aviation community to the potential hazards created by unintentional keying of microphones resulting in radio transmissions from airborne, mobile, and ground based radio transmitters and gives guidance on alleviating ensuing hazards. 10-10-1980

51 - 75 of 99 results.

Export to MS Excel