Approval of Propulsion Fuels, Additives, and Lubricating Oils
This advisory circular (AC) provides guidance applicable to adding fuels and oils as engine, aircraft, or auxiliary power unit (APU) operating limitations. It also provides guidance on fuel and lubricating oil specifications and standards, and on propulsion fuel and/or lubricating oil certification plans. This AC provides acceptable methods, but not the only methods, that may be used to approve aircraft, engines, or APUs to operate with specified propulsion fuels and lubricating oils.
|20-99||ANM-100||Antiskid and Associated Systems Provides an acceptable means, but not the only means, of complying with the requirement that anti-skid and associated systems must be designed so that no probable malfunction will result in a hazardous loss of braking or directional control of an airplane.||05-27-1977|
|20-122A||AFS-340||Anti-misfueling Devices: Their Availability and Use Includes information relating to the Society of Automotive Engineers (SAE) standard dimensions for fueling ports now being incorporated during new aircraft production by all General Aviation Manufacturer’s Association member companies. It also makes recommendations to the fuel suppliers and Fixed Base Operators to change their fuel dispensing nozzles to meet the dimensions referenced in the SAE standard.||01-29-1991|
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.
Airworthiness and Operational Approval of Digital Flight Data Recorder Systems
This advisory circular (AC) provides guidance on compliance with the applicable Regulations for the airworthiness and operational approval for digital flight data recorder systems (DFDRS).
This advisory circular (AC) provides information on certification (design and installation) and continued airworthiness of digital flight data recorder systems (DFDRS). DFDRS provide information for an investigative authority—the National Transportation Safety Board (NTSB) in the United States—to conduct more thorough investigations of accidents and incidents. The data recorded is also used by operators to enable the prediction of trends that may be useful in determining modifications needed to avoid accidents and incidents.
This AC provides information to applicants for a supplemental type certificate (STC), and to individuals who are responsible for establishing and maintaining compliance under the operating rules for digital flight data recorders (DFDR). Aircraft manufacturers who intend to install DFDRs in newly manufactured aircraft could also use this information.
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).
Airworthiness Approval of Traffic Alert and Collision Avoidance Systems (TCAS II), Versions 7.0 & 7.1 and Associated Mode S Transponders
This advisory circular (AC) provides applicants with guidance for obtaining an airworthiness approval for traffic alert collision avoidance systems II (TCAS II). It also provides guidance for certification of a stand-alone Mode S transponder system. This AC includes the TCAS II versions 7.0 and 7.1 (TSO-C119b and TSO-C119c respectively) along with the latest iteration, which is version 7.1, containing hybrid surveillance functionality as defined by TSO-C119d.
|20-131A||ANM-110||Airworthiness Approval of Traffic Alert and Collision Avoidance Systems (TCAS II) and Mode S Transponders Provides guidance material for the airworthiness and operational approval of Traffic Alert and Collision Avoidance Systems (TCAS II) and Mode S transponders. Like all AC material, this AC is not mandatory and does not constitute a regulation. Issued for guidance purpose and to outline a method of compliance with the rules.||03-29-1993|
Airworthiness Approval of Synthetic Vision Guidance System
In this advisory circular (AC), the Federal Aviation Administration (FAA) provides applicants with guidance for obtaining airworthiness approval for equipment installation of a Synthetic Vision Guidance System (SVGS) in aircraft. This AC only provides airworthiness guidance to applicants for eligible SVGS for use on Special Authorization (SA) Category (CAT) I Instrument Landing System (ILS) approaches. Operational approval must still be obtained from the Flight Standards Service.
Airworthiness Approval of Satellite Voice (SATVOICE) Equipment Supporting Air Traffic Service (ATS) Communication
This advisory circular (AC) provides guidance on airworthiness approval for designers, manufacturers, and installers of Satellite Voice (SATVOICE) equipment supporting air traffic service (ATS). In this AC, the Federal Aviation Administration (FAA) recommends one way to gain airworthiness approval for SATVOICE equipment. This AC is not mandatory and does not constitute a regulation. This AC describes an acceptable means, but not the only means, to gain airworthiness approval for your SATVOICE equipment. However, if you use the means described in this AC, you must follow it in its entirety.
Airworthiness Approval of Positioning and Navigation Systems (Including Change 1)
This revision adds minor clarifications and new guidance material based on issues and questions since revision ‘C’ was published. There are several new changes such as: equipment capability versus installed limitations; clarifying database configuration versus equipment capability; adding step-down fixes to navigation databases; a new appendix for demonstrating radius to fix (RF) leg capability; and, including required navigation performance (RNP) prediction guidance for RNP authorization required approach (RNP AR APCH).
Airworthiness Approval of Enhanced Vision System, Synthetic Vision System, Combined Vision System, and Enhanced Flight Vision System Equipment
a. In this advisory circular (AC), the Federal Aviation Administration (FAA) provides guidance on airworthiness approval of enhanced vision system (EVS), synthetic vision system (SVS), combined vision system (CVS), and enhanced flight vision system (EFVS) equipment installation.
b. This AC provides specific system performance guidance on enhanced and synthetic vision systems and equipment. Other existing ACs address flight guidance symbology, head-up displays (HUD) and visual display characteristics (for example, AC 25-11A, Electronic Flight Deck Displays, and AC 25.1329-1B, Approval of Flight Guidance Systems). For a complete listing of related regulations and guidance, refer to appendix 9. This AC complements existing guidance.
c . In this AC, terrain awareness and warning system (TAWS) refers to a system used for fixed-wing aircraft and helicopter terrain awareness and warning system (HTAWS) refers to a system used for rotorcraft.
d. This AC is not mandatory and does not constitute a regulation. This AC describes an acceptable means, but not the only means, to install enhanced and synthetic vision technologies. However, if you use the means described in this AC, you must follow it in all aspects.
Airworthiness Approval of Automatic Dependent Surveillance - Broadcast OUT Systems
This advisory circular (AC) provides guidance for the installation and airworthiness approval of Automatic Dependent Surveillance - Broadcast (ADS-B) OUT systems in aircraft.
Airworthiness Approval of Attitude Heading Reference System (AHRS) Equipment
This advisory circular (AC) supplements existing airworthiness approval guidance for attitude heading reference system (AHRS) articles approved under technical standard order (TSO)?C201, Attitude Heading Reference System, or later revisions. TSO-C201 includes performance standards for non-gimbaled attitude, heading, and turn and slip systems.
|20-162||AIR-100||Airworthiness Approval and Operational Allowance of RFID Systems||09-22-2008|
|20-97B||AFS-306||Aircraft Tire Maintenance and Operational Practices This advisory circular (AC) provides recommended tire care and maintenance practices needed to assure the safety of support personnel and the continued airworthiness of aircraft. Specifically, this AC provides guidance on the installation, inflation, maintenance, and removal of aircraft tires. In addition, this AC provides guidance on those operational practices necessary to maintain safe aircraft operations. This AC is not mandatory and does not constitute a regulation. It is issued for guidance purposes and to outline acceptable tire maintenance and operational practices. In lieu of following this method without deviation, operators may elect to follow an alternative method that has also been found acceptable by the Federal Aviation Administration (FAA).||04-18-2005|
|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|
|20-74||AIR-120||Aircraft Position and Anticollision Light Measurements Contains useful information concerning measurements for intensity, covering, and color of aircraft position and anti-collision lights.||07-29-1971|
|20-30B||AIR-120||Aircraft Position Light and Anticollision Light Installations Sets forth acceptable means, but not the only means, of showing compliance with the Federal Aviation Regulations (FAR) applicable to installed position lights and anti-collision lights.||07-20-1981|
|20-161||AIR-130||Aircraft Onboard Weight and Balance Systems This Advisory Circular (AC)gives manufacturers and installers an acceptable means of compliance to meet the installation, operation, and airworthiness requirements for aircraft onboard weight and balance systems (OBWBS)||04-11-2008|
|20-106||AFS-340||Aircraft Inspection for the General Aviation Aircraft Owner Describes techniques used in aircraft inspections. Designed to familiarize owner, pilots, student mechanics, and others with inspection procedures, it does NOT qualify an individual to make airworthiness determinations.||04-01-1978|
|20-73A||AIR-120||Aircraft Ice Protection Provides information relating to the substantiation of ice protection systems on aircraft.||08-16-2006|
|20-43C||AFS-340||Aircraft Fuel Control Alerts the aviation community to the potential hazards of inadvertent mixing or contamination of turbine and piston fuels, and provides recommended fuel control and servicing procedures.||10-20-1976|
|20-103||AFS-340||Aircraft Engine Crankshaft Failure Provides information and suggests procedures to increase crankshaft service life and to minimize failures.||03-07-1978|
|20-67B||AIR-120||Airborne VHF Communication Equipment Installations||01-16-1986|
Airborne Software Assurance
a. This AC describes an acceptable means, but not the only means, for showing compliance with the applicable airworthiness regulations for the software aspects of airborne systems and equipment certification. This AC is not mandatory and is not a regulation. Other ACs may describe alternate means.
b. We, the Federal Aviation Administration (FAA), wrote this AC to recognize the following RTCA, Inc. documents (RTCA DO):
(1) RTCA DO-178C, Software Considerations in Airborne Systems and Equipment Certification, dated December 13, 2011.
(2) RTCA DO-330, Software Tool Qualification Considerations, dated December 13, 2011.
(3) RTCA DO-331, Model-Based Development and Verification Supplement to DO178C and DO-278A, dated December 13, 2011.
(4) RTCA DO-332, Object-Oriented Technology and Related Techniques Supplement to DO-178C and DO-278A, dated December 13, 2011.
(5) RTCA DO-333, Formal Methods Supplement to DO-178C and DO-278A, dated December 13, 2011.
Note: RTCA DO is hereafter referred to as DO.
c. References to use of DO-178C in this AC include use of supplements and DO-330 as applicable.
d. This AC also establishes guidance for transitioning to DO-178C when making modifications to software previously approved using DO-178, DO-178A, or DO-178B.
07/19/2013 AC 20-115C
e. This AC also explains the use of DO-178C for Technical Standard Order (TSO) authorizations.
f. This AC does not obligate the FAA to approve any data or perform any activities as specified within the referenced RTCA documents.
g. If you use the means in this AC as a means of compliance, you must follow it entirely.