Automated Weather Observing Systems(AWOS) for Non-Federal Applications
This advisory circular (AC) contains the Federal Aviation Administration’s (FAA) standard for the non-Federal AWOS. This AC applies to anyone proposing to design, procure, construct, install, activate or maintain an AWOS.
United States—Canadian Bilateral Aviation Safety Agreement Maintenance Implementation Procedures
This advisory circular (AC) provides information relating to the Bilateral Aviation Safety Agreement (BASA) and accompanying Maintenance Implementation Procedures (MIP) between the United States and Canada. This AC is not mandatory and does not constitute a regulation. This AC presents recommendations for an acceptable means, but not the only means, to comply with the current revision of the MIP.
Airmen Transition to Experimental or Unfamiliar Airplanes
This advisory circular (AC) provides information and guidance to owners and pilots of experimental airplanes and to flight instructors who teach in these airplanes. This information and guidance contains recommendations for training experience for pilots of experimental airplanes in a variety of groupings based on performance and handling characteristics. This AC does not address the testing of newly built experimental airplanes. The current edition of AC 90-89, Amateur-Built Aircraft and Ultralight Flight Testing Handbook, provides information on such testing. However, if a pilot is planning on participating in a flight-test program in an unfamiliar experimental airplane, this AC should be used to develop the skills and knowledge necessary to safely accomplish the test program using AC 90-89. This AC may also be useful in planning the transition to any unfamiliar fixed-wing airplanes, including type-certificated (TC) airplanes.
Airside Use of Heated Pavement Systems
Establishes minimum performance requirements for the design, construction, inspection, and maintenance of heated pavement systems for use in the Aircraft Operations Area (AOA).
Propeller Vibration and Fatigue
This advisory circular (AC) provides guidance and describes one method, but not the only method, for demonstrating compliance with §§ 23.907 and 25.907 of Title 14 of the Code of Federal Regulations (14 CFR) for the evaluation of vibratory stresses on propellers installed on airplanes. This evaluation uses fatigue and structural data obtained in accordance with 14 CFR part 35.
Propeller Fatigue Limits and Evaluation
This advisory circular (AC) provides guidance and describes methods, but not the only methods, for demonstrating compliance with § 35.37, Propeller fatigue limits and evaluation, of Title 14 of the Code of Federal Regulations (14 CFR).
Use of suitable Area navigation (RNAV) system on Conventional Routes and Procedures
This advisory circular (AC) provides operational and airworthiness guidance regrading the suitablity and use of RNAV systems while operating on or transitioning to, conventional i.e. non-RNAV, routes and procedures within the United States (US) National Airspace System (NAS).
Air Carrier Operational Approval and Use of TCAS II
This advisory circular (AC) provides an acceptable, but not the only, means to address Traffic Alert and Collision Avoidance System (TCAS) issues related to installation and use of TCAS II regarding compliance with Title 14 of the Code of Federal Regulations (14 CFR) parts 121, 125, and 129 requirements for air carriers.
Approval Guidance for RNP Procedures with Special Aircraft and Aircrew Authorization Required (SAAAR)
This advisory circular (AC) provides airworthiness and operational approval guidance material for aircraft operators conducting Title 14 of the Code of Federal Regulations (14 CFR) part 97 Area Navigation (RNAV) Required Navigation Performance (RNP) instrument approach procedures (IAP) with Authorization Required (AR), charted as "RNAV (RNP) RWY XX." Hereafter, refer to these procedures as "RNP AR" within this AC. Operational approvals obtained under the guidelines of this AC also apply to existing RNAV (RNP) IAP with special aircraft and aircrew authorization required (SAAAR). As current RNAV (RNP) SAAAR instrument approach charts are revised or amended, they will be updated to reflect AR.
WINGS - Pilot Proficiency Programs
The objective of the WINGS Pilot Proficiency Program is to reduce the number of accidents in General Aviation (GA) by assisting airmen to find educational opportunities designed to help them apply the principles of risk assessment and risk management (RM). When properly applied, these principles will help mitigate accident causal factors associated with common pilot errors, lack of proficiency, and faulty knowledge. The Federal Aviation Administration’s (FAA) purpose is to encourage the majority of GA pilots, through WINGS, to engage in ongoing, targeted flying tasks and learning activities keyed to identified risks and which are designed to mitigate those risks. The FAA continually collects and assesses its databases to identify the risks associated with GA flying and incorporates risk mitigation strategies into initial and ongoing pilot education.
Installation of TSOA Articles and LODA Appliances
Describes what you, as an installer, must show in a data package that is presented to the Federal Aviation Administration (FAA) through either a technical standard order authorization (TSOA) or TSO letter of design approval (LODA), under the provisions of Title 14 of the Code of Federal Regulations (14 CFR) part 21. This AC does not address aircraft repairs or alterations involving TSO articles under the provisions of 14 CFR part 43, nor does it address alterations to TSOA articles by repair stations under 14 CFR part 43. For the remainder of this document, the manufacturer of these articles will be referred to as a TSOA holder. Those seeking a design approval will be referred to as applicants.
This AC is not mandatory and is not a regulation. This AC describes an acceptable means, but not the only means, to comply with the applicable requirements. However, if you use the means described in this AC, you must follow it entirely.
Guidance for localizer performance with Vertical Guidance and Localizer
This advisory circular (AC) provides guidance for operators to conduct Title 14 of the Code of Federal Regulations (14 CFR) part 97 instrument flight rules (IFR) Area Navigation (RNAV) Global Positioning System (GPS) instrument approach procedures (IAP) with Localizer Performance with Vertical guidance (LPV) and Localizer Performance without vertical guidance (LP) lines of minima using the wide area augmentation system (WAAS).
Gaining Approval Of Seats With Integrated Electronic Components
a. This AC explains how to gain approval of aircraft seats with integrated electronic components and installed on aircraft. In it, we focus primarily on seats approved to a technical standard order (TSO). This AC applies to electronic components integrated into aircraft seats only. We don’t cover electronic components installed independent of the seat.
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 to install electronic components integrated in seats on aircraft. However, if you use the means described in the AC, you must follow it in all important respects.
Manufacturing Processes for Premium Quality Nickel Alloy for Engine Rotating Parts
This advisory circular (AC) provides information and guidance on compliance with the nickel materials suitability and durability requirements in part 33 of Title 14 of the Code of Federal Regulations (14 CFR part 33). The AC provides detailed guidance on the requirements of § 33.15 regarding the manufacture of premium quality nickel alloy for high-energy rotating parts for aircraft engines.
Continuous Descent Final Approach
This advisory circular provides guidance for all operators using the continuous descent final approach (CDFA)technique while conducting a nonprecision Approach (NPA) procedure. It describes the rationale for using the CDFA Technique, as well as recommended general procedures and training.
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.
Hand Fire Extinguishers for Use in Aircraft
This advisory circular (AC) gives you guidance for the fire-fighting effectiveness, selection and safe-use of hand fire extinguishers in airplanes and rotorcraft. In it we will also show you how to gain Federal Aviation Administration (FAA) approval of hand fire extinguishers for aircraft.
Damage Tolerance and Fatigue Evaluation of Structure
This advisory circular (AC) provides guidanc~ for compliance with the provisions of Title 14, Code of Federal Regulations (14 CFR) part 25, pertaining to the requirements for damage-tolerance and fatigue evaluation oftransport category aircraft structurce, including evaluation of widespread fatigue dam, age (VlFD) and establishing a limit of validity of the engineering data that supports the structural-maintenance program (hereafter referred to as the LOV).
Establishing and Implementing Limit of Validity to Prevent Widespread Fatigue Damage
This advisory circular (AC)offers guidance on compliance with Title 14 Code of Federal Regulations (14 CFR) 26.21, 26.23, 121.1115, and 129.115. It tells design approval holders of transport category airplanes how to establish a limit of validity of the engineering data that supports the structural maintenance program (hereafter referred to as LOV) for those airplanes. It also tells design approval holders how to address maintenance actions that have been determined necessary to support an LOV. It tells operators of those airplanes how to incorporate the LOV into their maintenance programs. Finally, this AC provides guidance to anyone wishing to extend an LOV. Guidance for establishing an LOV for airplanes whose type certificate was applied for after (XXXX) is contained in AC 25.571-1X. Guidance for extending an LOV approved under § 25.571, § 26.21, or § 26.23 can be found here. The actions described in this AC are meant to prevent widespread fatigue damage (WFD) in the transport airplane fleet up to the LOV.
Use of Remote On-Ground Ice Detection System
This advisory circular (AC) provides a standard means for a certificate holder to obtain approval for use of a Remote On-Ground Ice Detection System (ROGIDS). The purpose of this system is to identify clear ice after deicing as a replacement for or to augment the post-deicing visual and tactile check of aircraft surfaces. This approval is essential to the ground-deicing/anti-icing program contained within Title 14 of the Code of Federal Regulations (14 CFR) part 121, § 121.629, part 135, § 135.227, or part 125, § 125.221
Eligibility, Quality, & Identification of Aeronautical Replacement Parts
This advisory circular (AC) provides information and guidance for use in determining the quality, eligibility and traceability of aeronautical parts and materials intended for installation on U.S. type-certificated (TC) products and articles, and to enable compliance with the applicable regulations.
This Advisory Circular (AC) provides guidance for showing compliance with certain requirements of Title 14 of the Code of Federal Regulations (14 CFR), part 25, for the design approval of flightcrew-alerting functions
Engine System and Component Tests
This advisory circular (AC) provides guidance and acceptable methods, but not the only methods, that may be used to demonstrate compliance with the engine component and systems test requirements under Title 14 of the Code of Federal Regulations (14 CFR), part 33, specifically § 33.91, paragraphs (a) and (b).
Scope and Recommended Content for a Contractual Agreement Between an Air Carrier and a Contract Maintenance Provider
This advisory circular (AC) describes the scope and recommended content requirements for contractual agreements between an air carrier and a contract maintenance provider (CMP). It explains the background and the necessity to interject specific requirements into a contractual agreement to ensure the air carrier fully supports the requirements imposed by Title 14 Code of Federal Regulations (14 CFR). Because the air carrier has the primary responsibility for the airworthiness of its aircraft it must ensure the proper controls are in place to assess, qualify, and authorize work performed for it by other persons, regardless of whether the performance of work is by a certificated or noncertificated CMP.
Airport Avian Radar Systems
Provides guidance on the use of avian radar systems to supplement an airport’s Wildlife Hazard Management Plan (WHMP) and reduce the potential avian threats to aircraft.