Specification for Runway and Taxiway Signs
This AC contains the FAA specifications for unlighted and lighted signs to be used on taxiways and runways.
Pilot Guide: Flight In Icing Conditions
This advisory circular (AC) contains updated and additional information for the pilots of airplanes under Title 14 of the Code of Federal Regulations (14 CFR) parts 91, 121, 125, and 135. The purpose of this AC is to provide pilots with a convenient reference guide on the principal factors related to flight in icing conditions and the location of additional information in related publications. As a result of these updates and consolidating of information, AC 91-74A, Pilot Guide: Flight in Icing Conditions, dated December 31, 2007, and AC 91-51A, Effect of Icing on Aircraft Control and Airplane Deice and Anti-Ice Systems, dated July 19, 1996, are cancelled. This AC does not authorize deviations from established company procedures or regulatory requirements.
Production Under 14 CFR Part 21,Subparts F, G, K, and O
This advisory circular (AC) provides information for production approval holders (PAH) pursuant to Title 14 of the Code of Federal Regulations (14 CFR) part 21, Certification Procedures for Products and Articles. This AC provides PAHs and applicants for a production approval with guidance for developing and maintaining a production system that is appropriate to the PAH’s operations and complies with the regulations.
Issuance of Export Airworthiness Approvals Under 14 CFR Part 21 Subpart L
This advisory circular (AC) provides guidance on how to show compliance with Title 14 of the Code of Federal regulations (14 CFR) part 21, subpart L, Export Airworthiness Approvals. This AC is not mandatory and does not constitute a regulation. This AC describes an acceptable means, but not the only means, to comply with these requirements. However, if you use the means described in this AC, you must follow it in all important respects.
Identification and Registration Marking
This advisory circular (AC) provides information about Title 14, Code of Federal Regulations (14 CFR), part 45, Identification and Registration Marking. This AC is not mandatory and does not constitute a regulation. This AC describes an acceptable means, but not the only means, to comply with the requirements for identifying aircraft and aircraft engines with identification plates, identification marking requirements for propellers, and marking aircraft with nationality and registration marks. However, if you use the means described in the AC, you must follow it in all important respects.
A list of other related sections of 14 CFR and related publications, and definitions pertinent to this AC are located in the appendixes to this AC.
Airworthiness and Operational Approval of Aircraft Network Security Program (ANSP)
This advisory circular (AC) describes an acceptable means, but not the only means, of obtaining operational authorization for an aircraft certified with a special condition (SC) related to security of the onboard computer network. This AC is not mandatory and does not constitute a regulation. However, if you use the means described in the AC, you must conform to it in totality.
Airport Data and Information Program
Note: The FAA is moving toward an electronic data submission system with the implementation of the FAA’s Navigation Procedures Project (NAV Lean) solution. Sections of this AC may be used as those portions of the system become available. In the interim, please refer to the current guidance provided in AC 150/5200-35A, Submitting the Airport Master Record in Order to Activate a New Airport for paper-based data submissions.
This AC provides general guidance and information for airport owners and operators in the collection and management of data describing the physical infrastructure, characteristics, and services of their airport. This data is source material for the FAA’s aeronautical information databases, for use in the dissemination of aviation information to the public, preparation of government and private industry aeronautical charts, and related flight information publications. This AC also describes the schedule, frequency, and standards for airport inspections.
Use of Child Restraint Systems on Aircraft
This advisory circular (AC) provides information and practices regarding the use of child restraint systems (CRS) on aircraft. The Federal Aviation Administration (FAA) intends for operators to use this as a resource during the development, implementation, and revision of an air carrier’s standard operating procedures (SOP), Web sites and training programs regarding the use of CRSs.
FAA Initiatives. This AC is one of several FAA initiatives designed to address safety concerns of the National Transportation Safety Board (NTSB). It is a part of the FAA’s ongoing commitment to educate and inform aircraft operators, crewmembers, and airline passengers regarding the use of CRSs on aircraft in order to encourage and increase the use of approved CRSs. For more information, refer to the following FAA Web site: http://www.faa.gov/passengers/fly_children/.
Regulatory Requirements. In addition, this AC provides information to air carriers conducting Title 14 of the Code of Federal Regulations (14 CFR) part 121 operations about the requirement to make available on their Web sites the width of the narrowest and widest passenger seats in each class of service for each make, model, and series (M/M/S) of airplane used in passenger-carrying operations. If an air carrier does not have a Web site, the air carrier is not required to establish a Web site in order to comply with this regulation.
Flight Standards Service Schedule of Charges Outside the United States
This advisory circular (AC) transmits an updated schedule of charges forservices of Federal Aviation Administration (FAA) Flight Standards Service (AFS) aviation safety inspectors (ASI) outside the United States. Rulemaking action to Title 14 of the Code of Federal Regulations (14 CFR) part 187, Docket No. 27809 and Notice 94-24, Fees for Certification Services and Approvals Performed Outside the United States, established the methodology for determining these charges. The rulemaking established that the FAA would publish these fees in an AC.
Quality Management for Federally Funded Airport Construction Projects
This advisory circular (AC) provides information on the planning and oversight of construction projects at airports accomplished under the FAA's Airport Improvement Program (AIP). In addition to the previous version, this AC cancels:
Ground Vehicle Operations to include Taxiing or Towing an Aircraft on Airports
This AC and its appendices provide guidance to airport operators about developing training programs for safe ground vehicle operations, personnel taxiing or towing an aircraft, and pedestrian control on the movement and safety areas of an airport.
This version represents a major rewrite. The AC now addresses aircraft being taxied by persons other than certificated pilots; adds a definition for Airport Operations Area; revises the definition for Non-Movement Area; replaces the term “Ramp” with “Apron” to harmonize with the International Civil Aviation Organization (ICAO) Annex 14 Volume 1; adds a definition for Vehicle or Pedestrian Deviation; provides guidance for towered airports on Part 139 requirements for people and equipment in the Runway Safety Area (RSA); calls for a Letter of Agreement at towered airports between the airport operator, the tower, and FAA Technical Operations; provides guidance on taxing and/or towing aircraft in the movement area by non-pilots; and incorporates numerous changes to format and content throughout the document.
Selection of Cyclic Redundancy Code and Checksum Algorithms to Ensure Critical Data Integrity
This advisory circular (AC) provides information about the availability of resource material on digital data integrity. This information is in the form of a research report entitled "Selection of Cyclic Redundancy Code and Checksum Algorithms to Ensure Critical Data Integrity," DOT/FAA/TC-14/49, dated March 2015. This report is provided for information only and, as such, is not intended as guidance but rather as reference material for the aviation industry.
Nationally Scheduled, FAA Approved, Industry Conducted Flight Instructor Refresher Course
This advisory circular (AC) provides information and standards for the preparation and approval of training course outlines (TCO) for Federal Aviation Administration (FAA)-approved, industry-conducted flight instructor refresher courses (FIRC) in accordance with Title 14 of the Code of Federal Regulations (14 CFR) part 61, § 61.197(a)(2)(iii). The intent of the FIRC program is to keep flight instructors informed of the changing world of General Aviation (GA) flight training and to enhance aviation safety through continued refresher training of the flight instructor cadre. Attending a FIRC is one of several methods by which a flight instructor may renew his or her flight instructor certificate. This AC provides one acceptable method by which the FAA may approve a FIRC program.
Operational Authorization Process for Use of Data Link Communication System
This advisory circular (AC) applies to all operators conducting data link operations and presents various methods for all air operators using data link systems to meet Federal Aviation Administration (FAA) and International Civil Aviation Organization (ICAO) Standards, to include as well-recommended practices. The AC introduces U.S. domestic Controller-Pilot Data Link Communication Departure Clearances (CPDLC-DCL) and the European LINK 2000+ CPDLC program. This revision also incorporates an expanded description of event reporting and defines the roles and responsibilities during the authorization process. It provides operational approval information for operators conducting operations under Title 14 of the Code of Federal Regulations (14 CFR) parts 91, 91 subpart K (part 91K), 121, 125, 129, 133, and 135. For complete airworthiness guidance for new aircraft and systems, refer to the current edition of AC 20-140, Guidelines for Design Approval of Aircraft Data Communications Systems Supporting Air Traffic Services (ATS). Authorizations to conduct data link operations approved under previous versions of AC 120-70 do not require further evaluation.
Use of Liquid Water Equivalent System to Determine Holdover Times or Check Times for Anti-Icing Fluids
This advisory circular (AC) provides guidance for the Federal Aviation Administration’s (FAA) standard for a Liquid Water Equivalent System (LWES). This AC applies to anyone proposing to design, procure, construct, install, activate, or maintain an LWES. An LWES is an automated weather measurement system that determines the Liquid Water Equivalent (LWE) rate in conditions of frozen or freezing precipitation. The LWE rate is used by the system with the appropriate endurance time (ET) regression equations and regression coefficients specified in an FAA-approved current database at http://220.127.116.11/RegressionInformation.html to determine the holdover time (HOT) or check time (CT) for an aircraft’s applied anti-icing fluid (Society of Automotive Engineer (SAE) Types I, II, III, and IV). Thus, the LWES incorporates a Holdover Time Determination System (HOTDS) or Check Time Determination System (CTDS). The HOT is used to determine how long a fluid would provide protection assuming that the current conditions do not change. The CT is used to determine the fluid’s current protection capability, while incorporating varying weather conditions.
|20-18B||ANE-111||Qualification Testing of Turbojet and Turbofan Engine Thrust Reversers This advisory circular (AC) provides guidance for demonstrating compliance with Title 14 of the Code of Federal Regulations (14 CFR) 33.97, Thrust reversers, and for certifying a thrust reverser for use with a turbojet or turbofan engine. It does not address aircraft-level effects of the installation and use of a thrust reverser.||07-07-2015|
Transition to Unfamiliar Aircraft
This advisory circular (AC) is intended to help plan the transition to any unfamiliar fixed-wing airplanes, including type-certificated (TC) and/or experimental airplanes. It provides information and guidance to owners and pilots of experimental, simple, complex, high-performance, and/or unfamiliar airplanes. It also provides information 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 to participate in a flight test program in an unfamiliar and/or experimental airplane, this AC should be used to develop the skills and knowledge necessary to safely accomplish the test program utilizing the guidance found in AC 90-89.
Air Cargo Operations
This advisory circular (AC) provides operators with recommended procedures for managing cargo operations. Developing and using these comprehensive procedures is key to establishing a safe and efficient cargo operation. The AC provides guidance for aircraft cargo loading systems (CLS), restraints, special cargo, and unit load devices (ULD)This AC is not mandatory and does not constitute a regulation. This AC describes an acceptable means, but not the only means, of complying with applicable regulations to manage cargo operations.
Programs for Training of Aircraft Rescue and Firefighting Personnel
This AC provides information on courses and reference materials for training of Aircraft Rescue and Firefighting (ARFF) personnel. This revision replaces Appendix 1 with an Addendum of Aircraft Rescue and Firefighting (ARFF) Training Facilities, which the FAA will update on a quarterly basis. It also removes the one minute time requirement for donning of Personal Protective Equipment and the Self-Contained Breathing Apparatus.
Certification and Operation of Aviation Maintenance Technician Schools
This advisory circular (AC) provides guidance to assist persons in obtaining and maintaining Federal Aviation Administration (FAA) certification of an Aviation Maintenance Technician School (AMTS). This AC is not mandatory and does not constitute a regulation. This AC describes acceptable means, but not the only means, to meet the requirements of Title 14 of the Code of Federal Regulations (14 CFR). However, if you choose to follow this AC as the means to meet the provisions of 14 CFR part 147, then you must follow the AC in its entirety. New content in AC 147-3B will provide part 147 AMTS applicants and currently certificated AMTSs with information concerning comprehensive detail of AMTS operations to include Distance Learning and Operations Specifications (OpSpec) informational guidance for industry.
Voluntary Industry Distributor Accreditation Program
This advisory circular (AC) describes a system for accrediting civil aircraft parts distributors based on voluntary industry oversight. The AC also provides information for developing accreditation programs. We, the Federal Aviation Administration (FAA), strongly endorse participation in such a program to help certificated persons establish the eligibility of parts and products for installation on U.S. type-certificated (TC) products. We have revised this AC to meet current changes in regulatory requirements and industry practices since original publication. This AC is not mandatory and does not constitute a regulation. Any mandatory language used in this AC applies only to those who choose to voluntarily participate in this program; those who do choose to participate must follow the processes and procedures described in this AC in their entirety to be considered compliant with this program.
Airworthiness Approval for ADS-B In Systems and Applications
This advisory circular (AC) provides guidance for the initial and follow-on installations of Automatic Dependent Surveillance – Broadcast (ADS-B) In systems supporting ground and airborne traffic applications. These applications are defined in TSO-C195b, Avionics Supporting Automatic Dependent Surveillance – Broadcast (ADS-B) Aircraft Surveillance Applications (ASA).
Conversion Process for Pilot Certificates in Accordance with the Implementation Procedures for Licensing as part of the Bilateral Aviation Safety Agreement Between the Federal Aviation Administration and Transport Canada Civil Aviation Authority for Pilot Licensing
This advisory circular (AC) provides the procedure and eligibility requirements for a Transport Canada Civil Aviation Authority (TCCA) pilot license holder converting to an Federal Aviation Administration (FAA) pilot certificate and an outline of the procedures and eligiblity requirments for an FAA pilot certificate holder converting to a TCCA pilot license. Pilots who are licensed by TCCA and comply with the special conditions listed within the Implementation Procedures for Licensing (IPL) are considered to be eligible for the associated FAA pilot certificate for airplane and/or rotorcraft–helicopter at the private, commercial, and airline transport pilot (ATP) levels including associated instrument ratings and applicable pilot type ratings. The procedure describes the FAA’s conditions for a TCCA pilot license conversion, the application process including required information, and considerations for exercising the privileges of an FAA pilot certificate. Adherence to this AC provides an acceptable method by which the FAA may convert a TCCA pilot license to an FAA pilot certificate.
Use of Portable Electronic Devices Aboard Aircraft
This advisory circular (AC) provides aircraft owners, operators, and the public with information and guidance for assistance in compliance with Title 14 of the Code of Federal Regulations (14 CFR) part 91, § 91.21. Section 91.21 was established because of the potential for portable electronic devices (PED) to interfere with aircraft navigation or communication systems. It prohibits the operation of PEDs not installed aboard U.S.-registered civil aircraft while operating under instrument flight rules (IFR). This rule permits the use of specified PEDs and other devices that the operator of the aircraft has determined will not interfere with the safe operation of that aircraft. The recommendations contained herein are one means, but not the only means, of complying with § 91.21 requirements pertaining to the operation of PEDs.
Instrument Flight Procedure Validation (IFPV) of Satellite-based Instrument Flight Procedures (IFPs)
This advisory circular (AC) provides guidance for conducting instrument flight procedure validation (IFPV) of satellite-based performance-based navigation (PBN) instrument flight procedures (IFP) for both fixed-wing and helicopter aircraft. It also addresses validation of helicopter wide area augmentation system (WAAS) special IFP. This AC supplements and does not change the requirements of Federal Aviation Administration (FAA) Order 8200.1, United States Standard Flight Inspection Manual. Ground validation, preflight validation (including simulator evaluation and obstacle assessment), and flight validation are described in this document.
The primary audience for this AC is non-FAA service providers performing IFPV. The secondary audience is Flight Standards Service Aviation Safety Inspectors and Air Traffic Organization (ATO) personnel within the FAA who are directly associated with the FAA IFPV process and/or charged with the responsibility to authorize and provide oversight of non-FAA IFPV service providers.