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Number Office Title Date
108-1 ACS-3 Air Carrier Security Provides information and guidance for implementation of new FAR 108, Airplane Operator Security 10-16-1981
121-39 AFS-200 Air Carrier Pilot Remedial Training and Tracking Program

This advisory circular (AC) presents guidelines for developing and implementing remedial training and tracking of pilots. These guidelines apply to certificate holders conducting operations under Title 14 of the Code of Federal Regulations (14 CFR) part 121. This AC presents one way, but not necessarily the only way, that certificate holders may comply with the remedial training and tracking requirements prescribed in 14 CFR part 121, § 121.415. This AC may also provide valuable information to certificate holders in developing and implementing remedial training and tracking of other crewmembers and aircraft dispatchers.

120-55C AFS-400 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.

120-16F AFS-300 Air Carrier Maintenance Programs


This advisory circular (AC) explains what the term "maintenance program" means. Our explanation describes the scope and content of air carrier aircraft maintenance programs. This is important as there is a significant difference between an air carrier maintenance program and an inspection program used in non-air carrier maintenance operations. We explain the background of these programs as well as the Federal Aviation Administration’s (FAA) regulatory requirements. We also describe and explain each of the 10 elements of air carrier maintenance programs. When we use "must" or "will" in this AC, we are referencing actual regulatory requirements. When we use "we," "us," or "our" in this AC, we mean the FAA. When we use "you," "your," or "yours," we mean you, the air carrier. When we use the term "person," it has the same meaning as that in Title 14 of the Code of Federal Regulations (14 CFR) part 1, § 1.1.

120-59A AFS-230 Air Carrier Internal Evaluation Programs Provides information and guidance material that may be used by air carrier certificate holders, operating under Federal Aviation Regulations (FAR) Parts 121 and 135, to design or develop an Internal Evaluation Program. The procedures and practices outlined in this (AC can be applied to maintenance, flight operations, and security aspects of an air carrier’s organization. Internal evaluation guidance for certificate holders other than those operating under FAR Pars 121 and 135 may be issued separately in the future. 04-17-2006
120-44A AFS-203 Air Carrier First Aid Programs Provides guidance about first aid program resources, subjects, equipment, and pertinent regulations. This revision adds information about blood borne pathogen awareness programs. 06-06-2001
120-85A AFS-300 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.

  • The terms must and will are used in this AC to reflect regulatory requirements.
  • When this AC uses suggestive and permissive language (e.g., should and may), it is used to describe recommended or acceptable means, but not the only means, to comply with this AC.
120-84 AFS-309 Aging Aircraft Inspections and Records Reviews

This advisory circular (AC) provides guidance pertaining to aging aircraft inspections and records reviews accomplished to satisfy the requirements of the Aging Aircraft Safety Final Rule. This information represents an acceptable way, but not the only way, for an aging airplane inspection and records review to be conducted. However, if you use the means described in this AC, you must follow it in all important aspects.


Change 1 dated 01/15/2009

60-22 AFS-800 Aeronautical Decision Making Provides introductory material, background information, and reference material on aeronautical decision making. Provides a systematic approach to risk assessment and stress management in aviation, illustrates how personal attitudes can influence decision 12-13-1991
25.629-1B ANM-115 Aeroelastic Stability Substantiation of Transport Category Airplanes

This advisory circular (AC) provides guidance material for acceptable means, but not the only means, of demonstrating compliance with the provisions of Title 14, Code of Federal Regulations part 25 associated with the design requirements for transport category airplanes to preclude the aeroelastic instabilities offlutter, divergence, and control reversal. The precise details for analytical procedures and testing techniques are beyond the scope of this AC.  However, some general information is included, with supporting discussions, for consideration when demonstrating compliance with§ 25.629 and related regulations. Revision B incorporates changes only to the portions of this AC affected by the Airplane and Engine Certification Requirements in Supercooled Large Drop, Mixed Phase, and Ice Crystal Icing Conditions final ru

120-54A AFS-230 Advanced Qualification Program Provides FAA guidance for approval of an Advanced Qualification Program (AQP) under SFAR 58. 06-23-2006
121-25 AFS-224 Additional Weather Information: Domestic and Flag Air Carriers Provides guidance and standards to domestic and flag air carriers for approval of a system for obtaining forecasts and reports of adverse weather phenomena 09-16-1977
90-116 AFS-800 Additional Pilot Program for Phase I Flight Test

This advisory circular (AC) provides information and guidance on the Additional Pilot Program (APP) for flight testing experimental aircraft. The APP was developed to improve safety by enhancing Builder/Owner Pilot (BP) skills and mitigate risks associated with Phase I flight testing of aircraft built from commercially produced kits through the use of a qualified additional pilot and powerplant testing. The APP is an optional program which provides another pathway to conducting Phase I flight testing. The traditional option for a pilot to test their aircraft solo during Phase I is not covered or affected by this AC, and remains an option for those who choose to do so in accordance with their aircraft’s operating limitations.

25.672-1 ANM-110B Active Flight Controls Sets forth an equivalent means of complying with the provisions of Part 25 of the Federal Aviation Regulations (FAR) pertaining to the certification requirements of active flight controls. The procedures set forth herein apply to load alleviation systems (SAS), and flutter suppression systems (FSS). These procedures provide compliance with Part 25 under the equivalent safety provisions of Section 21.21(b)(1) in addition to compliance with the applicable sections of Part 25. 11-15-1983
91-48 AFS-820 Acrobatics-Precision Flying with a Purpose Provides information to persons who are interested in acrobatic flying to improve their piloting skills as recreation, sport, or as a competitive activity. 06-29-1977
20-60 ANM-110A Accessibility to Excess Emergency Exits Sets forth acceptable means of compliance with the “readily accessible” revisions in the Federal Aviation Regulations dealing with excess emergency exits. 07-18-1968
150/5360-14 AAS-100 Access to Airports By Individuals With Disabilities Assists airports in complying with the current laws and regulations governing individuals with disabilities by (1) identifying the relevant statutes and regulations that impact upon airports, (2) presenting in a single document the main features of each of the statutes and regulations, (3) providing legal citations to facilitate research, (4) listing sources of assistance or additional information, and (5) identifying Final Rules. It presents and reconciles the Federal accessibility regulations implementing the Americans with Disabilities Act of 1990 (ADA); the Air Carrier Access Act of 1986 (ACAA); the Rehabilitation Act of 1973, as amended (RA); and the Architectural Barriers Act of 1968, as amended (ABA), which affect the architectural or program accessibility of airports in the U.S. transportation system and employment opportunities on these airports for individuals with disabilities. 06-30-1999
20-153A AIR-130 Acceptance of Aeronautical Data Processes and Associated Databases

This AC will help you to:

(1) Obtain a Letter of Acceptance (LOA) from the Federal Aviation Administration (FAA) that acknowledges compliance with this AC regarding aeronautical data processing.

(2) Evaluate whether data processes comply with the requirements of RTCA, Inc. document DO-200A, Standards for Processing Aeronautical Data.

(3) Define the data quality requirements (DQRs) for aeronautical data when obtaining airworthiness approval of new equipment or installations where the function of the equipment is dependent on an updateable database.

(4) Understand how an organization adheres to the data preparation and data transmission criteria applicable to the functions performed by that aeronautical data chain link or participant.

120-78 AFS-300 Acceptance and Use of Electronic Signatures, Electronic Recordkeeping Systems, and Electronic Manuals This AC provides guidance on the acceptance and use of electronic signatures to satisfy certain operational and maintenance requirements. This AC also provides guidance on the acceptability of electronic recordkeeping systems and electronic maintenance manuals, including inspection procedures manuals, quality, operations manuals, and training manuals required by Title 14 of the Code of Federal Regulations (14 CFR). 10-29-2002
23-20 ACE-100 Acceptance Guidance on Material Procurement and Process Specifications for Polymer Matrix Composite Systems Provides information and guidance concerning an acceptable means, but not the only means, of compliance with Title 14 of the Code of Federal Regulations (14 CFR) part 23. It is applicable to the material and process specifications, or other documents, used to ensure sufficient control of composite prepreg materials in normal, utility, acrobatic, and commuter category airplanes. Material in this AC is neither mandatory nor regulatory in nature and does not constitute a regulation. 09-19-2003
43.13-1B AFS-640 Acceptable Methods, Techniques, and Practices - Aircraft Inspection and Repair [Large AC. This includes Change 1.]

This advisory circular (AC) contains methods, techniques, and practices acceptable to the Administrator for the inspection and repair of nonpressurized areas of civil aircraft, only when there are no manufacturer repair or maintenance instructions. This data generally pertains to minor repairs. The repairs identified in this AC may only be used as a basis for FAA approval for major repairs. The repair data may also be used as approved data, and the AC chapter, page, and paragraph listed in block 8 of FAA form 337 when:

a. the user has determined that it is appropriate to the product being repaired;

b. it is directly applicable to the repair being made; and

c. it is not contrary to manufacturer’s data.

43.13-2B AFS-300 Acceptable Methods, Techniques, and Practices - Aircraft Alterations 03-03-2008
150/5210-23 AAS-300 ARFF Vehicle and High Reach Extendable Turret (HRET) Operation, Training and Qualifications

Provides FAA standards and recommendations for the training of airport firefighting and rescue personnel in the proper operation and tactical use of Aircraft Rescue and Fire Fighting (ARFF) vehicles and ARFF vehicles equipped with High Reach Extendable Turret (HRETs). This guidance includes the development of department Standard Operating Guidelines (SOGs) and the development of department proficiency evaluation standards.

150/5190-4A APP-400 A Model Zoning Ordinance to Limit Height of Objects Around Airports

Provides a model zoning ordinance to be used as a guide to control the height of objects around airports. Editorially updated.

91-61 AFS-800/AAM-500 A Hazard in Aerobatics: Effects of G-Forces of Pilots Provides background information on G-forces, their effect on the human body and their role in safe flying, and offers suggestions for avoiding problems caused by acceleration encountered in aerobatic maneuvers. 02-28-1984

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