|120-17A||AFS-330||Maintenance Control by Reliability Methods Provides information and guidance materials which may be used to design or develop maintenance reliability programs utilizing reliability control methods.||03-27-1978|
|120-39||AFS-331||Hazards of Waste Water Ice Accumulation Separating from Aircraft in Flight This advisory circular emphasizes the potential hazards to life and property due to lavatory fluid and potable water systems’ ice accumulation and resultant separation from aircraft in flight.||10-31-1980|
|120-28D||AFS-400||Criteria for Approval of Category III Weather Minima for Takeoff, Landing, and Rollout States an acceptable means, not the only means, for obtaining approval of Category III Landing Weather Minima and low visibility takeoff, including the installation and approval of associated aircraft systems.||07-13-1999|
|120-29A||AFS-400||Criteria for Approval of Category I and Category II Weather Minima for Approach This AC provides an acceptable means, but not the only means, for obtaining and maintaining approval of CAT I & II Weather Minima including the installation and approval of associated aircraft systems.||08-12-2002|
|120-33||AFS-400||Operational Approval of Airborne Long-Range Navigation Systems for Flight within the North Atlantic Minimum Navigation Performance Specifications Airspace Sets forth acceptable means, but not the only means, for operators certificated under FAR Parts 121 and 123 and operators utilizing large aircraft under FAR 135.2, to obtain approval to operate within a specific airspace over the NAT (North Atlantic) MNPS (Minimum Navigation Performance Specifications) airspace after 0001 Greenwich Mean Time, Dec. 29, 1977.||06-24-1977|
|120-41||AFS-400||Criteria for Operational Approval of Airborne Wind Shear Alerting and Flight Guidance Establishes an acceptable means, but not the only means, of obtaining operational approval of an airborne wind shear alerting and flight guidance system. It describes acceptable simulation test criteria, wind field modeling data, and minimum performance parameters for evaluating candidate systems.||11-07-1983|
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.
|120-57A||AFS-400||Surface Movement Guidance and Control System Describes the standards and provides guidance in the development of a Surface Movement Guidance and Control System (SMGCS) plan for U.S. airports where scheduled air carriers are authorized to conduct operations when the visibility is less than 1,200 feet runway visual range.||12-19-1996|
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.
Guidelines for the Certification, Airworthiness, and Operational Use of Electronic Flight Bags
This joint Flight Standards Service (AFS) and Aircraft Certification Service (AIR) advisory circular (AC) contains guidance on the operational use of Electronic Flight Bags (EFBs). It is intended for all operators conducting flight operations under Title 14 of the Code of Federal Regulations (14 CFR) part 121, 125, 135, or 91 subpart F (part 91F) and part 91 subpart K (part 91K) who want to replace required paper information or utilize other select functions of an EFB. This AC sets forth an acceptable means, but not the only means, to obtain Federal Aviation Administration (FAA) authorization for the operational use of EFBs. Part 91 operators can find additional EFB information in the current edition of AC 91-78, Use of Class 1 or Class 2 Electronic Flight Bag (EFB). For guidance on the installation of EFB components, refer to the current edition of AC 20-173, Installation of Electronic Flight Bag Components.
|120-91||AFS-400||Airport Obstacle Analysis Describes acceptable methods and guidelines for developing takeoff and initial climb-out airport obstacle analyses and in-flight procedures to comply with the intent of the regulatory requirements of Title 14 of the Code of Federal Regulations part 121,§§ 121.177, 121.189, and part 135, §§ 135.367, 135.379 and powered airplanes operated under parts 121 and 135||05-05-2006|
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.
Foreign Terminal Instrument Procedures (FTIP) Acceptance/Review
This advisory circular (AC) establishes guidelines for U.S. operators to use when reviewing Foreign Terminal Instrument Procedures (FTIP). Occasionally, the author uses the word "must" or similar language when he deems the desired actions critical. The Federal Aviation Administration (FAA) does not intend for the use of such language to add to, interpret, or relieve a duty imposed by Title 14 of the Code of Federal Regulations (14 CFR).
|120-12A||AFS-820||Private Carriage Versus Common Carriage of Persons or Property Furnishes FAA personal and interested segments of industry with general guidelines for determining whether current or proposed transportation operations by air constitute private or common carriage.||04-24-1986|
ICAO Aircraft Company Three-LetterIdentifier and/or TelephonyDesignator Assignment and U.S. Special Telephony/Call Signs
Advisory Circular 120-26K defines the criteria and procedures for obtaining an International Civil Aviation Organization (ICAO) three-letter identifier and/or telephony designator assignment and for obtaining an FAA Special or Local telephony/call sign.
|120-73||ANM-100||Damage Tolerance Assessment of Repairs to Pressurized Fuselages Provides guidance to operators of certain transport category airplanes operated under 14 CFR Parts 91, 121, 125, and 129. The guidance provides an acceptable means of compliance with the regulations that require incorporating FAA-approved “repair assessment guidelines” into an operator’s FAA-approved maintenance or inspection program. The means of compliance described is intended to provide guidance to supplement the engineering and operational judgment that must form the basis of any compliance findings relative to repair assessments for pressurized fuselages.||12-14-2000|
|120-93||ANM-100||Damage Tolerance Inspections for Repairs and Alterations This advisory circular (AC) provides guidance material for Type Certificate (TC) Holders, Supplemental Type Certificate (STC) Holders, and operators to comply with requirements in the Aging Airplane Safety Act to ensure the airworthiness of aging airplane parts and components. The Aging Airplane Safety Rule that supports the Act specifies incorporating damage tolerance-based inspections into an operator’s continuous airworthiness maintenance program. These inspections will help ensure the integrity of fatigue critical structure on transport category airplanes operated in air transportation. This guidance will provide persons who have developed repairs and alterations with a means to develop damage tolerance data to be used to determine damage tolerance inspections for repairs and alterations that affect fatigue critical structure. This AC will give guidance on developing compliance documents, schedules and plans that will assist in developing and incorporating damage tolerance inspections into maintenance programs of certain transport category airplanes with respect to repairs and alterations.||11-20-2007|
|120-94||ANM-100||Aircraft Electrical Wiring Interconnection Systems Training Program||11-20-1997|
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.