|90-34||AFS-840||Accidents Resulting from Wheelbarrowing in Tricycle Gear Equipped Aircraft Explains “wheel barrowing”, the circumstances under which it is likely to occur, and recommended corrective action.||02-27-1968|
Aircraft Wake Turbulence
This advisory circular (AC) presents basic information on wake vortex behavior, alerts pilots to the hazards of aircraft wake turbulence, and recommends operational procedures to avoid wake turbulence encounters.
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.
|90-102A||AJR-1||Airspace Flow Program This Advisory Circular replaces AC 90-102 and provides guidance to customers of the National Airspace System (NAS) regarding changes to the traffic management process for managing flights through a constrained area with an Airspace Flow Program (AFP). In this process, traffic managers identify a constraint in the en route system, develop a real-time list of flights that are filed into the constrained area, and implement an AFP. Pilots need to be aware that an AFP distributes expect departure clearance times (EDCT) in order to meter air traffic demand through the area. Examples of constraints include thunderstorm activity, turbulence, and periods of excess demand. The list of flights includes aircraft that have filed flight plans, filed early intent flight plans, or operate in the constrained area based on historical flight plan data.||05-30-2008|
|90-102||AJR-1||Airspace Flow Program||05-01-2006|
|90-89A||AFS-340||Amateur-Built Aircraft and Ultralight Flight Testing Handbook Provides suggestions and safety-related recommendations to assist amateur and ultra-light builders in developing individualized aircraft flight test plans. It includes flight testing recommendations for canard-type and ultra-light aircraft. SN 050-007-01087-7||05-24-1995|
|90-105||AFS-400||Approval Guidance for RNP Operations and Barometric Vertical Navigation in the U.S. National Airspace System||01-23-2009|
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.
Approval of Area Navigation Systems for use in the U.S. National Airspace System
Provides guidelines for implementation of two-dimensional area navigation (2D RNAV) within the U.S. National Airspace System (NAS). Provides for both VOR/DME dependent systems and self-contained systems such as Inertial Navigation Systems (INS).
AC 20-138C - Airworthiness Approval of Positioning and Navigation Systems supersedes the airworthiness considerations in AC 90-45A, Approval of Area Navigation Systems for use in the U.S. National Airspace System. Equipment previously approved per the airworthiness guidance in AC 90-45A is still valid for the operations and conditions stated in their approvals.
|90-80B||AFS-420||Approval of Offshore Standard Approach Procedures (OASP), Airborne Radar Approaches (ARA), and Helicopter En Route Descent Areas (HEDA) Provides criteria and describes methods for obtaining to use Offshore Standard Approach Procedures, Airborne Radar Approaches, and Helicopter Enroute Areas.||04-12-1992|
Approval of U.S. Operators and Aircraft to Operate Under Instrument Flight Rules (IFR) in European Airspace Designated for Basic Area Navigation (B-RNAV) and Precision Area Navigation (P-RNAV)
Provides guidance regarding on-board Area Navigation (BRNAV) equipment requirements for operators of U.S. registered civil aircraft, operating in a Basic Area Navigation (BRNAV) environment in the European region.
Automatic Dependent Surveillance-Broadcast (ADS-B) Operations
The Federal Aviation Administration (FAA) has issued a new rule contained in Title 14 of the Code of Federal Regulations (14 CFR) part 91, §§ 91.225 and 91.227. This rule requires Automatic Dependent Surveillance-Broadcast (ADS-B) Out performance when operating in designated classes of airspace within the U.S. National Airspace System (NAS) after January 1, 2020. This advisory circular (AC) provides users of the NAS guidance on a means of conducting flight operations in accordance with §§ 91.225 and 91.227. The Aeronautical Information Manual (AIM) provides an overview of, and the appendices in this AC provide guidance for, additional operations enabled by ADS-B. Appendix 2 contains a list of ADS-B-related definitions.
The intent of this advisory circular is to facilitate operation using Automatic Dependent Surveillance -Broadcast (ADS) technology in compliance with Title 14 of the Code of Federal Regulation (14 CFR) part 91, &&91.225 and 91.227, which are effective after January 1, 2020.
Development and Submission of Special Instrument Procedures to the FAA
This Advisory Circular (AC) provides guidance for the submission and approval of special instrument flight procedures that are developed by non-government proponents and submitted to the Federal Aviation Administration (FAA) for review and approval. Special instrument procedures are those procedures developed for specific users and are not processed under Title 14, Code of Federal Regulations (14 CFR), Part 97. Occasionally, the word “must” or similar language is used within this AC where the desired action is deemed critical. The use of such language is not intended to add to, interpret, or relieve a duty imposed by 14 CFR.
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).
|90-87||AFS-840||Helicopter Dynamic Rollover Familiarize the helicopter pilot/instructor and pilot school personnel of the hazards associated with dynamic rollover.||01-27-1986|
|90-99||ATA-301||High Altitude Airspace Redesign Phase 1||09-22-2003|
Instrument Flight Procedure Validation (IFPV) of Satellite-based Instrument Flight Procedures (IFP)
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. This also addresses validation of helicopter wide area augmentation system (WAAS) special IFP. This document supplements and does not change the requirements of FAA Order 8200.1, United States Standard Flight Inspection Manual. It describes ground validation, preflight validation (including simulator evaluation and obstacle assessment), and flight validation.
|90-67B||ATP-129||Light Signals from the Control Tower for Ground Vehicles, Equipment, and Personnel Provides the aviation community with the meaning of the light signals used when communicating with ground vehicles, equipment, and personnel on the airport movement area from the control tower.||08-25-1994|
|90-91K||AJR-1||North American Route Program Provides guidance to users of the National Air Space System for participation in the North American Route Program (NRP).||12-11-2008|
|90-93A||ATP-40||Operating Procedures for Airport Traffic Control Towers (ATCT) that are not Operated by, or Under Contract with, the United States (Non-Federal) Recommends publications, administrative and operational procedures that will assist in the management of a non-federal ATCT (NFCT).||11-15-1999|
|90-48C||AFS-820||Pilots' Role in Collision Avoidance Alerts all pilots to the potential hazards of midair collision and near midair collision, and to emphasize those basic problem areas related to the human causal factors where improvements in pilot education, operating practices, procedures, and improved scanning techniques are needed to reduce midair conflicts.||03-18-1983|
|90-66A||AFS-820||Recommended Standards Traffic Patterns for Aeronautical Operations at Airports without Operating Control Towers Calls attention to regulatory requirements and recommended procedures for aeronautical operations at airports without operating control towers. It recommends traffic patterns and operational procedures for aircraft, lighter than air, glider, parachute, rotorcraft, and ultra-light vehicle operations where such use is not in conflict with existing procedures in effect at those airports.||08-26-1993|
|90-103||AJR-0||Reporting of Threats in Accordance with the Common Strategy||09-11-2006|
|90-50D||ASR-520||Requirements for 760-Channel VHF Radio for Aeronautical Operations Encourages aircraft owners to upgrade their air-ground radio communication systems. Describes and upgrades civil air traffic control frequencies in the very high frequency (118.000 to 136.975 MHz) band. The 136.000 to 136.975 MHz band became available for aeronautical use on January 1, 1990.||04-09-1992|
|90-75||AFS-310||Strobe Light System Inspection Advises the general aviation community of the importance of proper maintenance of capacitive discharge strobe light systems which are installed within or near fuel systems.||02-10-1977|