General Operating and Flight Rules
Water, Slush, and Snow on the Runway
Provides background and guidelines concerning the operation of turbojet aircraft with water, slush, and/or snow on the runway.
Cold Weather Operation of Aircraft
Provides background and guidelines relating to operation of aircraft in the colder climates where wide temperature changes may occur.
Altimeter Setting Sources
Provides the aviation public and industry with guidelines for setting up reliable altimeter setting sources.
Category II Operations - General Aviation Airplanes
Sets forth acceptable means by which Category II operations may be approved in accordance with FAR Parts 23, 25, 61, 91, 97, and 135.
|91-21||AFS-330||Use of Portable Electronic Devices Aboard Aircraft||10-02-2000|
Maintenance and Handling of Airdriven Gyroscopic Instruments
Advises operators of general aviation aircraft of the need for proper maintenance of air-driven gyroscopic instruments and associated air filters.
Safety in and Around Helicopters
This Advisory Circular (AC) provides safety guidelines for persons associated with helicopter operations and suggests ways to avoid hazards and reduce the risk of accidents. The information in this AC pertains primarily to helicopter operations conducted under the provisions of Title 14 of the Code of Federal Regulations (14 CFR) part 91; however, the safety considerations discussed may be applicable to all helicopter operations.
Use of Alternate Grades of Aviation Gasoline for Grade 80/87, and Use of Automotive Gasoline
Provides information relating to the use of alternate grades of gasoline when grade 80/87 aviation is not available and the resultant effects of the use of the alternate fuels which have higher TEL (tetraethyl lead) content. Suggestions are offered as acceptable means of avoiding engine operating difficulties when using alternate fuels. This circular also provides suggestions for added safety in the use of automotive gasoline in those aircraft engines and aircraft covered by Supplemental Type Certificates (STCs).
Noise, Hearing Damage, and Fatigue in General Aviation Pilots
Acquaints pilots with the hazards of regular exposure to cockpit noise. Especially pertinent are piston-engine, fixed-wing, and rotary-wing aircraft.
Visual Flight Rules (VFR) Flight Near Noise-Sensitive Areas
Encourages pilots making VFR flights near noise-sensitive areas to fly at altitudes higher than the minimum permitted by regulation and on flight paths, which will reduce aircraft noise in such area.
Truth in Leasing
Provides information and guidance for lessees and conditional buyers of U.S. registered large civil aircraft. If you are planning to charter an airplane take a moment to learn about chartered and leased aircraft.
Hazards of Rotating Propeller and Helicopter Rotor Blades
Updates statistical information on propellers-and rotor-to-person accidents and offers suggestions to reduce the frequency of such accidents.
Unreliable Airspeed Indications
Alerts pilots to the possibility of erroneous airspeed/Mach indications that may be caused by blocking or freezing of the pilot system and advises of corrective action that can be taken.
Operational and Maintenance Practices for Emergency Locator Transmitters and Receivers
Combines and updates material in several Advisory Circulars on the subject of emergency locator transmitters (ELT) receivers for airborne service.
Waivers: Aviation Events
Provides prospective aviation event sponsors and other interested parties with information necessary to assist in planning and conducting a safe aviation event. In addition, it provides information on the application process for a certificate of Waiver or Authorization.
Gyroscopic Instruments - Good Operating Practices
Issued to re-emphasize to general aviation instrument-rated pilots the need to determine the proper operation of gyroscopic instruments, the importance of instrument crosschecks and proficiency in partial-panel operations.
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.
General Aviation Procedures for Flight in North Atlantic Minimum Navigation Performance Specifications Airspace
Sets forth acceptable means, but not the only means, of obtaining authorization to operate within specified airspace over the North Atlantic, designated as the NAT (North Atlantic) MNPS (Minimum Navigation Performance Specifications) airspace, after 0001 Greenwich Mean Time, Dec. 29, 1977. This requirement applies to persons operating under FAR Part 91 and for FAR Part 135 certificate holders, except those operating under Section 135.2.
Importance of Transponder Operation and Altitude Reporting
Provides information and guidance concerning the importance of transponder operation and altitude reporting in the National Airspace System.
Effect of Icing on Aircraft Control and Airplane Deice and Anti-Ice Systems
Provides information for pilots regarding the hazards of aircraft icing and the use of airplane deice and anti-ice systems.
Noise Abatement Departure Profile
Describes acceptable criteria for safe noise abatement departure profiles (NADP) for subsonic turbojet-powered airplanes with a maximum certificated gross takeoff weight of more than 75,000 pounds. These procedures provide the user with one means, although not the only means, of establishing acceptable NADP’s. These departure profiles are consistent with the airworthiness standards required by the Federal Aviation Regulations Part 25 for type certification and Part 91 for general airplane operations.
Automatic Reporting Systems Altimeter Setting and Other Operational Data
Provides guidelines for the development and installation of automatic reporting systems for altimeter setting and other operational data intended for use in connection with IFR operations.
Reduction of Electrical System Failures following Aircraft Engine Starting
Warns general aviation aircraft owner/pilots and maintenance personnel of possible total electrical system failure following aircraft engine starting.
Continuing Structural Integrity Program for Airplanes
Provides guidance material to manufacturers and operators of transport category airplanes for use in developing a continuing structural integrity program to ensure safe operation of older airplanes throughout their operational lives. This guidance material applies to large transport airplanes which were certified under the fail-safe and fatigue requirements of Civil Air Regulations (CAR) 4b o 14 CFR part 25 of the Federal Aviation Regulations (FAR), prior to Amendment 25-45, and which have a maximum gross weight greater than 75,000 pounds. Guidance material on this subject for other transports is provided in AC 91-60. The procedures set forth by this AC are applicable to the large transport category airplanes operated under Subpart D of part 91, and parts 121 and 125.
Model Aircraft Operating Standards
Outlines, and encourages voluntary compliance with, safety standards for model aircraft operators.