Advisory Circulars
Aircraft
| Number | Office | Title | Date |
|---|---|---|---|
| 20-111 | AFS-350 |
Communication Interference Caused by Unintentional Keyed Microphones
Alerts the aviation community to the potential hazards created by unintentional keying of microphones resulting in radio transmissions from airborne, mobile, and ground based radio transmitters and gives guidance on alleviating ensuing hazards.
|
10-10-1980 |
| 20-34D | AFS-340 |
Prevention of Retractable Landing Gear Failures
Updates statistical information related to landing accidents involving aircraft with retractable landing gear and suggests procedures to minimize those accidents.
|
08-08-1980 |
| 20-35C | AFS-340 |
Tiedown Sense
Provides updated information of general use on aircraft tie down techniques and procedures.
|
07-12-1983 |
| 20-43C | AFS-340 |
Aircraft Fuel Control
Alerts the aviation community to the potential hazards of inadvertent mixing or contamination of turbine and piston fuels, and provides recommended fuel control and servicing procedures.
|
10-20-1976 |
| 20-103 | AFS-340 |
Aircraft Engine Crankshaft Failure
Provides information and suggests procedures to increase crankshaft service life and to minimize failures.
|
03-07-1978 |
| 20-105B | AFS-340 |
Reciprocating Engine Power-Loss Accident Prevention and Trend Monitoring
Updates statistical information and brings to the attention of aircraft owners, operators, manufacturers, and maintenance personnel the circumstances surrounding engine power-loss accidents with recommendations on how those accidents can be prevented.
|
06-15-1998 |
| 20-106 | AFS-340 |
Aircraft Inspection for the General Aviation Aircraft Owner
Describes techniques used in aircraft inspections. Designed to familiarize owner, pilots, student mechanics, and others with inspection procedures, it does NOT qualify an individual to make airworthiness determinations.
|
04-01-1978 |
| 20-122A | AFS-340 |
Anti-misfueling Devices: Their Availability and Use
Includes information relating to the Society of Automotive Engineers (SAE) standard dimensions for fueling ports now being incorporated during new aircraft production by all General Aviation Manufacturer’s Association member companies. It also makes recommendations to the fuel suppliers and Fixed Base Operators to change their fuel dispensing nozzles to meet the dimensions referenced in the SAE standard.
|
01-29-1991 |
| 20-125 | AFS-340 |
Water in Aviation Fuels
Alerts the aviation community to the potential hazards of water in aviation fuels. Additionally, it outlines recommended procedures to prevent, detect, and eliminate water in the fuel systems of aircraft.
|
08-12-1997 |
| 20-48 | AFS-330 |
Practice Guide for Decontaminating Aircraft
The title is self-explanatory.
|
05-05-1966 |
| 20-76 | AFS-330 |
Maintenance Inspection Notes for Boeing
Provides maintenance inspection notes which can be used for the maintenance support program for certain structural parts of the B-707/720 series aircraft.
|
10-21-1971 |
| 20-78 | AFS-330 |
Maintenance Inspection Notes for McDonnell Douglas DC-8 Series Aircraft
Provides maintenance inspection notes which can be used for the maintenance support program for certain structural parts of the DC-8 series aircraft. |
07-11-1972 |
| 20-123 | AFS-330 |
Avoiding or Minimizing Encounters with Aircraft Equipped with Depleted Uranium Balance Weights during Accident Investigations
Provides information and guidance to individuals who come in contact with depleted uranium contained in aircraft control surfaces during accident investigations.
|
12-20-1984 |
| 20-142 | AFS-307 |
Eligibility and Evaluation of U.S. Military Surplus Flight Safety Aircraft Parts, Engines, and Propellers
Provides information and guidance for use in evaluating and determining the eligibility of U.S. military surplus flight safety critical aircraft parts (FSCAP), engines, and propellers for installation on FAA type-certificated products.
|
02-25-2000 |
| 20-97B | AFS-306 |
Aircraft Tire Maintenance and Operational Practices
This advisory circular (AC) provides recommended tire care and maintenance practices needed to assure the safety of support personnel and the continued airworthiness of aircraft. Specifically, this AC provides guidance on the installation, inflation, maintenance, and removal of aircraft tires. In addition, this AC provides guidance on those operational practices necessary to maintain safe aircraft operations. This AC is not mandatory and does not constitute a regulation. It is issued for guidance purposes and to outline acceptable tire maintenance and operational practices. In lieu of following this method without deviation, operators may elect to follow an alternative method that has also been found acceptable by the Federal Aviation Administration (FAA).
|
04-18-2005 |
| 20-62E | AFS-300 |
Eligibility, Quality, & Identification of Aeronautical Replacement Parts
This advisory circular (AC) provides information and guidance for use in determining the quality, eligibility and traceability of aeronautical parts and materials intended for installation on U.S. type-certificated (TC) products and articles, and to enable compliance with the applicable regulations. |
12-23-2010 |
| 20-154 | AFS-300 |
Guide for Developing a Receiving Inspection System for Aircraft Parts and Material
Provides guidance and information for incorporation into operators' existing receiving/inspection systems to help prevent the introduction of unairworthy parts into inventories.
|
12-12-2005 |
| 20-117 | AFS-200 |
Hazards Following Ground Deicing and Ground Operations in Conditions Conducive to Aircraft Icing
Provides information on the identified hazards associated with ground deicing and ground operations in conditions conducive to aircraft icing.
|
12-03-1982 |
| 20-32B | ACE-110 |
Carbon Monoxide (CO) Contamination in Aircraft Detection and Prevention
Provides information on the potential dangers of carbon monoxide contamination from faulty engine exhaust systems or cabin heaters of the exhaust gas heat exchanger type.
|
11-24-1972 |
| 20-40 | ACE-100 |
Placards for Battery-Excited Alternators Installed in Light Aircraft
Sets forth an acceptable means of complying with placarding rules in Federal Aviation Regulations 23 and 27 with respect to battery excited alternator installations.
|
08-11-1965 |
| 20-44 | ACE-100 |
Glass Fiber Fabric for Aircraft Covering
Provides a means, but not the sole means, for acceptance of glass fiber fabric for external covering of aircraft structure.
|
09-03-1965 |
| 20-45 | ACE-100 |
Safetying of Turnbuckles on Civil Aircraft
Provides information on turnbuckle safetying methods that have been found acceptable by the FAA during past aircraft type certification programs.
|
09-17-1965 |
| 20-113 | ACE-100 |
Pilot Precautions and Procedures to be taken in Preventing Aircraft Reciprocating Engine Induction System and Fuel System Icing Problems
Provides information pertaining to aircraft engine induction system icing and the use of fuel additives to reduce the hazards of aircraft operation that may result from the presence of water and ice in aviation gasoline and aircraft fuel systems.
|
10-22-1981 |
| 20-116 | ACE-100 |
Marking Aircraft Fuel Filler Openings with Color Coded Decals
Discusses the conditions under which color coded decals may be used to comply with the requirements in FAR Parts 23, 25, 27, and 29 for marking fuel filler openings.
|
09-17-1982 |
| 20-118A | ACE-100 |
Emergency Evacuation Demonstration
Sets forth acceptable means, but not the only means, of showing compliance with the Federal Aviation Regulations (FAR) applicable to required emergency evacuation demonstrations from airplanes certified to the requirements of SFAR 23, SFAR 41, Appendix A of Part 135, or Part 23, commuter category.
|
03-09-1987 |



