Current Advisory Circulars by Number
 
 

AC NumberCan be sorted ascending or descendingChange/Desc.Can be sorted ascending or descendingDateSorted ascending, can be sorted descendingSubjectCan be sorted ascending or descending
AC 91.11-1AC 91.11-1 1963071907/19/1963Guide to Drug Hazards in Aviation Medicine
AC 29-1AC 29-1CHG 11963122612/26/1963Approval Basis for Automatic Stabilization Equipment (ASE) Installation in Rotorcraft
AC 00-25AC 00-25 1965010101/01/1965Forming and Operating a Flying Club
AC 20-40AC 20-40 1965081108/11/1965Placards for Battery-Excited Alternators Installed in Light Aircraft
AC 20-44AC 20-44 1965090309/03/1965Glass Fiber Fabric for Aircraft Covering
AC 20-45AC 20-45 1965091709/17/1965Safetying of Turnbuckles on Civil Aircraft
AC 121-6AC 121-6 1966010501/05/1966Portable Battery-Powered Megaphones
AC 20-38AAC 20-38A 1966020802/08/1966Measurement of Cabin Interior Emergency Illumination in Transport Airplanes
AC 20-47AC 20-47 1966020802/08/1966Exterior Colored Band around Exits on Transport Airplanes
AC 25-4AC 25-4 1966021802/18/1966Inertial Navigation System (INS)
AC 20-18AAC 20-18A 1966031603/16/1966Qualification Testing of Turbo-jet Engine Thrust Reversers
AC 20-48AC 20-48 1966050505/05/1966Practice Guide for Decontaminating Aircraft
AC 211-2AC 211-2 1967032003/20/1967Recommended Standards for IFR Aeronautical Charts
AC 91-16AC 91-16 1967080708/07/1967Category II Operations - General Aviation Airplanes
AC 20-52AC 20-52CHG 11967082408/24/1967Maintenance Inspection Notes for Douglas DC 6/7 Series Aircraft
AC 90-34AC 90-34 1968022702/27/1968Accidents Resulting from Wheelbarrowing in Tricycle Gear Equipped Aircraft
AC 20-60AC 20-60 1968071807/18/1968Accessibility to Excess Emergency Exits
AC 33-3AC 33-3 1968090909/09/1968Turbine and Compressor Rotors Type Certification Substantiation Procedures
AC 170-9AC 170-9 1968112611/26/1968Criteria for Acceptance of Ownership and Servicing of Civil Aviation Interest(s) Navigational and Air Traffic Control Systems and Equipment
AC 91-26AC 91-26 1969070207/02/1969Maintenance and Handling of Airdriven Gyroscopic Instruments
AC 21-4BAC 21-4B 1969073007/30/1969Special Flight Permits for Operation of Overweight Aircraft
AC 20-64AC 20-64 1969080108/01/1969[Large AC] Maintenance Inspection Notes for Lockheed L-188 Series Aircraft
AC 25.1457-1AAC 25.1457-1A 1969110311/03/1969Cockpit Voice Recorder Installations
AC 39-1AAC 39-1A 1970030503/05/1970JIG Fixtures; Replacement of Wing Attach Angles and Doublers on Douglas DC-3 Series Aircraft, Airworthiness Directive 66-18-2
AC 33-1BAC 33-1B 1970042204/22/1970Turbine Engine Foreign Object Ingestion and Rotor Blade Containment Type Certification Procedures
AC 20-69AC 20-69 1970051405/14/1970Conspicuity of Aircraft Instrument Malfunction Indicators
AC 25-5AC 25-5 1970060306/03/1970Installation Approval on Transport Category Airplanes of Cargo Unit Load Devices Approved as Meeting the Criteria in NAS 3610
AC 170-11AC 170-11 1970091709/17/1970Amendment of Federal Aviation Regulation Part 171 (FAR-171) - Cost of Flight and Ground Inspections
AC 121-16AC 121-16 1970110911/09/1970Maintenance Certification Procedures
AC 20-71AC 20-71 1970120812/08/1970Dual Locking Devices on Fasteners
AC 121-13AC 121-13CHG 21970122112/21/1970Self-Contained Navigation Systems
AC 20-57AAC 20-57A 1971011201/12/1971Automatic Landing Systems (ALS)
AC 20-74AC 20-74 1971072907/29/1971Aircraft Position and Anticollision Light Measurements
AC 20-76AC 20-76 1971102110/21/1971Maintenance Inspection Notes for Boeing
AC 91-22AAC 91-22A 1971122312/23/1971Altitude Alerting Devices/Systems
AC 20-29BAC 20-29B 1972011801/18/1972Use of Aircraft Fuel Anti-icing Additives
AC 91-35AC 91-35 1972032803/28/1972Noise, Hearing Damage, and Fatigue in General Aviation Pilots
AC 107-1AC 107-1 1972051905/19/1972Aviation Security-Airports
AC 20-78AC 20-78 1972071107/11/1972Maintenance Inspection Notes for McDonnell Douglas DC-8 Series Aircraft
AC 20-59AC 20-59CHG 11972082408/24/1972Maintenance Inspection Notes for Convair Models 240 and 600/240D; Models 340/440 and 640/340D/440D Series Aircraft
AC 61-10AAC 61-10A 1972092709/27/1972Private and Commercial Pilots Refresher Courses
AC 150/5300-7BAC 150/5300-7B 1972110811/08/1972FAA Policy on Facility Relocations Occasioned by Airport Improvements or Changes
AC 20-32BAC 20-32B 1972112411/24/1972Carbon Monoxide (CO) Contamination in Aircraft Detection and Prevention
AC 20-82AC 20-82 1972121212/12/1972Maintenance Inspection Notes for Fairchild Hiller F-27/FH-227 Series Aircraft
AC 20-83AC 20-83 1973011701/17/1973Maintenance Inspection Notes for Boeing B-737 Series Aircraft (Includes Changes 1 and 2)
AC 00-33AAC 00-33A 1973021402/14/1973Nickel-Cadmium Battery Operational, Maintenance, and Overhaul Practices
AC 21-13AC 21-13 1973040504/05/1973Standard Airworthiness Certification of Surplus Military Aircraft and Aircraft Built from Spare and Surplus Parts
AC 91-37AAC 91-37A 1974010801/08/1974Truth in Leasing
AC 61-9BAC 61-9B 1974011501/15/1974Pilot Transition Courses for Complex Single Engine and Light, Twin-Engine Airplanes
AC 00-34AAC 00-34A 1974072907/29/1974Aircraft Gound Handling and Servicing
AC 43-7AC 43-7 1974092409/24/1974Ultrasonic Testing for Aircraft
AC 00-6AAC 00-6A 1975010101/01/1975Aviation Weather For Pilots and Flight Operations Personnel
AC 20-84AC 20-84CHG 21975013101/31/1975Maintenance Inspection Notes for Boeing B-727 Series Aircraft
AC 90-45AAC 90-45ACHG 21975022102/21/1975Approval of Area Navigation Systems for use in the U.S. National Airspace System
AC 20-56AAC 20-56A 1975040104/01/1975Marking of TSO-C72b Individual Flotation Devices
AC 90-58CAC 90-58C 1975040704/07/1975VOR Course Errors Resulting from 50 kHz Channel Mis-Selection
AC 20-33BAC 20-33B 1975050105/01/1975Technical Information Regarding Civil Aeronautics Manuals 1, 3, 4a, 4b, 5, 6, 7, 8, 9, 13, and 14
AC 91-43AC 91-43 1975062606/26/1975Unreliable Airspeed Indications
AC 150/5320-6DAC 150/5320-6D 1975070107/01/1975Airport Pavement Design and Evaluation
AC 150/5050-4AC 150/5050-4 1975092609/26/1975Citizen Participation in Airport Planning
AC 65-12AAC 65-12A 1976010101/01/1976[Large AC] Airframe and Powerplant Mechanics Powerplant Handbook
AC 65-15AAC 65-15A 1976010101/01/1976[Large AC] Airframe and Powerplant Mechanics Airframe Handbook
AC 43-11AC 43-11 1976040704/07/1976Reciprocating Engine Overhaul Terminology and Standards
AC 150/5100-10AAC 150/5100-10A 1976041304/13/1976Accounting Records Guide for Airport Aid Program Sponsors
AC 135-4AAC 135-4A 1976041504/15/1976Aviation Security: Air Taxi Commercial Operators (ATCO)
AC 145-2AC 145-2 1976042104/21/1976Repair Station Limited Ratings Beech 18 Series Aircraft
AC 21-1BAC 21-1B 1976051005/10/1976Production Certificates
AC 120-30AAC 120-30A 1976090809/08/1976Reporting Requirements of Air Carriers, Commercial Operators, Travel Clubs, and Air Taxi Operators of Large and Small Aircraft
AC 20-43CAC 20-43C 1976102010/20/1976Aircraft Fuel Control
AC 20-96AC 20-96 1976120212/02/1976Surplus Military Aircraft: A Briefing for Prospective Buyers
AC 25.253-1AAC 25.253-1A 1976122712/27/1976High-Speed Characteristics
AC 91-46AC 91-46 1977020402/04/1977Gyroscopic Instruments - Good Operating Practices
AC 90-75AC 90-75 1977021002/10/1977Strobe Light System Inspection
AC 43-14AC 43-14 1977022402/24/1977Maintenance of Weather Radar Radomes
AC 120-32AC 120-32 1977032503/25/1977Air Transportation of Handicapped Persons
AC 20-41AAC 20-41A 1977040504/05/1977Substitute Technical Standard Order (TSO) Aircraft Equipment
AC 20-99AC 20-99 1977052705/27/1977Antiskid and Associated Systems
AC 120-33AC 120-33 1977062406/24/1977Operational Approval of Airborne Long-Range Navigation Systems for Flight within the North Atlantic Minimum Navigation Performance Specifications Airspace
AC 91-48AC 91-48 1977062906/29/1977Acrobatics-Precision Flying with a Purpose
AC 43-15AC 43-15 1977081508/15/1977Recommended Guidelines for Instrument Shops
AC 91-49AC 91-49CHG 11977082308/23/1977General Aviation Procedures for Flight in North Atlantic Minimum Navigation Performance Specifications Airspace
AC 91-50AC 91-50 1977082408/24/1977Importance of Transponder Operation and Altitude Reporting
AC 121-25AC 121-25 1977091609/16/1977Additional Weather Information: Domestic and Flag Air Carriers
AC 20-100AC 20-100 1977092109/21/1977General Guidelines for Measuring Fire-Extinguishing Agent Concentrations in Powerplant Compartments
AC 97-1AAC 97-1A 1977092809/28/1977Runway Visual Range (RVR)
AC 150/5320-14AC 150/5320-14 1978013101/31/1978Airport Landscaping for Noise Control Purposes
AC 20-103AC 20-103 1978030703/07/1978Aircraft Engine Crankshaft Failure
AC 120-17AAC 120-17A 1978032703/27/1978Maintenance Control by Reliability Methods
AC 20-106AC 20-106 1978040104/01/1978Aircraft Inspection for the General Aviation Aircraft Owner
AC 91-6AAC 91-6A 1978052405/24/1978Water, Slush, and Snow on the Runway
AC 20-104AC 20-104 1978071907/19/1978Revised Powerplant Engineering Report No. 3A Standard Fire Test Apparatus and Procedure (for Flexible Hose Assemblies)
AC 91-54AC 91-54 1979022602/26/1979Automatic Reporting Systems Altimeter Setting and Other Operational Data
AC 61-47AAC 61-47A 1979032603/26/1979Use of Approach Slope Indicators for Pilot Training
AC 91-14DAC 91-14D 1979040904/09/1979Altimeter Setting Sources
AC 91-13CAC 91-13C 1979072407/24/1979Cold Weather Operation of Aircraft
AC 43-17AC 43-17 1979090509/05/1979Methods, Techniques, and Practices Acceptable to the Administrator Governing the Installation, Removal, or Change of Identification Data and Identification Plates
AC 135.169-1AC 135.169-1 1979092409/24/1979Small Propeller-Driven Air Taxi Airplanes that meet Sections 135.169 (formerly 135.144)
AC 133-1AAC 133-1A 1979101610/16/1979Rotorcraft External-Load Operations in Accordance with Federal Aviation Regulations Part 133
AC 150/5360-9AC 150/5360-9 1980040404/04/1980Planning and Design of Airport Terminal Facilities at Nonhub Locations
AC 90-79AC 90-79 1980071407/14/1980Recommended Practices and Procedures for the Use of Electronic Long-Range Navigation
AC 20-34DAC 20-34D 1980080808/08/1980Prevention of Retractable Landing Gear Failures
AC 20-68BAC 20-68B 1980080808/08/1980Recommended Radiation Safety Precautions for Ground Operation of Airborne Weather Radar
AC 60-6BAC 60-6B 1980092509/25/1980Airplane Flight manuals (AFM), Approved Manual Materials, Markings, and Placards Airplanes
AC 20-111AC 20-111 1980101010/10/1980Communication Interference Caused by Unintentional Keyed Microphones
AC 120-38AC 120-38 1980101010/10/1980Transport Category Airplanes Cabin Ozone Concentrations
AC 43-2BAC 43-2B 1980101610/16/1980Minimum Barometry for Calibration and Test of Atmospheric Pressure Instruments
AC 91-55AC 91-55 1980102810/28/1980Reduction of Electrical System Failures following Aircraft Engine Starting
AC 120-39AC 120-39 1980103110/31/1980Hazards of Waste Water Ice Accumulation Separating from Aircraft in Flight
AC 91-44AAC 91-44A 1980121212/12/1980Operational and Maintenance Practices for Emergency Locator Transmitters and Receivers
AC 125-1AC 125-1 1981012201/22/1981Operations of Large Airplanes Subject to Federal Aviation Regulations Part 125
AC 170-6CAC 170-6C 1981021302/13/1981Use of Radionavigation Land Test Station and Signal Generators
AC 20-112AC 20-112 1981021902/19/1981Airworthiness and Operational Approval of Airborne Systems to be used in Lieu of a Ground Proximity Warning System(s) (GPWS)
AC 135-9AC 135-9 1981053005/30/1981FAR Part 135 Icing Limitations
AC 91-57AC 91-57 1981060906/09/1981Model Aircraft Operating Standards
AC 121-26AC 121-26 1981062906/29/1981Airports--Required Data
AC 20-30BAC 20-30B 1981072007/20/1981Aircraft Position Light and Anticollision Light Installations
AC 108-2AC 108-2 1981101610/16/1981Security Rules - Carriage of Weapons and Escorted Persons
AC 108-1AC 108-1 1981101610/16/1981Air Carrier Security
AC 20-113AC 20-113 1981102210/22/1981Pilot Precautions and Procedures to be taken in Preventing Aircraft Reciprocating Engine Induction System and Fuel System Icing Problems
AC 20-114AC 20-114 1981102210/22/1981Manufacturers' Service Documents
AC 108-3AC 108-3 1981110611/06/1981Screening of Persons Carrying U.S. Classified Material
AC 109-1AC 109-1 1982030303/03/1982Aviation Security - Acceptance and Handling Procedures Indirect Air Carrier Security
AC 21-9AAC 21-9A 1982052605/26/1982Manufacturers Reporting Failures, Malfunctions, or Defects
AC 21-17AC 21-17 1982053105/31/1982Carriage of Cargo in Restricted Category Aircraft and Other Special Purpose Operations
AC 129-3AC 129-3 1982061006/10/1982Foreign Air Carrier
AC 21-6AAC 21-6A 1982070107/01/1982Production Under Type Certificate Only
AC 21-18AC 21-18 1982082008/20/1982[Large AC] Bilateral Airworthiness Agreements
AC 20-116AC 20-116 1982091709/17/1982Marking Aircraft Fuel Filler Openings with Color Coded Decals
AC 00-31AAC 00-31A 1982092009/20/1982[Large AC] United States (U.S.) National Aviation Standard for the Very High Frequency Omnidirectional Radio Range (VOR)/Distance Measuring Equipment (DME)/Tactical Air Navigation (TACAN) Systems
AC 20-117AC 20-117 1982120312/03/1982Hazards Following Ground Deicing and Ground Operations in Conditions Conducive to Aircraft Icing
AC 00-24BAC 00-24B 1983012001/20/1983Thunderstorms
AC 65-24AC 65-24 1983020102/01/1983Certification of a Repairman (General)
AC 20-119AC 20-119 1983020702/07/1983Fuel Drain Valves
AC 60-4AAC 60-4A 1983020902/09/1983Pilot's Spatial Disorientation
AC 91-42DAC 91-42D 1983030303/03/1983Hazards of Rotating Propeller and Helicopter Rotor Blades
AC 90-48CAC 90-48C 1983031803/18/1983Pilots' Role in Collision Avoidance
AC 21-10AAC 21-10A 1983041904/19/1983Flight Recorder and Cockpit Voice Recorder Underwater Locating Devices
AC 103-6AC 103-6 1983062306/23/1983Ultralight Vehicle Operations-Airports, ATC, and Weather
AC 20-35CAC 20-35C 1983071207/12/1983Tiedown Sense
AC 33-4AC 33-4 1983072807/28/1983Design Considerations Concerning the Use of Titanium in Aircraft Turbine Engines
AC 150/5020-1AC 150/5020-1 1983080508/05/1983Noise Control and Compatibility Planning for Airports
AC 150/5060-5AC 150/5060-5 1983092309/23/1983Airport Capacity and Delay (Consolidated reprint includes Change 1and 2)
AC 135-5BAC 135-5B 1983092609/26/1983Maintenance Program Approval for Carry-On Oxygen Equipment for Medical Purposes
AC 43-12AAC 43-12A 1983102810/28/1983Preventive Maintenance
AC 120-41AC 120-41 1983110711/07/1983Criteria for Operational Approval of Airborne Wind Shear Alerting and Flight Guidance
AC 23.1011-1AC 23.1011-1 1983111411/14/1983Procedures for Determining Acceptable Fuel/Oil Ratio as Required by FAR 23.1011(b)
AC 25.672-1AC 25.672-1 1983111511/15/1983Active Flight Controls
AC 121-27AC 121-27 1984010301/03/1984Guide for Air Carriers, Freight Forwarders, and Shippers in Obtaining Information Dealing with the Transportation of Hazardous Materials by Air
AC 103-7AC 103-7 1984013001/30/1984The Ultralight Vehicle
AC 91-61AC 91-61 1984022802/28/1984A Hazard in Aerobatics: Effects of G-Forces of Pilots
AC 20-42CAC 20-42C 1984030703/07/1984Hand Fire Extinguishers for Use in Aircraft
AC 20-120AC 20-120 1984061806/18/1984Nondirectional Beacon Frequency Congestion
AC 91-33AAC 91-33A 1984071807/18/1984Use of Alternate Grades of Aviation Gasoline for Grade 80/87, and Use of Automotive Gasoline
AC 11-2AAC 11-2A 1984072607/26/1984Notice of Proposed Rulemaking Distribution System
AC 61-94AC 61-94 1984073107/31/1984Pilot Transition Course for Self Launching or Powered Sailplanes (Motorgliders)
AC 21-21AC 21-21 1984082408/24/1984Use of Automobile Gasoline in Agricultural Aircraft
AC 23.607-1AC 23.607-1 1984082408/24/1984Self-Locking Nuts on Bolts Subject to Rotation
AC 150/5150-2BAC 150/5150-2B 1984100110/01/1984Federal Surplus Personal Property for Public Airport Purposes
AC 20-123AC 20-123 1984122012/20/1984Avoiding or Minimizing Encounters with Aircraft Equipped with Depleted Uranium Balance Weights during Accident Investigations
AC 25.1455-1AC 25.1455-1 1985031103/11/1985Waste Water/Potable Water Drain System Certification Testing
AC 61-84BAC 61-84B 1985031803/18/1985Role of Preflight Preparation
AC 150/5300-9AAC 150/5300-9A 1985050105/01/1985Predesign, Prebid, and Preconstruction Conferences for Airport Grant Projects
AC 21-22AC 21-22 1985062006/20/1985Injury Criteria for Human Exposure to Impact
AC 20-124AC 20-124 1985093009/30/1985Water Ingestion Testing for Turbine Powered Airplanes
AC 20-88AAC 20-88A 1985093009/30/1985Guidelines on the Marking of Aircraft
AC 45-3AC 45-3 1985110611/06/1985Installation, Removal, or Change of Identification Data and Identification Plates on Aircraft
AC 33.65-1AC 33.65-1 1985120612/06/1985Surge and Stall Characteristics of Aircraft Turbine Engines
AC 20-24BAC 20-24B 1985122012/20/1985Qualification of Fuels
AC 20-67BAC 20-67B 1986011601/16/1986Airborne VHF Communication Equipment Installations
AC 90-87AC 90-87 1986012701/27/1986Helicopter Dynamic Rollover
AC 36-2CAC 36-2C 1986021202/12/1986Measured or Estimated (Uncertificated) Airplane Noise Levels
AC 25.939-1AC 25.939-1 1986031903/19/1986Evaluating Turbine Engine Operating Characteristics
AC 120-12AAC 120-12A 1986042404/24/1986Private Carriage Versus Common Carriage of Persons or Property
AC 25-8AC 25-8 1986050205/02/1986Auxiliary Fuel Systems Installations
AC 25.994-1AC 25.994-1 1986072407/24/1986Design Considerations to Protect Fuel Systems during a Wheels-Up Landing
AC 91-65AC 91-65 1986080408/04/1986Use of Shoulder Harness in Passenger Seats
AC 25.853-1AC 25.853-1 1986091709/17/1986Flammability Requirements for Aircraft Seat Cushions
AC 150/5100-6DAC 150/5100-6D 1986101510/15/1986Labor Requirements for the Airport Improvement Program (AIP)
AC 120-43AC 120-43 1987012701/27/1987The Influence of Beards on Oxygen Mask Efficiency
AC 65-2DAC 65-2D 1987013001/30/1987Airframe and Powerplant Mechanics Certification Guide
AC 25-10AC 25-10 1987030603/06/1987Guidance for Installation of Miscellaneous, Nonrequired Electrical Equipment
AC 20-118AAC 20-118A 1987030903/09/1987Emergency Evacuation Demonstration
AC 121-28AC 121-28 1987031903/19/1987Preparation and Loading of Magnetron Magnetic Materials for Air Transportation
AC 91-66AC 91-66 1987060406/04/1987Noise Abatement for Helicopters
AC 120-47AC 120-47 1987061206/12/1987Survival Equipment for use in Overwater Operations
AC 20-127AC 20-127 1987070807/08/1987Use of Society of Automotive Engineers (SAE) Class H11 Bolts
AC 65-23AAC 65-23A 1987072207/22/1987Certification of Repairmen (Experimental Aircraft Builders)
AC 25-16AC 25-16 1987092509/25/1987Electrical Fault and Fire Prevention and Protection
AC 25-12AC 25-12 1987110211/02/1987Airworthiness Criteria for the Approval of Airborne Windshear Warning Systems in Transport Category
AC 150/5190-4AAC 150/5190-4A 1987121412/14/1987Model Zoning Ordinance to Limit Height of Objects Around Airports, A
AC 23-9AC 23-9 1988012701/27/1988[Large AC] Evaluation of Flight Loads on Small Airlpanes with T, V, +, or Y Empennage Configurations
AC 150/5360-13AC 150/5360-13 1988042204/22/1988Planning and Design Guidelines for Airport Terminal Facilities Reprint (Includes Change 1)
AC 25-13AC 25-13 1988050405/04/1988Reduced and Derated Takeoff Thrust (Power) Procedures
AC 25.1309-1AAC 25.1309-1A 1988062106/21/1988System Design and Analysis
AC 33.47-1AC 33.47-1 1988062706/27/1988Detonation Testing in Reciprocating Aircraft Engines
AC 120-48AC 120-48 1988071307/13/1988Communication and Coordination Between Flight Crewmembers and Flight Attendants
AC 65-5BAC 65-5B 1988072507/25/1988Parachute Rigger Senior/Master Certification Guide
AC 20-121AAC 20-121A 1988082408/24/1988Airworthiness Approval of Loran-C Navigation Systems for use in the U.S. National & Airspace System (NAS) and Alaska
AC 20-129AC 20-129 1988091209/12/1988Airworthiness Approval of Vertical Navigation (VNAV) Systems for use in the U.S. National Airspace System (NAS) and Alaska
AC 120-49AC 120-49 1988112311/23/1988Certification of Air Carriers