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FAA Advisory Circulars

rosaP Repository & Open Science Access Portal

FAA Advisories concern how to comply with airworthiness regulations. This collection was published from 1957 to 2000. The FAA Advisory Circular System was established for the publication of nonregulatory guidance and informational material to the public. Bookmark this collection: https://rosap.ntl.bts.gov/collection_faacirculars or https://doi.org/10.21949/1530829.

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Showing 1121 - 1140 of 2072 results
  • AC 2044 Glass Firer Fabric for Aircraft Covering
    AC 20-44: Glass Firer Fabric for Aircraft Covering
    United States. Department of Transportation. Federal Aviation Administration
    1965-09-03 | PDF
    This circular provides a means, but not the sole means for acceptance of glass fiber fabric for external covering of aircraft structure.
  • AC 2045 Safetying of Turnbuckles on Civil Aircraft
    AC 20-45: Safetying of Turnbuckles on Civil Aircraft
    United States. Department of Transportation. Federal Aviation Administration
    1965-09-17 | PDF
    To provide information on turnbuckle safety methods that have been found acceptable by the Agency during past aircraft type certification programs.
  • AC 2046 Suggested Equipment for Gliders Operating Under IFR
    AC 20-46: Suggested Equipment for Gliders Operating Under IFR
    United States. Department of Transportation. Federal Aviation Administration
    1965-09-23 | PDF
    This circular provides guidance to glider operators on bow to equip their gliders for operation under instrument flight rules (IFR), including flight through clouds.
  • AC 2047 Exterior Colored Band Around Exits on Transport Airplanes
    AC 20-47: Exterior Colored Band Around Exits on Transport Airplanes
    United States. Department of Transportation. Federal Aviation Administration
    1966-02-08 | PDF
    This circular sets forth an acceptable means but not the only means of complying with the requirement for a two-Inch colored band outlining exits required to be openable from the outside on transport airplanes.
  • AC 2048 Practice Guide for Decontaminating Aircraft
    AC 20-48: Practice Guide for Decontaminating Aircraft
    United States. Department of Transportation. Federal Aviation Administration
    1966-01-01 | PDF
    This publication is a guide to be used by groups or emergency readiness teams in the civil aviation industry for organizing and conducting practice exercises in aircraft decontamination.
  • AC 2049 Analysis of Bird Strike Reports on Transport Category Airplanes Operating in Continental Limits of the United States
    AC 20-49: Analysis of Bird Strike Reports on Transport Category Airplanes Operating in Continental Limits of the United States
    United States. Department of Transportation. Federal Aviation Administration
    1966-07-27 | PDF
    This circular provides information to the public on the results of a statistical study dealing with the frequency of bird strikes on transport aircraft and the conditions of damage sustained.
  • AC 2051 Procedures for Obtaining FAA Approval of Major Alterations to Type Certificated Products
    AC 20-51: Procedures for Obtaining FAA Approval of Major Alterations to Type Certificated Products
    United States. Department of Transportation. Federal Aviation Administration
    1967-04-12 | PDF
    This advisory circular provides assistance to persons who desire to obtain FAA approval of major alterations to type certificated products.
  • AC 2052 Maintenance Inspection Notes for Douglas DC67 Series Aircraft
    AC 20-52: Maintenance Inspection Notes for Douglas DC-6/7 Series Aircraft
    United States. Department of Transportation. Federal Aviation Administration
    1974-01-01 | PDF
    This handbook describes maintenance inspection notes which can be used for the maintenance support of certain structural parts of DC-6/7 series aircraft.
  • AC 2053 Protection of Aircraft Fuel Systems Against Lightning
    AC 20-53: Protection of Aircraft Fuel Systems Against Lightning
    United States. Department of Transportation. Federal Aviation Administration
    1967-10-06 | PDF
    This circular sets forth acceptable means, not the sole meant, by which compliance may be shown with fuel eye ten lightning protection airworthiness regulations (Section 25.954).
  • AC 2053A Protection of Airplane Fuel Systems Against Fuel Vapor Ignition Due to Lightning
    AC 20-53A: Protection of Airplane Fuel Systems Against Fuel Vapor Ignition Due to Lightning
    United States. Department of Transportation. Federal Aviation Administration
    1985-04-12 | PDF
    This Advisory Circular (AC) provides information and guidance concerning an acceptable means, but not the only means, of compliance with Parts 23 or 25 of the Federal Aviation Regulations (FAR), applicable to preventing ignition of fuel vapors due to lightning. Accordingly, this material is neither mandatory nor regulatory in nature and does not co ...
  • AC 2054 Hazards of RadiumActivated Luminous Compounds Used on Aircraft Instruments
    AC 20-54: Hazards of Radium-Activated Luminous Compounds Used on Aircraft Instruments
    United States. Department of Transportation. Federal Aviation Administration
    1967-10-24 | PDF
    This advisory circular provides information concerning health hazards associated with the repair and maintenance of instruments containing luminous markings activated with radium 226 or radium 228 (mesothorium).
  • AC 2055 Turbine Engine Overhaul Standard Practices Manual Maintenance of Fluorescent Penetrant Inspection Equipment
    AC 20-55: Turbine Engine Overhaul Standard Practices Manual - Maintenance of Fluorescent Penetrant Inspection Equipment
    United States. Department of Transportation. Federal Aviation Administration
    1968-01-22 | PDF
    This circular advises operators of the necessity for periodic checking of black light lamps and filters used during fluorescent penetrant inspection of engine parts. Failure to perform these checks might result in inadequate inspection of parts due to insufficient light intensity.
  • AC 2056 Marking of TSOC72A Individual Flotation Devices
    AC 20-56: Marking of TSO-C72A Individual Flotation Devices
    United States. Department of Transportation. Federal Aviation Administration
    1968-01-19 | PDF
    This circular outlines acceptable methods for marking individual flotation devices which also serve as seat cushions.
  • AC 2056A Marking of TSOC72B Individual Flotation Devices
    AC 20-56A: Marking of TSO-C72B Individual Flotation Devices
    United States. Department of Transportation. Federal Aviation Administration
    1975-04-01 | PDF
    This circular outlines acceptable methods for marking individual flotation devices which also serve as seat cushions.
  • AC 2057 Automatic Landing Systems
    AC 20-57: Automatic Landing Systems
    United States. Department of Transportation. Federal Aviation Administration
    1968-01-29 | PDF
    This circular sets forth an acceptable means of compliance but not the only means for the installation approval of automatic landing systems in transport category aircraft which may be used initially in Category II operations. Approval of these aircraft for use under such conditions will permit the accumulation of data for systems which may be appr ...
  • AC 2057A Automatic Landing Systems Als
    AC 20-57A: Automatic Landing Systems (Als)
    United States. Department of Transportation. Federal Aviation Administration
    1971-01-12 | PDF
    This circular sets forth an acceptable means of compliance but not the only means for the installation approval of automatic landing systems in transport category aircraft which may be used initially in Category II operations. Approval of these aircraft for use under such conditions will permit the accumulation of data for systems which may be appr ...
  • AC 2058A Acceptable Means of Testing Automatic Altitude Reporting Equipment for Compliance with FAR 9136B
    AC 20-58A: Acceptable Means of Testing Automatic Altitude Reporting Equipment for Compliance with FAR 91.36(B)
    United States. Department of Transportation. Federal Aviation Administration
    1969-04-28 | PDF
    This advisory circular sets forth acceptable means of testing for compliance with Section 91.36(b) of the Federal Aviation Regulations (FARs).
  • AC 2059 Maintenance Inspection Notes for Convair Models 240 and 600240D
    AC 20-59: Maintenance Inspection Notes for Convair Models 240 and 600/240D
    United States. Department of Transportation. Federal Aviation Administration
    1969-02-19 | PDF
    This handbook describes maintenance inspection notes which can be used for the maintenance support of certain structural parts of Convair 240 and 600/240D; Models 340/440 and 640/340D/440D series aircraft.
  • AC 205A Plane Sense
    AC 20-5A: Plane Sense
    United States. Department of Transportation. Federal Aviation Administration
    1967-01-01 | PDF
    This advisory circular discusses the foaming of runways and suggests procedures to be followed when this service i s to be provided.
  • AC 205B Plane Sense
    AC 20-5B: Plane Sense
    United States. Department of Transportation. Federal Aviation Administration
    1968-01-01 | PDF
    The purpose of the booklet is to acquaint the prospective pilot and aircraft owner with some fundamental information on the requirements for owning and operating an aircraft. It is not a Regulation and it is not intended to interpret Regulations.
1121 - 1140 / 2072