U.S. flag An official website of the United States government.
Official websites use .gov

A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS

A lock ( ) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.

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.

(6)
(9)
(21)
(24)
(19)
(26)
(23)
(36)
(22)
(29)
(21)
(30)
(34)
(44)
(39)
(51)
(52)
(48)
(48)
(54)
(59)
(54)
(57)
(72)
(95)
(67)
(73)
(82)
(86)
(83)
(78)
(86)
(94)
(73)
(84)
(114)
(91)
(81)
(6)
(1)
0 of 40
(2072)
0 of 1
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(2)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(2)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(3)
(2)
(2)
(1)
(1)
(1)
(2)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(2)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(2)
(1)
(2)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(2)
(1)
(2)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(2)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(2)
(2)
(4)
(1)
(1)
(2)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(2)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(2)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(2)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(2)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(2)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(2)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(2)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
0 of 1000
(1)
(2072)
0 of 2
(1)
(2)
(5)
(1)
(1764)
(4)
(1)
(4)
(3)
(1)
(1)
(1)
(1)
(60)
(1995)
(1)
(2)
(244)
(1)
(7)
(1)
(1)
(1)
(1)
(50)
(1)
(15)
(1)
(1)
(1)
(1)
(3)
(1)
(1)
(1)
(1)
(1)
(1)
(3)
(2)
(1)
(4)
(1)
(1989)
(3)
(7)
(1)
(1)
(1)
(2)
(1)
(1)
(47)
(1)
(2)
(1)
(2)
(2)
(1)
(1)
(1)
(1)
(2)
(1)
(1)
(1)
(3)
(4)
(2)
(1)
(1)
(1)
(1)
(1)
(2)
(1)
(46)
(1)
(2)
(3)
(1)
(7)
(1)
(1)
(1)
(9)
0 of 86
(2072)
0 of 1
(2072)
0 of 1
Showing 1181 - 1200 of 2072 results
  • AC 2083 Maintenance Inspection Notes for Boeing B737 Series Aircraft
    AC 20-83: Maintenance Inspection Notes for Boeing B-737 Series Aircraft
    United States. Department of Transportation. Federal Aviation Administration
    1973-01-12 | PDF
    This advisory circular provides maintenance inspection notes which can be used for the maintenance support program for certain structural parts of the B-737 series aircraft.
  • AC 2084 CHANGE 2 Maintenance Inspection Notes for Boeing B727 Series Aircraft
    AC 20-84 CHANGE 2: Maintenance Inspection Notes for Boeing B-727 Series Aircraft
    United States. Department of Transportation. Federal Aviation Administration
    1975-01-31 | PDF
    This change provides for corrections to the Table of Contents, page iii. Further, Appendix 4 was revised and renumbered as Appendix 2 by Change 1 and, subsequently, pages 3, 4, 5 and 6 of Appendix 4 were inadvertently omitted from Appendix 2. Pages 3, 4, 5 and 6 are now inserted in Appendix 2.
  • AC 2084 Maintenance Inspection Notes for Boeing B727 Series Aircraft
    AC 20-84: Maintenance Inspection Notes for Boeing B-727 Series Aircraft
    United States. Department of Transportation. Federal Aviation Administration
    1973-01-22 | PDF
    This advisory circular provides inspection notes which can be used for the maintenance support program for certain structural parts of the B-727 series aircraft.
  • AC 2085 Emergency Locator Transmitters and Receivers
    AC 20-85: Emergency Locator Transmitters and Receivers
    United States. Department of Transportation. Federal Aviation Administration
    1973-03-16 | PDF
    This advisory circular provides information concerning the design, installation and utilization of emergency locator transmitters. It reviews the experience of the past year and states solutions for existing problems. It discusses design features and production testing to minimize operational problems in future manufactured ELTs. Additionally, it s ...
  • AC 2086 Aviation Education Through Building An Airplane
    AC 20-86: Aviation Education Through Building An Airplane
    United States. Department of Transportation. Federal Aviation Administration
    1973-05-11 | PDF
    The objective of this advisory circular is to provide information to high schools about the available assistance, resources, methods, and opportunities for attaining basic educational goals by building an airplane.
  • AC 2087 Airborne Homing and Alerting Equipment for Use with Emergency Locator Transmitters
    AC 20-87: Airborne Homing and Alerting Equipment for Use with Emergency Locator Transmitters
    United States. Department of Transportation. Federal Aviation Administration
    1973-05-07 | PDF
    This advisory circular sets forth the availability of recommended basic characteristics for airborne homing and alerting equipment for use with emergency locator transmitters (ELT).
  • AC 2088 Guidelines on the Marking of Powerplant Instruments
    AC 20-88: Guidelines on the Marking of Powerplant Instruments
    United States. Department of Transportation. Federal Aviation Administration
    1973-12-11 | PDF
    This circular provides guidelines on the marking of aircraft powerplant instruments. These guidelines offer acceptable, but not exclusive, methods of compliance with the powerplant instrument color marking requirements.
  • AC 2088A Guidelines on the Marking of Aircraft Powerplant Instruments Displays
    AC 20-88A: Guidelines on the Marking of Aircraft Powerplant Instruments (Displays)
    United States. Department of Transportation. Federal Aviation Administration
    1985-09-30 | PDF
    This advisory circular provides revised guidelines on the marking of aircraft powerplant instruments and electronic displays (cathode ray tubes, etc.). These guidelines offer acceptable, but not exclusive, methods of compliance with the powerplant instrument color marking requirements.
  • AC 2089 Communication Interference Caused by Unintentional Radio Transmissions
    AC 20-89: Communication Interference Caused by Unintentional Radio Transmissions
    United States. Department of Transportation. Federal Aviation Administration
    1974-03-22 | PDF
    This advisory circular alerts the aviation community to the potential hazards created by unintentional radio transmissions from airborne, mobile, and ground based radio transmitters and gives guidance on alleviating ensuing hazards.
  • AC 208 Shifting Flight Control Systems from BoostOn to BoostOff Operation on All Lockheed Constellation Aircraft
    AC 20-8: Shifting Flight Control Systems from Boost-On to Boost-Off Operation on All Lockheed Constellation Aircraft
    United States. Department of Transportation. Federal Aviation Administration
    1963-07-30 | PDF
    This circular provides guidance material for air carriers and other operators of Constellation type aircraft. It emphasizes recommended procedures and instructions relating to the shifting of the flight control system from boost-on to boost-off operation during emergencies.
  • AC 2090 Address List for Engineering and Manufacturing District Offices
    AC 20-90: Address List for Engineering and Manufacturing District Offices
    United States. Department of Transportation. Federal Aviation Administration
    1974-06-17 | PDF
    This advisory circular transmits the address list for all Engineering and Manufacturing District Offices.
  • AC 2090A Address List for Engineering and Manufacturing District Offices
    AC 20-90A: Address List for Engineering and Manufacturing District Offices
    United States. Department of Transportation. Federal Aviation Administration
    1975-03-05 | PDF
    This advisory circular transmits the address list for all Engineering and Manufacturing District Offices.
  • AC 2090B Address List for Engineering and Manufacturing District Offices
    AC 20-90B: Address List for Engineering and Manufacturing District Offices
    United States. Department of Transportation. Federal Aviation Administration
    1976-12-03 | PDF
    This advisory circular transmits the address list for all Engineering and Manufacturing District Offices.
  • AC 2090C Directory of Engineering and Manufacturing District Offices
    AC 20-90C: Directory of Engineering and Manufacturing District Offices
    United States. Department of Transportation. Federal Aviation Administration
    1981-04-30 | PDF
    This advisory circular (AC) provides the address and telephone number for each Engineering and Manufacturing District Office (EMDO) and also defines the specific programs or geographical area served by each office.
  • AC 2091 Lithium Batteries Used in Emergency Locator Transmitters
    AC 20-91: Lithium Batteries Used in Emergency Locator Transmitters
    United States. Department of Transportation. Federal Aviation Administration
    1975-04-11 | PDF
    This advisory circular warns of potential hazards associated with accidental release of sulfur-dioxide (SO2) gas from lithium sulfur batteries used in some emergency locator transmitters (ELTs). In addition, it sets forth the proper procedures that should be followed in the event such an incident is experienced.
  • AC 2092 AntiIcing Additives to Reduce Icing Problems in Aviation Gasoline
    AC 20-92: Anti-Icing Additives to Reduce Icing Problems in Aviation Gasoline
    United States. Department of Transportation. Federal Aviation Administration
    1976-01-12 | PDF
    This written test guide has been developed by the Flight Standards Service, Federal Aviation Administration, Department of Transportation, as Advisory Circular A C 143-2C to assist applicants who are preparing for the Ground Instructor—Instrument Written Test. It supersedes the Ground Instructor—Instrument Written Test Guide, A C 143-2B, issued in ...
  • AC 2093 Flutter Due to Ice or Foreign Substance on or in Aircraft Control Surfaces
    AC 20-93: Flutter Due to Ice or Foreign Substance on or in Aircraft Control Surfaces
    United States. Department of Transportation. Federal Aviation Administration
    1976-01-29 | PDF
    This advisory circular provides information concerning the potential hazard associated with aircraft control surface flutter caused by imbalance.
  • AC 2094 Digital Clock Installation in Aircraft
    AC 20-94: Digital Clock Installation in Aircraft
    United States. Department of Transportation. Federal Aviation Administration
    1976-03-04 | PDF
    This advisory circular provides guidelines for operating and installing digital clocks in aircraft.
  • AC 2095 Fatigue Evaluation of Rotorcraft Structure
    AC 20-95: Fatigue Evaluation of Rotorcraft Structure
    United States. Department of Transportation. Federal Aviation Administration
    1976-05-18 | PDF
    This advisory circular sets forth acceptable means of compliance with the provisions of Federal Aviation Regulations, Sections 27.571 and 29.571 dealing with the fatigue evaluation of rotorcraft structure.
  • AC 2096 Surplus Military Aircraft
    AC 20-96: Surplus Military Aircraft
    United States. Department of Transportation. Federal Aviation Administration
    1976-12-02 | PDF
    Many surplus military aircraft do not conform to any existing civilian type certificate, and some can never be made to conform, regardless of the effort and money expended to modify the aircraft. Department of Defense (DOD) does not represent or guarantee that surplus aircraft offered for sale can be certificated as civil aircraft.
1181 - 1200 / 2072