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United States Department of Transportation United States Department of Transportation

Advisory Circulars (ACs)

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Number, title, description, or office

Advisory Circulars (ACs) search results
Number Title Status Office Date
43-204 Visual Inspection for Aircraft

Provides technical information to persons conducting a visual inspection of aircraft. The procedures presented in this AC are an acceptable means, but not the only means, for conducting visual inspections and inspection programs.

Cancelled AFS-350 1997-08-14
43-4A Corrosion Control for Aircraft

Cancelled AFS-340 1991-07-25
43-16A General Aviation Maintenance Alerts can be found at:

Issued monthly, the Aviation Maintenance Alerts are prepared from information submitted by persons who operate and maintain civil aeronautical products.

Cancelled AFS-620 1999-09-03
43-6B Altitude Reporting Equipment and Transponder System Maintenance and Inspection Practices

Provides information on acceptable methods of testing altimeters, static systems, altitude encoders, and Air Traffic Control (ATC) transponder systems.

Cancelled AFS-300 2002-08-14
43-205 Guidance for Selecting Chemical Agents and Processes for Depainting and General Cleaning of Aircraft and Aviation Products

Describes an acceptable means, but not the only means,, for selecting and testing alternatives to chemical agents and/or processes currently required by some manufacturers’ maintenance instructions, including instructions for continuing airworthiness.

Cancelled AFS-340 1998-09-25
43-211 Recommended Alternative Inspection Schedule for Socata TBM-700 Aircraft

This advisory circular (AC) provides a recommended inspection schedule for all owners of Socata TBM-700 aircraft who operate their aircraft 100 hours a year or less.

Cancelled AFS-306 2006-08-09
43-17 Methods, Techniques, and Practices Acceptable to the Administrator Governing the Installation, Removal, or Change of Identification Data and Identification Plates

Provides information and guidance concerning the installation, removal, or change of identification data and identification plates on aircraft, aircraft engines, propellers, and propeller blades and hubs.

Cancelled AFS-340 1979-09-05
43-10A Mechanical Work Performed on U.S. and Canadian Registered Aircraft

Provides updated information and guidance to aircraft owners/operators and maintenance personnel concerning mechanical work performed on U.S. registered aircraft by Canadian maintenance personnel and on Canadian registered aircraft by U.S. maintenance personnel and on Canadian registered aircraft by U.S. maintenance personnel.

Cancelled AFS-340 1983-02-25
43-209 L-39 Albatross Military Jet Recommended Inspection Program

Provides a recommended inspection program for existing and new owners of L-39 Albatross aircraft operating under an Experimental Exhibition Special Airworthiness Certificate.

Cancelled AFS-305 2003-10-16
43-203B Altimeter and Static System Tests and Inspections Cancelled AFS-350 1979-06-20
43-213 Parts Marking Identification

This advisory circular (AC) provides information and guidance on developing procedures for part marking and part re-marking when performing maintenance, alteration, and fabrication, including the fabrication of owner- or operator-produced parts.

Cancelled AFS-300 2009-11-03
43-6C Altitude Reporting Equipment and Transponder System Maintenance and Inspection Practices - Including Change 1

This advisory circular (AC) provides information concerning acceptable methods of testing altimeters, static systems, altitude encoders, and air traffic control (ATC) transponder systems (ATCTS).

Cancelled AFS-300 2012-09-17
43-216 Software Management During Aircraft Maintenance

This advisory circular (AC) provides guidance for developing a software management program and showing compliance with applicable regulations related to continued airworthiness when managing aircraft software during maintenance activities.

Cancelled AFS-300 2017-12-20
43-210 Standardized Procedures for Requesting Field Approval of Data, Major Alterations, and Repairs

Describes standardized procedures for requesting field approvals for certificated products. It describes the field approval process, data that supports making an alteration or repair, and the purpose and uses of the Aircraft Flight Manual Supplements (AFMS) and Instructions for Continued Airworthiness (ICA).

Cancelled AFS-340 2004-02-17
43-6A Automatic Pressure Altitude Encoding Systems and Transponders Maintenance and Inspection Practices

Provides information on acceptable methods of testing altimeters, static systems, altitude encoders, and Air Traffic Control (ATC) transponder systems.

Cancelled AFS-310 1977-11-11
43-7 Ultrasonic Testing for Aircraft

Describes methods used in ultrasonic nondestructive testing, discusses the many advantages, and points out the simplicity of the tests.

Cancelled AFS-310 1974-09-24
43-10B United States - Canadian BASA/MIP Maintenance

Provides updated information and guidance to aircraft owners/operators and maintenance personnel concerning mechanical work performed on U.S. registered aircraft by Canadian maintenance personnel and on Canadian registered aircraft by U.S. maintenance personnel and on Canadian registered aircraft by U.S. maintenance personnel.

Cancelled AFS-300 2006-10-03
43-214 Repairs and Alterations to Composite and Bonded Aircraft Structure

This advisory circular (AC) provides information and guidance concerning an acceptable means, but not the only means, of demonstrating compliance with the requirements of Title 14 of the Code of Federal Regulations (14 CFR) parts 21, 23, 25, 26, 27, 29, 31, 33, 35, 43, 91, 121, 125, (U.S.

Cancelled AFS-300 2013-04-11