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Advisory Circulars (ACs)

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Advisory Circulars (ACs) search results
Number Title Status Office Date
21-55 Process to Support FAA Findings of Undue Burden or No Undue Burden for PAHs Requesting to Use a Manufacturing Facility Located Outside of the United States

This AC provides information for PAHs in accordance with the regulations cited in Title 14 of the Code of Federal Regulations (14 CFR) part 21, Certification Procedures for Products and Articles. For the purposes of this AC, manufacturing facilities includes production certificate (PC) extensions, associate facilities, and suppliers located outside the United States.

Active AIR-100 2016-08-01
21-45 Commercial Parts

This advisory circular (AC) explains how you can use the new provision in Title 14 of the Code of Federal Regulations (14 CFR) §§ 21.1(a)(3), 21.8, 21.9(a)(4), and 21.50(c) for commercial parts.

This AC is not mandatory and does not constitute a regulation.

 Active AIR-100 2010-09-29
21-47 Submittal Of Data To An ACO, A DER Or An ODA For A Major Repair Or Major Alteration

This advisory circular (AC) provides guidance for creating a complete data package when data is submitted to a Federal Aviation Administration (FAA), aircraft certification office (ACO) or to FAA designees, to support a major repair or major alteration.

 Active AIR-100 2010-09-29
21-48 Using Electronic Modeling Systems as Primary Type Design Data

This AC provides information and guidance on developing procedures for using electronic modeling systems in design, manufacture, installation, and inspection processes.

Active AIR-100 2010-10-29
21-16G RTCA Document DO-160 versions D, E and F, “Environmental Conditions and Test Procedures for Airborne Equipment”

a. This advisory circular (AC) identifies RTCA Document No.

Active AIR-100 2011-06-22
21-46A Technical Standard Order Program

This advisory circular (AC) explains the Technical Standard Order (TSO) process outlined in Title 14 of the Code of Federal Regulations (14 CFR) part 21, subpart O, for manufacturers producing articles under a TSO authorization (TSOA) or letter of design approval (LODA).

 Active AIR-100 2017-02-23
21-25B Approval of Modified Seating System Initially Approved Under a Technical Standard Order

In this AC, we address modifications that result from design changes, repairs, and alterations pursuant to Title 14 of the Code of Federal Regulations (14 CFR) parts 21 and 43.

This AC is not mandatory and does not constitute a regulation.

Active AIR-100 2016-01-11
21-44A Issuance of Export Airworthiness Approvals Under 14 CFR Part 21 Subpart L

This advisory circular (AC) provides guidance on how to show compliance with Title 14 of the Code of Federal regulations (14 CFR) part 21, subpart L, Export Airworthiness Approvals. This AC is not mandatory and does not constitute a regulation.

Active AIR-100 2015-10-01
21.101-1B Establishing the Certification Basis of Changed Aeronautical Products

This advisory circular (AC) provides guidance for the application ofthe "Changed Product Rule (CPR)," pursuant to Title 14 ofthe Code ofFederal Regulations (14 CFR) 21.101, Designation ofapplicable regulations, and 21.19, Changes requiring a new type certificate, for changes made to type certificated aeronautical products.

 Active AIR-100 2016-03-11
45-2E Identification and Registration Marking

This advisory circular (AC) provides information about Title 14, Code of Federal Regulations (14 CFR), part 45, Identification and Registration Marking.

Active AIR-100 2015-10-01