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Document Title: AC 00-1.1B, Public Aircraft Operations–Manned and Unmanned
Summary: This advisory circular (AC) provides information to assist in determining whether government-owned or government-contracted manned and unmanned aircraft operations conducted within the territory of the United States are public or civil aircraft operations under the statutory definition of "public aircraft" in Title 49 of the United States Code (49 U.S.C.) §§ 40102(a)(41) and 40125. Additionally, this AC contains Federal Aviation Administration (FAA) policy pertaining to civil aircraft operators that provide contract support to government entities. The intent of this material is to better define the responsibilities of the parties to these contracts.
References: Title 14 of the Code of Federal Regulations (14 CFR):
  • Part 91, General Operating and Flight Rules
  • Part 133, Rotorcraft External-Load Operations
  • Part 135, Operating Requirements: Commuter and On Demand Operations and Rules Governing Persons On Board Such Aircraft
  • Part 137, Agricultural Aircraft Operations
Title 49 of the United States Code (49 U.S.C):
  • Section 40102, Definitions
  • Section 40125, Qualifications for Public Aircraft Status
Advisory Circular 120-16, Air Carrier Maintenance Programs
Document for Download: Draft Document (PDF)
Draft Document Comment Grid (MS Word)
Comments Due: May 24, 2018
How to Comment: Deliver comments by mail or hand to:

Sarah Sansolo
600 Maryland Ave SW
Suite 610E
Washington, DC 20024


Email comments to:
Email Comments
Document Title: AC 43-4B, Corrosion Control for Aircraft
Summary: This advisory circular (AC) is a summary of the current available data regarding identification and treatment of corrosive attack on aircraft structures and engine materials. Corrosion inspection frequency, corrosion identification, and the Federal Aviation Administration (FAA) emphasize here that corrosion treatment continues to be the responsibility of you, the operator, and you should accomplish these inspections per this AC, the manufacturer’s recommendations, or your own maintenance program. The information in this AC is applicable to aircraft for which the manufacturer has not published corrosion control information.
References: Title 14 of the Code of Federal Regulations (14 CFR):
  • Part 43, Maintenance, Preventative Maintenance, Rebuilding, and Alteration.
  • Part 91, General Operating and Flight Rules
  • Part 121, Operating Requirements: Domestic, Flag, and Supplemental Operations
  • Part 135, Operating Requirements: Commuter and On Demand Operations and Rules Governing Persons On Board Such Aircraft
Document for Download: Draft Document (PDF)
Draft Document Comment Grid (MS Word)
Comments Due: June 21, 2018
How to Comment: Deliver comments by mail or hand to:

Lauren Vocke
600 Maryland Ave SW
Suite 610E
Washington, DC 20024


Email comments to:
Email Comments