This advisory circular (AC) provides information relating to the Bilateral Aviation Safety Agreement (BASA) and accompanying Maintenance Implementation Procedures (MIP) between the United States and Canada. This AC is not mandatory and does not constitute a regulation. This AC presents recommendations for an acceptable means, but not the only means, to comply with the current revision of the MIP.

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.

This advisory circular (AC) ensures that parts fabricated during maintenance and alteration have an equivalent level of safety as those parts produced under the original design holder’s production certificate. This AC provides one means of complying with the requirements of Title 14 of the Code of Federal Regulations (14 CFR) parts 21 and 43 for the design and fabrication of parts by persons performing maintenance and alterations using methods, techniques, and practices acceptable to the Administrator. As required by regulations, such parts fabrication and their implementation must be accomplished "in such a manner...that the condition of the aircraft, airframe, aircraft engine, propeller, or appliance worked on will be at least equal to its original or properly altered condition." This AC is not mandatory and does not constitute a regulation. It outlines one method (but not the only method) of compliance with the rules. A person may elect to follow an alternative method, provided the Federal Aviation Administration (FAA) finds the alternative method to be an acceptable means of complying with the applicable requirements of 14 CFR.

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). This AC also gives instructions for completing the Field Approval Checklist and shows a sample Compliance Checklist format.

Provides a recommended inspection program for existing and new owners of L-39 Albatross aircraft operating under an Experimental Exhibition Special Airworthiness Certificate. While this AC provides one way of addressing the inspection and overhaul provisions found on the aircraft’s operating limitations, it may not be the only way of addressing the requirements for continued airworthiness of L-39 aircraft. This AC is not meant to supersede existing L-39 inspection programs.

Provides information and guidance for the maintenance of emergency evacuation systems (EES) used on aircraft operating under the provisions of Title 14 of the Code of Federal Regulations (14 CFR) part 121. Additionally, this AC discusses the responsibilities and means of compliance for the air carrier and persons performing maintenance.

Provides guidance regarding test cell correlation procedures for test cells used for in-service acceptance testing of turbofan and turbojet engines. This AC discusses the effects of the design, operation, and modification of a test cell and engine test hardware on engine performance. The AC also provides guidance on conducting, evaluating, and maintaining test cell correlation. Like all advisory material, this AC is not in itself mandatory and does not constitute a regulation. The Federal Aviation Administration (FAA) issues it to describe an acceptable means, but not the only means, for correlating and maintaining a satisfactory correlation status of a test cell.

AC contains acceptable methods, techniques, and practices for inspection, prevention, control and repair of corrosion on avionic systems and equipment.

Issued monthly, the Aviation Maintenance Alerts are prepared from information submitted by persons who operate and maintain civil aeronautical products. The Alerts provide a uniform means through which safety and service experience may be interchanged. The intent of this publication is to improve safety and service reliability of aeronautical 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.

This advisory circular (AC) contains methods, techniques, and practices acceptable to the Administrator for the inspection and repair of nonpressurized areas of civil aircraft, only when there are no manufacturer repair or maintenance instructions. This data generally pertains to minor repairs. The repairs identified in this AC may only be used as a basis for FAA approval for major repairs. The repair data may also be used as approved data, and the AC chapter, page, and paragraph listed in block 8 of FAA form 337 when:

a. the user has determined that it is appropriate to the product being repaired;

b. it is directly applicable to the repair being made; and

c. it is not contrary to manufacturer’s data.

Describes methods, procedures and practices determined to be acceptable for showing compliance with the general aviation maintenance record-making and record-keeping requirements of Title 14 of the Code of Federal Regulations (14 CFR) parts 43 and 91. This material is issued for guidance and outlines several methods of compliance with the regulations.

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.

Summarizes current available data regarding identification and treatment of corrosive attack on aircraft structure and engine materials. SN 050-007-01044-3.

Provides guidance material which may be used to determine the adequacy of barometers used in the calibration of aircraft static instruments and presents information concerning the general operation, calibration, and maintenance of such barometers.

Provides guidelines concerning environmental conditions for instrument repair and overhaul shops and information on calibration of test equipment. Provides information on obtaining printed copies of this document or electronic access to it. Provides information on obtaining printed copies of this document or electronic access to it.

Provides guidance material useful to repair facilities in the maintenance of weather radomes.