This advisory circular (AC) provides information on maintenance programs to foreign air carriers and foreign persons operating U.S.-registered aircraft under Title 14 of the Code of Federal Regulations (14 CFR) part 129. Part 129, § 129.14(a) requires that each foreign air carrier and each foreign person operating a U.S.-registered aircraft within or outside the United States in common carriage shall ensure that each aircraft is maintained in accordance witha program approved by the FAA. Title 14 CFR part 43 prescribes the rules governing the performance of maintenance, reventive maintenance, and alterations of aircraft having a U.S. airworthiness certificate. You may submit an alternate maintenance program to the Federal Aviation Administration (FAA) if you ascertain the maintenance program meets therequirements of the pertinent FAA regulations. However, if you use the means described in this AC, you should conform to it in all important respects to assure acceptability.

Provides information and guidance for the implementation of Change 7 to FAR Part 129 (sections 129.25, 129.26, and 129.27) which became effective 9/11/81.The sensitive nature of many security procedures precludes full discussion in this AC. FAA Security Inspectors located throughout the U.S., as well as Foreign Air Carrier Principal Security Inspectors, located at FAA offices in Brussels, Belgium, and at FAA Regional Headquarters in the U.S., having responsibility for those foreign air carriers operating within the FAA offices geographical area of responsibility, are available to discuss the many issues that may arise regarding implementation and procedural details of security safeguards.