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90-89B AFS-350 Amateur-Built Aircraft and Ultralight Flight Testing Handbook

This advisory circular (AC) provides suggestions and safety related recommendations primarily to assist amateur and ultralight builders in developing individualized aircraft flight-test plans. It also provides guidance for experimental light sport aircraft flight testing after modifications to the aircraft. It provides recommendations and suggestions you can combine with other sources on test flying, such as the aircraft plan/kit manufacturer’s flight testing instructions and other flight testing data. This will help you develop a detailed flight-test plan, tailored for your aircraft and resources.

This AC attempts to make you aware that test flying an aircraft is a critical undertaking, which you should approach with thorough planning, skill, and common sense. The flight-test plan is the heart of all professional flight testing. The plan should account for every hour spent in the flight-test phase and you should adhere to it with the same respect for the unknown that all successful test pilots share. The time allotted for each phase of a personalized flight-test plan may vary, and each phase may have more events or checks than suggested in this AC, but your goals, should be the same. You should add flight-test operational and performance data to the aircraft’s flight manual so you can reference the data prior to each flight.

90-113A AFS-400 Instrument Flight Procedure Validation (IFPV) of Satellite-based Instrument Flight Procedures (IFPs)

This advisory circular (AC) provides guidance for conducting instrument flight procedure validation (IFPV) of satellite-based performance-based navigation (PBN) instrument flight procedures (IFP) for both fixed-wing and helicopter aircraft. It also addresses validation of helicopter wide area augmentation system (WAAS) special IFP. This AC supplements and does not change the requirements of Federal Aviation Administration (FAA) Order 8200.1, United States Standard Flight Inspection Manual. Ground validation, preflight validation (including simulator evaluation and obstacle assessment), and flight validation are described in this document.

The primary audience for this AC is non-FAA service providers performing IFPV. The secondary audience is Flight Standards Service Aviation Safety Inspectors and Air Traffic Organization (ATO) personnel within the FAA who are directly associated with the FAA IFPV process and/or charged with the responsibility to authorize and provide oversight of non-FAA IFPV service providers.

90-109A AFS-800 Transition to Unfamiliar Aircraft

This advisory circular (AC) is intended to help plan the transition to any unfamiliar fixed-wing airplanes, including type-certificated (TC) and/or experimental airplanes. It provides information and guidance to owners and pilots of experimental, simple, complex, high-performance, and/or unfamiliar airplanes. It also provides information to flight instructors who teach in these airplanes. This information and guidance contains recommendations for training experience for pilots of experimental airplanes in a variety of groupings based on performance and handling characteristics. This AC does not address the testing of newly built experimental airplanes. The current edition of AC 90-89, Amateur-Built Aircraft and Ultralight Flight Testing Handbook, provides information on such testing. However, if a pilot is planning to participate in a flight test program in an unfamiliar and/or experimental airplane, this AC should be used to develop the skills and knowledge necessary to safely accomplish the test program utilizing the guidance found in AC 90-89.


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