Many different metals are required in the repair of aircraft. This is a result of the varying needs with respect to strength, weight, durability, and resistance to deterioration of specific structures or parts. In addition, the particular shape or form of the material plays an important role. In selecting materials for aircraft repair, these factors … Read more
Prior to 1926, access to flying was uncontrolled. No licensing or certification was required. By the middle of the 1920s, it became obvious that unregulated private and commercial flying was dangerous. There was a growing awareness and acceptance that regulation could improve safety and encourage growth in aviation. Therefore in 1926, the aviation industry requested … Read more
Of primary concern in aircraft maintenance are such general properties of metals and their alloys as hardness, strength, malleability, ductility, elasticity, toughness, density, brittleness, fusibility, conductivity contraction and expansion, and so forth. These terms are explained to establish a basis for further discussion of structural metals. Hardness Hardness refers to the ability of a material … Read more
Aviation is so dependent upon that category of fluids called gases and the effect of forces and pressures acting upon gases that a discussion of the subject of the atmosphere is important to the persons maintaining and repairing aircraft. Data available about the atmosphere may determine whether a flight will succeed, or whether it will … Read more
Substances that cause corrosion of metals are called corrosive agents. The most common corrosive agents are acids, alkalies, and salts. The atmosphere and water, the two most common media for these agents, may also act as corrosive agents. Acids Moderately strong acids severely corrode most of the alloys used in airframes. The most destructive are … Read more
14 CFR Part 43—Maintenance, Preventative Maintenance Rebuilding, and Alteration Section 43.1—Applicability Paragraph (a) states quite clearly that aircraft (whether U.S.- or foreign-registered operating under 14 CFR part 121 or 135) and component parts thereof must be maintained in accordance with the rules set forth in this part. Although paragraph b states quite clearly the type … Read more
Aeronautical publications are the sources of information for guiding aviation mechanics in the operation and maintenance of aircraft and related equipment. The proper use of these publications greatly aid in the efficient operation and maintenance of all aircraft. These include manufacturers’ SBs, manuals, and catalogs; FAA regulations; ADs; advisory circulars (ACs); and aircraft, engine, and … Read more
Aviation-related regulations that have occurred from 1926– 1966 are reflected in Figure 1. Just as aircraft continue to evolve with ever improving technology, so do the regulations, publications, forms, and records required to design, build, and maintain them. The Federal Aviation Administration (FAA) regulations that govern today’s aircraft are found in Title 14 of the … Read more
A discussion of welds in this post is confined to judging the quality of completed welds by visual means. Although the appearance of the completed weld is not a positive indication of quality, it provides a good clue about the care used in making it. A properly designed joint weld is stronger than the base … Read more
Sound has been defined as a series of disturbances in matter that the human ear can detect. This definition can also be applied to disturbances which are beyond the range of human hearing. There are three elements which are necessary for the transmission and reception of sound. These are the source, a medium for carrying … Read more
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Aero Guide provides structured aviation study materials, technical explanations, and educational resources based on FAA handbooks and other aviation references. Explore aviation fundamentals, aircraft systems, airframe structures, powerplant systems, weight and balance, and more to support your aviation learning journey.
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