Types of drawingsĭrawings can be found in many documents like service bulletins, maintenance and structural repair manuals, engineering instructions, and supplemental type certificate (STC) installation instructions. For consistency this article will use the word drawing. Those traditional methods have given way to more modern methods - yet the term “blueprint” is still used today. The aircraft maintenance technician, AMT, must be able to interpret this graphic, determine drawing orientation, the correct drawing affectivity and revision status, and all of the applicable note information.īefore we get started, when drawings were first reproduced in the mid 1800s, early technology would produce a document having a blue background with white lines and writing. The basic purpose of the blueprint is to describe parts and repairs in a graphical fashion and provide a host of design information to the end user regarding dimensions, processes, specifications, tolerances, and more. In the world of aircraft maintenance and construction, blueprints are regularly used to perform a variety of tasks.

Rivet drafting