This category of technical verbs is only for descriptive texts such as general information, system description and operation texts, and the descriptive parts of service bulletins.

Correct punctuation is important because it shows how the different parts of the text are related and prevents ambiguity.

If the danger is clearly specified, the person who does the task will understand the risk and be more careful.

If possible, always tell your reader what can occur if the safety instruction is not obeyed.

Complex sentence structure and the large number of meanings and synonyms that many English words have can cause confusion.

These FAA advisory circulars provide specific information regarding continued airworthiness requirements for the manufacturer and owner/operator.

The function and operation of each unit in the system should be described as well as the location of the units.

The index should show the chapter and subchapter in which a circuit of the system appears.

An alphabetical index by subject is to be included in the Introduction, as an assistance in locating the desired circuit.

For simplicity of presentation and understandability, complex systems should be divided into system-function rather than overall master schematic diagrams.

The two most common types of engines used in helicopters are the reciprocating engine and the turbine engine.