This organization was asked to investigate the readability of maintenance documentation in the civil aviation industry and find a solution to simplify the language used to write such documentation.

The backside of the title page should be left blank to avoid the need for revision and potential loss of the inserted airplane serial and registration numbers.

Longitudinal trim is accomplished by movement of the horizontal stabilizer.

A position transmitter is located below the PCUs.

The most common mistakes in performing the adverse loading checks are failure to convert the oil from quarts to gallons.

The ratio of width to depth must be 30 or more at each point.

Definitions or explanations of symbols, abbreviations, and terminology used in the Handbook should be provided.

Being able to reduce friction, ball bearings are used extensively in many kinds of modern aircraft.

We increase the length of the wire，thus increasing its resistance.

Please apply penetrating oil，If you cannot remove a bolt because of corrosion.

Personnel must be familiar with the emergency safety procedures prior to using the material.