In the description of the airplane＇s Electrical System, use of ground power units and battery charging shall be discussed.

Where possible and practical, language and writing style obey the rules and the dictionary of STE.

The ventilation system uses differential pressure to pull air out of the airplane.

Shutoff the airflow in the air conditioning ducts to be inspected.

The surge tank drain check valve also prevents fuel flow from main tank 1 and main tank 2 to the surge tank.

The writing rules cover aspects of grammar and style. The dictionary gives the general words that a writer can use.

The symbol means all or most of the rules in that section.

This index helps you find the applicable STE rules related to different specific subjects.

During the APU operation, examine the oil temperature sensor for signs of oil leakage.

The system must be deactivated in order to prevent the thrust reverser from operating accidentally.

Make sure the girt bar is not engaged in the floor-mounted escape slide brackets.