This subsystem includes items such as DME, transponders, radio compass, LORAN, VOR, ADF, etc.

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.

To make the curing process slower, decrease the heat that you apply to the compound.

Adjust the potentiometer until you do not hear a hum from the loudspeaker.

The title page shall contain the airplane serial number and registration number if appropriate.

If you install the upper drag strut with the head down, it will hit the lower drag strut during retraction.

Make sure that the indication on the gauge agrees with the quantity that is in the tank.