Course Description

Torsion, tension, and the vibrations that occur during normal flight may cause some types of fasteners used in airplane assembly to loosen. These fasteners must be secured so that they remain in place.

By the end of this course, you will be able to

• Understand why bolts are secured

• Describe the ways bolts are secured

• Recognize a pair of lockwire pliers

• Recognize castellated nuts and cotter pins

• Understand how to use a cotter pin with a castellated nut

Estimated completion time (hours): 1.1