AM.II.A.S14
SkillDetermine extent of damage and decide if metallic structure is repairable.
From the FAA library
- Chapter 4: Aircraft Metal Structural Repair › Repairability of Sheet Metal Structure › Structural Support During Repair
Repairability of Sheet Metal Structure The following criteria can be used to help an aircraft technician decide upon the repairability of a sheet metal structure: • Type of damage. Figure 4-170. Repair of cracks by stop-drilling. Type of original ... material. Location of the damage. • Type of repair required. • Tools and equipment available to make the repair. The following methods, procedures, and materials are only typical and should not be used as the authority for a repair. Structural Support During…
- Chapter 4: Aircraft Metal Structural Repair › Basic Principles of Sheet Metal Repair › Types of Damage & Defects
metal, usually to an appreciable depth over a relatively long and narrow area, by mechanical means, as would occur with the use of a saw blade, chisel, or sharp-edged stone striking a glancing blow. • Dent—indentation in a metal ... produced by an object striking with force. The surface surrounding the indentation is usually slightly upset. • Erosion—loss of metal from the surface by mechanical action of foreign objects, such as grit or fine sand. The eroded area is rough…
- Chapter 4: Aircraft Metal Structural Repair › Basic Principles of Sheet Metal Repair
When it becomes hot, other metals become easily attached to it. Particles of titanium often become welded to the sharp edges of the drill bit if the drill speed is too high. When drilling large plates or extrusions ... water soluble coolant or sulphurized oil. Note: The intimate metal-to-metal contact in the metal working process creates heat and friction that must be reduced or the tools and the sheet metal used in the process are quickly damaged…