Why is it essential to use the correct rivet size and type in aircraft structural repairs?

Using the correct rivet size and type is fundamental in aircraft structural repairs because rivets are critical fasteners that hold structural components together. The primary role of rivets is to provide mechanical strength and ensure that joints can withstand operational loads, stresses, and vibrations experienced during flight.

If incorrect rivets are used—whether they are of the wrong size, material, or type—the joint may not achieve the necessary strength. This can result in insufficient load-bearing capacity, leading to structural failure under stress. Such failures can compromise the integrity of the aircraft, posing severe safety risks to the aircraft and its occupants.

In contrast, choosing the right rivets ensures that repairs adhere to engineering specifications, maintain the aircraft's structural integrity, and safeguard operational reliability, which is paramount in aerospace applications.