Work with your mentor to identify an exterior metal panel, with damage that can be repaired, but lacks access to the backside of the panel.
Utilize various repair techniques such as:
Vacuum pull tower
Wiggle wire
Dent puller with keys (ProSpot DA3)
Dent puller using slide hammer
Use a vacuum pull tower or slide hammer to apply pulling pressure to the vehicle.
Continue to keep pulling force applied to the panel, while shaping and stress relieving the panel with a body hammer.
Move pulling force to various parts of the panel, while gently hammering down high spots, until the panel is ready for filler application.
Following the material data sheet for the filler product that is going to be applied, prep the surface of the panel for application of filler material .
Allow the filler to cure.
Shape and sand the filler to complete the repair.
After completion of the final repair, submit a detailed photo prior to sending to paint.