Aviation Mechanic - General, Airframe, and Powerplant › II. Airframe › Task B. Non-Metallic Structures

AM.II.B.K11

Knowledge

Structure surface preparation.

Study note

Get a short, cited explanation of this element written from the FAA handbooks: the core idea, the numbers that matter, common test traps, and a quick self-check.

From the FAA library

Aviation Maintenance Technician Handbook - Airframe p. 7-40
Chapter 7: Advanced Composite Materials › Solid Laminates › Composite Patch Bonded to Aluminum Structure
structural enhancement or blendout filler, the high modulus fiber composites offer negligible aerodynamic resistance and tailorable properties. Surface preparation is very important to achieve the adhesive strength. Grit blast silane and phosphoric acid anodizing are used to prepare aluminum skin ... maintaining water-free bond surfaces, and chemically and physically prepared bond surfaces. Secondarily bonded precured doublers and in-situ cured doublers have been used on a variety of structural geometries ranging from fuselage frames to door cutouts to blade stiffeners…
Aviation Maintenance Technician Handbook - Airframe p. 4-90
Chapter 4: Aircraft Metal Structural Repair › Repairability of Sheet Metal Structure › Structural Support During Repair
static loads. The aircraft structure can be supported adequately by the landing gear or by jacks where the work involves a repair, such as removing the control surfaces, wing panels, or stabilizers. Cradles must be prepared to hold these components…
Aviation Maintenance Technician Handbook - Airframe p. 4-79
Chapter 4: Aircraft Metal Structural Repair › Hand Forming › Forming by Bumping
When forming and bearing surface for fastening the metal, the block or…