AM.I.J.R2
Risk managementEffect a repair can have on a flight surface.
From the FAA library
- Chapter 8: Cleaning & Corrosion Control › Powerplant Cleaning
done thoroughly. Grease and dirt accumulations on an air-cooled engine provide an effective insulation against the cooling effect of air flowing over it. Such an accumulation can also cover up cracks or other defects. When cleaning an engine, open ... steel brushes, or any tool or substances that mar or scratch the surface must not be used on propeller blades, except as recommended for etching and repair. Water spray, rain, or other airborne abrasive material strikes a whirling propeller blade…
- Chapter 4: Aircraft Metal Structural Repair › Basic Principles of Sheet Metal Repair › Flutter & Vibration Precautions
Rivet calculation table. The effect of repair or weight change on the balance and CG is proportionately greater on lighter surfaces than on the older heavier designs. As a general rule, repair the control surface in such a manner that ... distribution is not affected in any way, in order to preclude the occurrence of flutter of the control surface in flight. Under certain conditions, counterbalance weight is added forward of the hinge line to maintain balance. Add or remove balance…
- Chapter 7: Advanced Composite Materials › Solid Laminates › External Bonded Patch Repairs
limiting their use on weight-sensitive flight control surfaces. Figure 7-72. DVD cure cycle. Figure 7-73. Precured patches. Honeycomb sandwich parts often have thin face sheets and are most effectively repaired by using a bonded scarf type repair…