Using traditional fiberglass repair techniques for advanced composites will likely result in what?

Using traditional fiberglass repair techniques for advanced composites can lead to an unairworthy repair because methods developed for fiberglass may not be suitable for the different properties and characteristics of advanced composite materials. Advanced composites, such as carbon fiber reinforced polymers or aramid fibers, have specific bonding, stress distribution, and thermal expansion properties that differ significantly from traditional fiberglass.

When traditional techniques, which may involve different curing processes, resins, and mechanical properties, are applied to advanced composites, it can compromise the structural integrity of the repair. The repaired area may not have the same strength, flexibility, or durability as the original composite structure, potentially creating a failure point under stress or during operation. This can ultimately make the aircraft unairworthy, as it does not meet safety and certification standards required for flight.