ORIGINAL: Airplanes400
When airframes start failing due to the same faliure, time after time, it is the manufacturer's fault. And the manufacturer should replace the airframe, as well as the damaged equipment.
In the case of jets, the manufacturer is held to a much higher standard than the manufacturer of a .40 ARF. A jet manufacturer should be well-qualified, have an engineering degree, be consistently capable, and be able to produce a much higher quality product that is safe to fly, and has no defects. If they can't do that, they don't belong in the business of producing jets.
Additionally, the manufacturer should be engineering and testing their jets to meet the demands of a jet in high performance flight. If the manufacturer is desiging 200 mph, 50+ lb. jets with engineering designs and flaws, and building to the standards of a .40 or .60 sized plane, that manufacturer should not be building jets, and should be accountable for damages.
And you can bet that if that jet manufacturer is a US based company whose jet caused significant damage or personal injury due to faulty designs, a lawyer will add the manufacturer to the lawsuit being filed.
The question is not should they replace the airframe. It is my opinion that they should, if it is a provable defect. The question in this thread is:
Is it reasonable to expect the airframe manufacturer to replace the damaged engines too?