Safety costs money, plain and simple.
U.S. airlines increasingly get their heavy maintenance done overseas. It’s about cost. Ask an airline manager about it and they will tell you that they have supervisors and representatives at the foreign maintenance facilities. They will also tell you that the FAA will have a presence at these locations.
There is no way that the presence of a few Americans at a facility in a country like Nicaragua can equal the quality of work, or the worker skill level, of a U.S. based establishment.
The media has covered the Chinese produced foods and goods that have caused harm to the American consumer.
We need to take a close look at mechanical problems in U.S airliners that may be related to heavy maintenance performed by foreign facilities.