Southwest Airlines fined 12 million bucks for crappy outsourced maintenance work. This is on top of the 9 million bucks they were fined in 2009 for crappy outsourced maintenance work.
Southwest had in house mechanics who actually knew what they were doing. Knowing what you are doing can be bad though because it generally costs more.
Not knowing what you are doing is always a lot more affordable. That is where outsourcing comes in. When saving money is more important the doing the job right, please remember to outsource.
In 2009 Southwest even went a step further and announced some of their maintenance would be done in El Salvador. When you think about qualified air plane mechanics, the first place that should pop in your head is El Salvador. They make between $4,500 to $15,000 a year. Nothing says “your safety is important to us” like doling out that kind of money.
Enjoy your flight.