Well this is my theory, think about it.
Flying is being scrutinized more and more everyday, this cost more money.
They have to cut corners to make a profit, even now if they charged you just for the fuel and maintenance you wouldn't be able to afford it.
This is why the government has to bail them out, people need to fly.
Now the only way they can sort of make money off the books (without the government knowing) is to cut down on actual maintenance, you know like. not replacing a bolt that needs to be replaced every 6 months that has been know and tested to last 9 - 10 months.
Understand? So that bolts that should be replaced at 6 months wont be, but it will show that it was replace on the maintenance records even if it wasn't.
But now you have another problem, those that don't know the maintenance records were falsified will never replace the bolt that should have been done 3- 4 months ago.
I use "bolt" as an example, it could as easily been a tire or a hydraulic pump for the landing gear.