USAToday had an article about this incident. It reports it as well as we have seen on this thread.
What does come to mind is this: cost.
You pay 100's of millions to buy a big beautiful plane...yet you skimp on what appears to be minor maintenance (drains).
This problem will only get worse as more planes are sent to cheap maintenance facilities to save money...in the short run.
I've seen so many brand new expensive cars on the side of the road...spent money on the car...couldn't spend 40 bucks for an oil change.
you get the picture!?