From Matt Wald at NYT:

More than a year before a twin-engine turboprop flown by Colgan Air crashed on approach to Buffalo, a Federal Aviation Administration inspector complained to his superiors about the rocky start the airline was having with that model.

Three times, he said, the pilots flew the airplane faster than the manufacturer’s specifications allowed, but they initially refused to report this and have the plane inspected for damage. They flew with a broken radio and did not want to write that up in the maintenance log, as the rules require, he said, because it might delay the next test flight. And they tried three approaches to the airport in Charleston, W. Va., and “botched” all of them, failing to get the plane at an appropriate altitude, on the right path and at the right speed for landing.