This is a project we often read about. In a quick search I found this post:
The worst of these project failures, the most expensive and the most ambitious, was the attempt made by the Federal Aviation Authority to modernize the computers it used to keep track of what planes were in the air. The effort began in 1981 and ended in complete failure in 1994. The government hired IBM to do the actual work, and over the course of 14 years, IBM burned through $3.7 billion dollars. Nothing was accomplished. The project was finally shut down by Congress. Nothing came out of the project — not a single piece of software, nor even a line of code was ever used for anything.
A must! Don't miss to follow the link.