Just before the opening of Heathrow’s Terminal 5 in the UK, staff tested the brand new baggage handling system built to carry the vast amounts of luggage checked in each day. Engineers tested the system thoroughly before opening the Terminal to the public with over 12,000 test pieces of luggage. It worked flawlessly on all test runs only to find on the Terminal’s opening day the system simply could not cope. It is thought that “real life” scenarios such as removing a bag from the system manually when a passenger had left an important item in their luggage, had caused the entire system to become confused and shut down.
Over the following 10 days some 42,000 bags failed to travel with their owners, and over 500 flights were cancelled.
Resource: https://raygun.com/blog/costly-software-errors-history/
Ubora 