Read the history of the DC-10 - a 'Particular Airplane'
They were grounded, several times, because they crashed.
Defective cargo door and floor panel design:
http://en.wikipedia.org/wiki/Turkish_Airlines_Flight_981
Defective methods for engine replacements & Defective flap and leading edge slats design caused wing asymetry:
http://en.wikipedia.org/wiki/American_Airlines_Flight_191
Defective redundancy systems and lack of safety valves in hyraulic systems:
http://en.wikipedia.org/wiki/United_Airlines_Flight_232
Defective fuel tank designs and flaws in the engines burned them to the ground:
http://aviation-safety.net/database/record.php?id=19780301-0
The 'Flight to the End of the World': (Flight crew lack of experience)
http://www.southpolestation.com/trivia/history/te901.html
All these crashes were caused by substandard designs or some form of human stupididy,
and the FAA grounded that particular model until they fixed the problems.
http://www.airsafe.com/events/models/dc10.htm
It was finally discontinued and replaced by the MD-11, which had all the fixes incorporated.
(But was still a piece of flying junk)
http://www.airsafe.com/events/models/md11.htm
Then the next flaw would rear it's ugly head and cause another crash, and another grounding was ordered for the next identified problem.
and on, and on . . . .
There are still over 5,000 oil wells workingin the Gulf, this moratorium was to review the
safety and procedues foe 33 that were either just starting, or were going to start soon.
Lifting the temporary ban is just plain stupid by this judge.
http://www.uglymales.com/wc/wp-content/uploads/2009/08/marty-feldman1.jpg