CSeries FTV1 Engine #1 Issue
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Updated: June 2, 2014
Regarding the FTV1 uncontained engine incident of Thursday May 29, here' a few facts to put things in perspective.
The engines on FTV1 are the first two original made by Pratt & Whitney. Changes have been made since to the engines delivered to the other FTVs. That first engine had a history of high oil usage, different from the other engines that followed. It is interesting to note that its oil pump was replaced the day before. Tests were conducted on "the ground" not for no reason, something about that particular engine #1 of FTV1 was being worked on.
In August 2010, while testing the Boeing 787, a similar uncontained engine failure occurred. That engine was made by Rolls-Royce. It was related to having too much oil in the engine.
I'm assuming that P&W will be installing a recently produced version of the engine replacing the engine #1 on FTV1. Light damage to the wing is easy to repair.
Still, these engines will determine final produced engines. FTV1 to FTV4 are used for testing of them under actual aircraft fit conditions to find issues like this.