1.   And it says the vibration problem has been addressed.

2.   But it still had the vibration problems that plagued it in windmills.

3.   Lori Gunter, a safety spokeswoman for Boeing, said the vibration problem has been caused by premature wear.

4.   Breedlove spokeswoman Cherie Danson said her team spent Sunday working on a vibration problem with the Spirit of America.