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Old Feb 10, 2007 | 2:13 am
  #38  
nnn
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Originally Posted by LarryJ
They are not. FL180 is the lowest flight level that can be assigned in the US. If FL180 is below 18,000' MSL due to low pressure then FL180 is not assignable.
Thanks, you're right. I should have done my research before speaking.
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