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Thread: Police helicopter crashes onto Glasgow pub
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Old 1st Jan 2014, 11:44
  #1556 (permalink)  
ericferret
 
Join Date: Dec 2005
Location: England
Posts: 1,459
Received 34 Likes on 20 Posts
Cant say I've come across a check valve jammed against the flow in 40 years however there is always the exception.
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