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Thread: Chewing Gum in NG new wheel well bay
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Old 3rd Sep 2017, 13:52
  #5 (permalink)  
tdracer
 
Join Date: Jul 2013
Location: Everett, WA
Age: 68
Posts: 4,459
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That's a Quality Assurance (QA) seal.
Basically the inspector verifies the joint has been properly torqued, then puts his(her) mark on it as an inspection verification.
Also makes it pretty obvious if someone has messed with it.
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