What does the 'A' suffix mean?

bstratt

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Feb 23, 2005
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Canuck
Checking terminal procedures on line and noticed that for one of the airports every approach plate now says 'A' . Amdt 12 is now Amdt 12A, Orig is now OrigA. I've gone over them with a fine tooth comb and can't find any differences. What does this mean?
 
A little confusing but if I read it correctly its for "non-permanent" changes? Still can't find any.
 
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