Originally Posted by
seekingblue
I'll look it up here in a bit. But I'm guessing it is a "should or may" vs Will or must.
That would be a deciding factor in if it must be followed.
Example: Method 2 for Airbus guys states, the PF should put in the points Associated with M2. Since it says “should” you don’t have to do it. It’s only a recommendation.
Should isn't a "recommendation" in FAA world. Should essentially means that item is required unless you have a good reason not to. It gives a little flexibility, but not much.
"Must" provides no flexibility, unless exercising emergency authority.
In other words, if you do something contrary to a "should," you might need to be able to explain your good reasoning why you didn't follow the guidance. It isn't the case that you can just say, "Oh, that's only a recommendation."