No data is is what we may use in the course of doing or duties either as a pilot or engineer. Data is what is use for our against you in a court of law.
Now it's your choice how you preform your duties but if you go outside the data them you are on your own. It very simple. And if the poh is changed that's not a problem or an stc is used the same it's then approved data.
It must be approved to be able to be used.
As for me being dyslexic we'll I am affair it's very true. My phone auto corrects there are words you my phone will not pick up and as such I have a weighting style that is a little different. If you can't see that or can't unstandardised that we'll sorry.
I can also say once again I have nothing to do with casa my file has a Red Cross over it with open with caution.
Now of to do sience again.
Cheers