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Some time ago I tried to find out what the difference between a PW1100G and a PW1100GA exactly is. I am asking this question here because there seems to be no information online that could be useful for me to find this out.

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    $\begingroup$ Where do you find references to a PW1100GA? It doesn't seem to exist. $\endgroup$ Commented May 26 at 9:15
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    $\begingroup$ I already have seen it on a a321neo A/C status page when I visited the flight deck (PW1133GA), so it does exist and that is what I meant before, there is nothing about it online… $\endgroup$
    – dnblkj
    Commented May 27 at 14:02

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It probably refers to "Advantage" series, PW1100G-JM Advantage. About 1% more thrust and uses a little less fuel. Certified in 2023 and entered service in 2024.

https://prd-sc102-cdn.rtx.com/-/media/pw/products/commercial-jet-engines/pratt-and-whitney-gtf/family/files/pw_gtf_pc_pw1100g-jm_2021_web.pdf

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  • $\begingroup$ as you can see on this specs, the ,,advantage“ version of the PW1100G is signed with /2, whereas there are non-advantage models with the suffix ,,A“. $\endgroup$
    – dnblkj
    Commented May 29 at 6:36

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