Her appeal was granted. She gets to stay in the Corps.
She also gets every single punishment that the cadets who actually did something wrong got. Every single one. Because, you know, she lied.
It appears that what nailed her was her desire to tell the whole story, which lead her to write a second explanatory statement, which lead them to say that the first was therefore a lie. Apparently, their standard for statements is not 'truthful and complete', but just 'truthful'. Leave out whatever you want. She told the full truth, and got nailed for it.
But she got what she wanted. She's still in the Corps.