So you know that Lightning Dust was kicked out of the Academy, but do you know what went into it? This provides potential insight based off of accounts of the incident.

Part of what I consider an unofficial deleted scene of Ponyville [may become a series], we find out in the periods of time between the obstacle course and Rainbow Dash's redemption. From complaint to canning, it covers what was reported.
Keep in mind that this is a fanon story, and while it borrows elements from the show, it was not created as part of the show. Even though this is one whole story, it is split up into three "chapters" in order to flow with the canon timeline of the episode.
Also, any editing would be appreciated, this is my first attempt at the fanfiction world