from the contract:
"With respect to each employee who elects to make employee elective deferral contributions, the Company will pay a matching contribution into the Pilot’s 401(k) account on a two hundred percent (200%) basis up to the first five percent (5%) of such employee’s pay."

The way I read this 401(k) is that they pay double what you put in up to your first 5%. so to make this easy:::

You Them
2% 4%
3% 6%
5% 10%
>5% still just 10%