NEW : Brown was honorably discharged from the Army . Brown admitted he planned to build a bomb after he landed , court documents say . Army : Kevin Brown was arrested for carrying a weapon or explosives onto a plane . Brown tried to board flight at Florida airport 2003 .
NEW : Kevin Brown was honorably discharged from the Army . Brown admitted he planned to build a bomb after he landed , court documents say . FBI : Brown was arrested for carrying a weapon or explosives onto a plane . Brown tried to board flight at Orlando airport Tuesday .