The graduation theses applies itself to business model analysis of the company Aircraft Industries, a.s. which run a business in production and sales of small civil aircrafts L-410. The company is struggling with period full of uncertainty which caused the fall of sales, fabrication restriction as well as loss in trading incomes. Unfortunately, according to some analysis performed in the diploma work, the current problems have not been caused just by contemporary events, though by long-term inappropriate set of processes in the firm, too. After all, the work shows possible development in the near future, its impact on the company, as well as suggestions which should be received and accepted by management to avoid any further negative impacts on the company.