(Reuters) - Aircraft component maker TransDigm Group said on Friday it had agreed to repay $16 million to the Pentagon after it was admonished last week during a hearing on its billing practices.

Executives for TransDigm testified before a Congressional committee after a Pentagon-endorsed investigation found the company made profits exceeding 1,000% on some spare parts and equipment.

“While this is a good first step, we must do even more in the future to prevent unscrupulous contractors from holding us hostage through abusive monopoly contracts,” House Oversight Committee Chairman Elijah Cummings said.