Russian leasing company Avia Capital Services filed a lawsuit against the Boeing aircraft manufacturer to break the contract on the delivery of 35 Boeing 737 Max jets, after the aircraft were grounded worldwide over flight stability concerns. This reported by Sputnik.

The Russian firm, a subsidiary of Russia's Rostec state corporation, said that the two deadly plane crashes involving Boeing 737 Max jets happened because of “negligent actions and decisions of Boeing” both in designing the aircraft and “withholding critical information” from US aviation safety authorities, the Financial Times newspaper reported.

The lawsuit was reportedly filed at the Cook County circuit court in Chicago. The Russian company accuses Boeing of intentionally hiding sensitive safety information about the aircraft.

Avia Capital Services says it had given Boeing a cash deposit of $35 million as part of the order and asks that the money be returned, with interest, along with $75 million in lost profits. The total sum demanded by the company under the lawsuit amounts to $115 million.

Steven Marks, the lawyer of Avia Capital Services, told Financial Times that Boeing had offered compensation to the firm but it turned out to be inadequate.

“I think you will see a number of other operators filing suit in coming months. This will be the first of many to come,” Marks said.