The chief executive of Airbus, Tom Enders, has staunchly defended executives at the struggling planemaker against claims of insider trading.
Delays to the Airbus A380 have cost the firm billions
The Airbus boss told the BBC that he was "convinced" that the firm's top management "had done nothing wrong".
He said there were "no accusations" against anyone at the firm despite claims of suspicious share sales in its parent, EADS, from the French press.
They relate to share sales in the run up to announced delays to the A380.
Mr Enders also said he was "appalled" at how a confidential report from stock market regulator AMF was leaked to the French press and splashed over their front pages over the past week.
"That's very serious for our employers who are made to believe if they open the newspaper that there are a bunch of crooks running the company," he told BBC's World Business Report.
"It's a very serious question for our customers this is why we have to take action to defend ourselves against these unfounded claims."
Illegal share sale?
Newspapers, such as the daily Le Figaro, have suggested that the report examined the conversion of stock options by 21 former and current managers between November 2005 and March 2006.
Shortly after this period, in June, it was announced that the launch of the company's much-anticipated superjumbo Airbus 380 would be delayed because of severe technical problems in its production.
The delivery of the first A380, the world's largest plane, to Singapore Airlines next week for its inaugural flight to take place later in October, is two years behind schedule, hitting profits at the defence firm EADS, which owns the Airbus manufacturer.
The press reports suggest that Airbus executives are under suspicion for making a profit from the sale of their shares, while knowing about the setbacks to the A380.
To that Mr Enders responded: "Lets not create the impression that we are doing something wrong here.
"Stock options are a legitimate means of incentivising management that has been so in the past and in so many companies, including ours, at the present."
Meanwhile, the government, a major shareholder in EADS, has also come under fire from the media for allowing state bank CDC to buy shares from defence firm Lagardere in April 2006 despite knowing about the problems at the plane maker.
Parliament has launched an investigation into the role of the state in relation to the alleged insider trading.