Acting US Defence Secretary Patrick Shanahan has been cleared of allegations that he showed favouritism towards Boeing, his ex-employer, ONAreports citing BBC.
The defence department's inspector general had been investigating him over a complaint filed in March.
A watchdog accused him of "promoting" Boeing and "disparaging" its competitors during meetings.
But the inquiry found that Mr Shanahan had "fully complied with his ethical obligations and ethical agreements".
Mr Shanahan, who worked at Boeing for 30 years, was serving as deputy defence secretary at the time the allegations were made.