The U.S. is recovering “better than is often portrayed,” he said, but problems regarding debt , entitlement and tax still needed to be dealt with. “These are issues that if properly solved could have an impact on Boeing.”

He warned that defense spending in the U.S. will be cut “dramatically” and said that both the Republicans and the Democrats are “paralyzed” over taking action to prevent this.

Boeing will release its second quarter earnings on July 25. First quarter revenue was $19.4 billion with earnings per share at $1.22.

To watch Boeing CEO Jim McNerney speak to CNBC, click here .

To watch Air Lease CEO Steve Udvar-Hazy speak to CNBC, click here .

To read more about Farnborough International Airshow 2012, click here .

— By CNBC.com's Katy Barnato

Davos: Was the Mood Too Good to Be True?

Worst Not Over for Europe Yet: Canada Bank Official

Bill Gates: Malaria Can Be Eradicated

RIM Will Do 'Muhammad Ali Thing in Round 8': CEO

CEOs 'Struggle for Survival' in Davos

More Davos 2013