The Federal Aviation Administration confirms that it's looking into why cockpit windshields on two American Airlines jets overheated and cracked in mid-air.

The latest incident happened Saturday on a Boeing 767 international flight to New York.

Two weeks ago, the pilot of another American Airlines 767 wide-body jet diverted to Dallas/Fort Worth International Airport with the same problem - a cracked windshield.

In both cases, electrical systems in the windshield heaters short-circuited and burned portions of the window.

The Wall Street Journal reported 38 similar incidents over the last decade.