The phrase "preferred seating" is taking on a whole new meaning after a row of seats came loose on three separate mid-air American Airlines flights.

American is now under investigation by the Federal Aviation Administration.

The latest incident happened Monday on a flight from New York to Miami.

The plane was forced to return when a row began moving around during the flight.

American says the same thing happened on one of their flights from Colorado to Callas last Wednesday.

Since filing for bankruptcy protection in November, American has been involved in labor disputes with its union workers that have disrupted flights.

But airline officials say the loose seats are not a result of sabotage.