You decide to fly United Airlines and splurge a few of your 400,000 precious miles to upgrade to a business class seat. After you pay, you take a gander at your e-ticket and see that you'll be flying ...
The aircraft inspected include the Airbus 330-900NEO, Airbus 330-300CEO, Airbus 320, Boeing 737-800NG, Boeing 737-900ER and ATR 72. The Boeing 737-800 is commonly used by airlines worldwide.