routine maintenance checkups after every 200 hours of flight, and it had been inspected three days before the crash, Wason said. Dana Air says its fleet comprises Boeing MD-83 aircraft. Boeing's website says that model can carry 155 to 172 passengers, cover up to 2,504 nautical miles and has a fuel capacity of 7,000 gallons. The airline, which is privately owned and based in Lagos, began operations in 2008. CNN's Jill Dougherty and Devon Sayers contributed to this report.