do we have enough trained pilots and pilot crew to operate the aircraft. for every aircraft you've got, you need to have three complete crews to cover 24 hours of operations. you're talking 30 to 40 people, including engineers and all of the other people that support the aircraft. it's not easy introducing an aircraft into service. it's not like putting a taxi on the road. it's a complex business. can that airline manage this properly and safely? and this thing we now refer to as a safety management system. safety management systems are required to be in place for every air ra carrier regardless of its size. it's an international requirement. those safety systems -- i've had the occasion to inspect some of