21.   It only made three airplane deliveries in March, and the delays forced airline customers to begin canceling flights this week.

22.   Its contracts with airline customers contain strike clauses that allow the company to renegotiate delivery dates.

23.   Key airline customers helped design the new twin-jet, a change in strategy for the normally-secretive Boeing.

24.   Meanwhile, Boeing employees continued working around the clock Monday to assemble, package and ship out wire repair kits to its airline customers around the world.

25.   McDonnell Douglas brought in seven new orders and three new airline customers.

26.   Sales to airline customers are strong because there is growing demand for aircraft as passenger traffic increases.

27.   Several airline customers chose to reveal previously signed orders at year end, Boeing officials said.

28.   Stonecipher admitted that McDonnell Douglas has a tough battle ahead to convince airline customers that its commercial aircraft business is not going away.

29.   The action would make mandatory a course of action that Boeing had offered as an option to airline customers almost two years ago.

30.   The catalog is meant for airline customers who need a part quickly, the source explained.