31.   So will the potential return from replacing old equipment with newer, more efficient models.

32.   That means you can play old analog tapes, a comforting prospect for consumers asked to make a break with old equipment.

33.   That usually means the old equipment has been painstakingly maintained under corporate maintenance contracts, says Gary Guhman, sales manager for the exchange.

34.   The Air Traffic Control system kept breaking down because the agency had not replaced old equipment.

35.   The company attributed the decline to charges that were taken to write off old equipment and close plants.

36.   The FAA had blamed old equipment and errors by technicians installing replacements for the power failures.

37.   The failures have occurred in old equipment, and in systems in which new equipment was being installed.

38.   The old Shuttle equipment was facing obsolescense and becoming increasingly more difficult to maintain.

39.   The new ones did not, but several operators said they created other problems because they did not fit in easily with the old equipment.

40.   The pace of technology and the robust economy together encourage companies to upgrade old equipment, creating a steady flow of products to be re-manufactured.