11.   Several Oakland base mechanics defended the maintenance procedures, although some said they had heard of possible irregularities.

12.   Still, Alaska has invested heavily in modifications, new maintenance procedures and studies aimed at pinpointing and solving any problems.

13.   Test missiles would be stored at Fort Greely, allowing crews to practice maintenance procedures and testers to check whether rocket fuel deteriorates in Arctic temperatures.

14.   The agency is already preparing a special regulation, which it hopes to issue this fall, requiring new inspection and maintenance procedures for all airline fuel tanks.

15.   The maintenance procedure just described is for a fixture with one valve and spout.

16.   The parts gave the safety board an opportunity to take a clean look at an uncontained failure and recommend changes, if necessary, to engine maintenance procedures.

17.   The two-way link also will help astronauts perform difficult maintenance procedures, because they will be able to watch engineers demonstrate repairs, Bantle said.

18.   They will also indicate what maintenance procedures should be followed to keep everything running smoothly.

19.   This was due to faulty maintenance procedures that had damaged the engine mounts. . . .

20.   Unlike the book, however, the computer program includes sound and video clips and narrated animations to make even complicated repair and maintenance procedures clear and entertaining.