西宁机场维修放行人员、勤务人员实行（）工作制（每日（）交接班）

22.Do not loosen the nut to alignit.

21.Database synchronization is in progress

20.Install the valve and the correct gasket.

19.Make sure that the latch isfully engaged.

18.Holdthe cylinder tightly

17.Examine the seal for defects.

16.The control unit is installed aft of the cockpit.

15.Install the manifold

14.Documents must be readily revisable.

13.Deactivation/Reactivationprocedures for circuits,systems,units,etc,shall be included