Preventive Maintenance.

DOE-STD-1050-93

2.22 Preventive Maintenance. Preventive maintenance includes periodic and planned

maintenance actions taken to maintain SSC within their design operating conditions,

extend its life, and is performed to prevent SSC failure. This includes technical safety

requirements surveillances, in-service inspections, and other regulatory forms of

preventive maintenance.

2.23 Root Cause. A determination based on analytical techniques that determines the

fundamental cause of failure.

2.24 Structures, Systems and Components (SSC). Physical items designed, built, or installed

to support the operation of the plant.

2.25 Technical Support. The engineering, design, specialized inspections, planning, or other

such support of capital asset maintenance and repair.

2.26 Work Control Document. Proceduralized document used by facility personnel to

perform inspections, testing or work.