The major steps to be followed by each CM walkdown team member are as follows:
Prior to each walkdown, meet with the Configuration Management Coordinator to
discuss which system(s) or portions of systems are scheduled for a walkdown.
Obtain the appropriate drawings, a copy of this procedure, and an adequate number of
blank CCD sheets.
Contact the Operations Department and obtain authorization from the operations
supervisor on shift to conduct a walkdown of the scheduled system(s).
Consistent with the appropriate Radiation Protection procedures, determine and comply
with the Radiation Work Permit (RWP) requirements for the area(s) scheduled for a
Upon entering the area, comply with the necessary safety requirements (e.g., ear
protection, hard hats, etc.) and determine the need for special access equipment (such
as ladders, scaffolding, etc.) as soon as practical; follow proper facility procedures for
acquiring and using this equipment.
CAUTION: Do not step on cable trays, insulated pipe, hand wheels, cantilevered
valves, operating equipment, or anything that may be damaged or could cause harm.
Conduct walkdowns of the identified system(s) or portions of systems to verify as-built
configuration by gathering component nameplate data and documenting this data on the
CCD sheets. Copies of the CCD sheets are included as Attachment A to this procedure.
NOTE: One or more of the team members may gather this data; however, care should
be taken to insure some degree of independence (i.e., at least one member should be
designated as the "first" party and a second member designated as the "second" party
(independent) verifier for each component).
During the walkdowns, check the accuracy of the P&IDs to ensure that the functional
relationships are correctly represented and that all components are accurately depicted.
Annotate the drawings, as appropriate, to show the as-found configuration and retain the
original for review and processing.
Perform the second party verfification of the component nameplate data and P&ID. Both
the first party and the second party verifier will sign the completed CCD street and P&ID,
NOTE: The objective of the second party verification is to ensure, by direct observation,
that the correct data is obtained. For example, if a valve is located overhead and access
to the component nameplate is by ladder, both team members will climb the ladder to
verify the information. Only one person going up and calling down to the other is not
considered a second party, independent verification and is therefore unacceptable for
the purposes of this step.
During the walkdowns, general facility material and housekeeping conditions should also
be observed and any irregularities or unusual conditions should be reported in the
comments/remarks section of the CCD. Examples of what to look for are as follows: