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5.4
5.4.1
5.4.2
5.4.3
Revision 1
Scnternher 1.990
MAINTENANCE AND SURVEILLANCE OF SC-3 SSCS
Requirements for Maintenance and Surveiliance of SC-3 SSCs
A program shall be developed, implemented and maintained to provide the required
safety functions of SC-3 SSCs.
APPLICABILITY: This control applies to the SSCs in Table 2 which are the SC-3 SSCs
identified in the safety analyses for DEFENSE-IN-DEPTH and worker safety, and the
SC-3 SSCs required to support SC-1/2 SSCs.
CREDITED PROGRAMMATIC ELEMENTS
The program shall include the following CREDITED PROGRAMMATIC ELEMENTS
a. Safety functions provided by SC-3 SSCs are maintained as stated in Table 2;
b. The functionality of in-service SC-3 SSCs is periodically verified;
c. SC-3 SSCs are inspected and/or acceptance tested following repair;
d. Changes made to SC-3 SSCs, and associated engineering documentation and
operating instructions, are controlled; and
. e. Applicable corrective actions resulting from periodic inspection findings
(e.g., Fire Protection) are implemented commensurate with their safetv
significance.
Specific Controls or Restrictions
The following action statements are implemented when the associated SC-3 SSC safety
hctions are not provided.
NOTE: Surveillance frequency is as specified in Section 1.7 and each surveillance shall
be performed within 1.25 of the specified frequency. Use of the 25% grace period does
not extend the due date for the next surveillance period.
APPLICABILITY: To SC-3 SSCs at all times in the BUILDING 991 COMPLEX
A- 100 Building 991 Complex FSM 1
Appendix A !