05000315/FIN-2010002-05
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Finding | |
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| Title | Licensee-Identified Violation |
| Description | Technical Specification 5.4.1 requires that written procedures be established, implemented, and maintained for activities provided in Regulatory Guide 1.33, Revision 2, Appendix A, dated February 1978. Procedures specified in Regulatory Guide 1.33 include radiation protection procedures for access control into radiological areas which are provided by licensee procedure PMP-6010- RPP-003, High, Locked High and Very High Radiation Areas Access, Revision 18. Section 3.7 of that procedure requires that high radiation areas be locked unless being accessed by workers and the workers verify the gate/door/ladder locks were locked upon exiting the area. Contrary to this requirement, between June 10 & 11, 2007, two high radiation areas were not locked and secured on the Unit 1 and Unit 2 letdown heat exchanger rooms. The problem was discovered by RP staff on June 11, 2007, during routine surveillance walkdowns. The licensees follow-up investigation found that an RP technician performing a routine survey of the rooms on June 10, 2007, failed to physically challenge the gates when the individual exited the areas. The investigation found that no other personnel entered either room after the RP technician completed the surveys. The licensee concluded that the RP technician who left the gates unlocked relied on the automatic closure mechanism to secure the gates behind him. One gate was not fully latched and the other was partially blocked by a chain attached to the gate. The issue was documented in the licensees corrective action program as AR 00814626. Corrective actions included enhanced oversight of high radiation area egress controls by RP supervision and improved postings on doors/gates. The finding was determined to be of very low safety significance because it was not an ALARA planning issue, there was no overexposure nor potential for an overexposure, and the licensees ability to assess worker dose was not compromised |
| Site: | Cook  |
|---|---|
| Report | IR 05000315/2010002 Section 4OA7 |
| Date counted | Mar 31, 2010 (2010Q1) |
| Type: | NCV: Green |
| cornerstone | Mitigating Systems |
| Identified by: | Licensee-identified |
| Inspection Procedure: | |
| Inspectors (proximate) | M Mitchell J Lennartz T Go P Laflamme J Cameron A Shaikh T Briley M Holmberg C Zoia D Mcneil J Jandovitz |
| INPO aspect | |
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Finding - Cook - IR 05000315/2010002 | |||||||||||||||||||||||||||||||||||||||||||
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Finding List (Cook) @ 2010Q1
Self-Identified List (Cook)
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