05000282/FIN-2011003-12
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Finding | |
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| Title | Licensee-Identified Violation |
| Description | Technical Specification 5.4.1 states that written procedures shall be established, implemented, and maintained covering the applicable procedures recommended in Regulatory Guide 1.33, Revision 2, Appendix A, February 1978. Section 9 of Regulatory Guide 1.33, Revision 2, Appendix A, February 1978, requires that maintenance that affects the performance of safety-related equipment be properly preplanned and performed in accordance with written procedures, documented instructions, or drawings appropriate to the circumstances. Contrary to the above, on February 19, 2011, the licensee failed to properly pre-plan and perform maintenance on the Unit 2 shield building doors with written procedures, documented instructions, or drawings appropriate to the circumstances. Specifically, WO 408666 failed to include information that the performance of maintenance on the Unit 2 shield building doors would render the Unit 2 shield building inoperable. The licensee reported this event to the NRC on April 20, 2011, as required by 10 CFR Part 50.73(a)(2)(v). The licensee also initiated CAP 1271750 to document this issue. Immediate corrective actions included closing the doors to restore shield building operability, revising procedures to clearly state that the opening of both doors can only be done in Mode 5 or 6, and the development of a plant impact statement checklist to aid in determining the impact of maintenance activities on plant operation. The inspectors determined that this finding impacted the Barrier Integrity Cornerstone. The inspectors performed a Phase 1 SDP screening of this issue and determined that it was of very low safety significance (Green) because it did not represent a degradation of the radiological barrier function provided for the control room, the auxiliary building, or the spent fuel pool; did not represent a degradation of the barrier function of the control room against smoke or a toxic atmosphere; did not represent an actual open pathway in the physical integrity of the reactor containment; and did not involve an actual reduction in the function of the hydrogen ignitors. |
| Site: | Prairie Island  |
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| Report | IR 05000282/2011003 Section 4OA7 |
| Date counted | Jun 30, 2011 (2011Q2) |
| Type: | NCV: Green |
| cornerstone | Mitigating Systems |
| Identified by: | Licensee-identified |
| Inspection Procedure: | |
| Inspectors (proximate) | J Jandovitz M Mitchell C Brown M Phalen K Stoedter D Betancourt J Corujo-Sandin E Sanchez N Feliz-Adorno S Lynch S Shah |
| INPO aspect | |
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Finding - Prairie Island - IR 05000282/2011003 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Prairie Island) @ 2011Q2
Self-Identified List (Prairie Island)
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