05000289/FIN-2008004-01
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Finding | |
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| Title | Deficient Implementation of Fire Barrier Seal Inspection Procedure |
| Description | The inspectors identified an NCV of Technical Specification (TS) 6.8.1.e, which requires that written procedures covering the Fire Protection program be properly implemented. Specifically, fire seal inspections performed in August and October 2007 did not properly identify two degraded seismic floor penetration fire seals and initiate corrective measures including an expanded inspection scope as required by procedure 1303-12.9, Fire Barrier Seal Inspection. Consequently, numerous fire seals associated with plant areas containing safety related accident mitigation equipment remained degraded until independently identified by the NRC inspectors and licensee staff in June and July 2008. Upon discovery of the degraded fire seals, operators declared the fire seals inoperable, established appropriate compensatory measures, entered the issue into the corrective action program (Issue Reports 808410, 792382, 791987 and 793088), and implemented seal repairs. This finding adversely affected the reliability of equipment required to achieve and maintain a safe shutdown condition following a severe fire, because the degraded fire seals adversely affected the confinement defense-in-depth element of fire protection. The finding is greater than minor because it is associated with the protection against external factors attribute of the Mitigating Systems cornerstone. Because the cracks, foam separation, and holes through the seals were small (1/8 to 3/8 inch width and up to full seal length), the finding was determined to have very low safety significance. The finding has a cross-cutting aspect in the area of human performance because AmerGen personnel did not properly implement the fire barrier seal inspection procedure during inspections completed in late 2007, such that degraded fire seals were promptly identified and corrected H.4(b). (Section 1R15) |
| Site: | Three Mile Island  |
|---|---|
| Report | IR 05000289/2008004 Section 1R15 |
| Date counted | Sep 30, 2008 (2008Q3) |
| Type: | NCV: Green |
| cornerstone | Mitigating Systems |
| Identified by: | NRC identified |
| Inspection Procedure: | IP 71111.15 |
| Inspectors (proximate) | D Werkheiser S Barr T Burns R Nimitz J Brand D Kern D Everhart |
| CCA | H.8, Procedure Adherence |
| INPO aspect | WP.4 |
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Finding - Three Mile Island - IR 05000289/2008004 | |||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Three Mile Island) @ 2008Q3
Self-Identified List (Three Mile Island)
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