Finding | |
|---|---|
| Title | Licensee-Identified Violation |
| Description | The following violation of very low significance (Green) was identified by the licensee and is a violation of NRC requirements that meets the criteria of Section VI of the NRC Enforcement Policy, NUREG-1600, for being dispositioned as an NCV. TS 3.3.2 requires that the ESFAS instrumentation for each function in Table 3.3.2-1 shall be operable. Table 3.3.2-1 function 1b, required two trains of SI automatic actuation logic and actuation relays be operable in Modes 3 and 4. Table 3.3.2-1 Function 5a, required two trains of turbine trip and feedwater isolation automatic actuation logic and actuation relays be operable in Mode 3. Contrary to this, on March 20 and 21, 2008, two trains of SI automatic actuation logic were not operable, in that, both trains were blocked. Also on March 21, two trains of SI and feedwater isolation automatic actuation logic were not operable, in that, both trains were blocked. This finding is more than minor because it affected the Mitigating Systems Cornerstone objective and adversely affected the cornerstones equipment performance attribute for availability and reliability. A phase 2 SDP evaluation determined that the finding was of very low safety significance |
| Site: | Watts Bar  |
|---|---|
| Report | IR 05000390/2008003 Section 4OA7 |
| Date counted | Jun 30, 2008 (2008Q2) |
| Type: | NCV: Green |
| cornerstone | Mitigating Systems |
| Identified by: | Licensee-identified |
| Inspection Procedure: | |
| Inspectors (proximate) | R Monk E Guthrie R Chou M Pribish L Moore L Suggs |
| INPO aspect | |
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Finding - Watts Bar - IR 05000390/2008003 | |||||||||||||||||||||||||||||||
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Finding List (Watts Bar) @ 2008Q2
Self-Identified List (Watts Bar)
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