Finding | |
|---|---|
| Title | VIOLATION OF 10 CFR 50.73(A)(2)(VII), Report Common Cause of Failures of Independent Channels |
| Description | The inspectors identified a non-cited violation of 10 CFR 50.73(a)(2)(vii), because PPL did not submit a Licensee Event Report (LER) for the common cause failure and consequent inoperability of two or more SRVs in 2005, 2008, and 2009. The inspectors determined that SRV failures of set pressure testing per the 1998 ASME O&M Code were attributed to setpoint drift resulting in two or more independent channels (two or more SRVs) to become inoperable. As an immediate corrective action, the licensee entered this NCV into their corrective action process (CR 1161398). This finding was evaluated using the traditional enforcement process because the failure to accurately report events has the potential to impact or impede the regulatory process. The finding was determined to be a Severity Level IV violation based on Supplement I, Example D.4 of the NRC Enforcement Policy. However, because this violation was of very low safety significance, was not repetitive or willful, and was entered into PPLs corrective action program, this violation is being treated as an NCV consistent with the NRC Enforcement Policy. This finding is related to the Problem Identification and Resolution cross-cutting area (Operating Experience (OE)) because PPL did not thoroughly incorporate Information Notice (IN) 2006-24 to include SRV set point drift as a reportable common cause failure method. (P.2(b)) |
| Site: | Susquehanna  |
|---|---|
| Report | IR 05000387/2009003 Section 1R20 |
| Date counted | Jun 30, 2009 (2009Q2) |
| Type: | TEV: Severity level IV |
| cornerstone | Initiating Events |
| Identified by: | NRC identified |
| Inspection Procedure: | IP 71111.2 |
| Inspectors (proximate) | R Fuhrmeister J Furia A Rosebrook S Barr P Finney D Orr F Jaxheimer P Krohn |
| CCA | P.5, Operating Experience |
| INPO aspect | CL.1 |
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Finding - Susquehanna - IR 05000387/2009003 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Susquehanna) @ 2009Q2
Self-Identified List (Susquehanna)
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