Finding | |
|---|---|
| Title | Operation of Letdown System Leads to Voiding and Subsequent Relief Valve Lift |
| Description | The inspectors identified a finding of very low safety significanceand associated Non-Cited Violation of Technical Specification 5.4, Procedures, when the licensee failed to maintain a procedure for operating the letdown system. As a result, a water-hammer occurred which caused a safety-related relief valve to lift, which discharged reactor coolant to the Pressurizer Relief Tank until letdown was isolated |
| Site: | Cook  |
|---|---|
| Report | IR 05000315/2018001 Section 1R20 |
| Date counted | Mar 31, 2018 (2018Q1) |
| Type: | NCV: Green |
| cornerstone | Initiating Events |
| Identified by: | NRC identified |
| Inspection Procedure: | IP 71111.2 |
| Inspectors (proximate) | J Ellegood T Taylor R Baker M Holmberg T Go G Roach L Smith K Riemer |
| Violation of: | Technical Specification - Procedures |
| INPO aspect | |
| ' | |
Finding - Cook - IR 05000315/2018001 | |||||||||||||||||||||||||||||||||||||||
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Finding List (Cook) @ 2018Q1
Self-Identified List (Cook)
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