ENS 43622: Difference between revisions
Jump to navigation
Jump to search
StriderTol (talk | contribs) (Created page by program invented by Mark Hawes) |
StriderTol (talk | contribs) (Created page by program invented by StriderTol) |
||
| Line 16: | Line 16: | ||
| event date = 09/06/2007 23:22 CDT | | event date = 09/06/2007 23:22 CDT | ||
| last update date = 09/13/2007 | | last update date = 09/13/2007 | ||
| title = Leakage | | title = Leakage from Reactor Coolant System >10 Gpm | ||
| event text = A relief valve (BG 8117) in the letdown system opened and released about 650 - 700 gallons of water from the reactor coolant system into the pressurizer relief tank. The rate of release from the letdown was 119 gpm. It was estimated that the pressurizer level lowered about 2-3%. The letdown system was isolated by closing the letdown orifice block isolation valve. Licensee is investigating the reason for the spurious lifting of the relief valve. Due to leakage from the reactor coolant system, the licensee entered EAL 4R. Plant is stable and operating at full power. | | event text = A relief valve (BG 8117) in the letdown system opened and released about 650 - 700 gallons of water from the reactor coolant system into the pressurizer relief tank. The rate of release from the letdown was 119 gpm. It was estimated that the pressurizer level lowered about 2-3%. The letdown system was isolated by closing the letdown orifice block isolation valve. Licensee is investigating the reason for the spurious lifting of the relief valve. Due to leakage from the reactor coolant system, the licensee entered EAL 4R. Plant is stable and operating at full power. | ||
The licensee notified the NRC Resident Inspector. | The licensee notified the NRC Resident Inspector. | ||
Latest revision as of 22:15, 1 March 2018
| Where | |
|---|---|
Callaway  Missouri (NRC Region 4) | |
| Reporting | |
| Emergency class: | Unusual Event |
| 10 CFR 50.72(a) (1) (i), Emergency Class Declaration | |
| Time - Person (Reporting Time:+-3.5 h-0.146 days <br />-0.0208 weeks <br />-0.00479 months <br />) | |
| Opened: | Richard Thompson 00:52 Sep 7, 2007 |
| NRC Officer: | John Knoke |
| Last Updated: | Sep 13, 2007 |
| 43622 - NRC Website
| |