ENS 42973: 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 = 11/07/2006 16:07 CST | | event date = 11/07/2006 16:07 CST | ||
| last update date = 11/08/2006 | | last update date = 11/08/2006 | ||
| title = Failure | | title = Failure of Process Gas Leak Detection System | ||
| event text = At 1607 on 11/7/2006, the Plant Shift Superintendent (PSS) was notified of a failure of the C-333 Unit 6 Cell 3 process gas leak detection (PGLD) system. C-333 operators were alerted to the Unit 6 Cell 3 PGLD failure by the receipt of an Area Control Room alarm. The operators responded to the Unit 6 Cell 3 cell panel and discovered that the PGLD system was inoperable. C-333 Unit 6 Cell 3 and associated piping were operating above atmospheric pressure (Cascade Mode 2) at the time of the PGLD failure. The operators initiated a continuous smoke watch of the area with lost PGLD coverage until the associated equipment and piping pressure was reduced below atmospheric pressure in accordance with TSR LCO 2.4.4.1. The PGLD system is required per TSR 2.4.4.1 to be operable when a cascade cell and associated piping is above atmospheric pressure (Cascade Mode 2). | | event text = At 1607 on 11/7/2006, the Plant Shift Superintendent (PSS) was notified of a failure of the C-333 Unit 6 Cell 3 process gas leak detection (PGLD) system. C-333 operators were alerted to the Unit 6 Cell 3 PGLD failure by the receipt of an Area Control Room alarm. The operators responded to the Unit 6 Cell 3 cell panel and discovered that the PGLD system was inoperable. C-333 Unit 6 Cell 3 and associated piping were operating above atmospheric pressure (Cascade Mode 2) at the time of the PGLD failure. The operators initiated a continuous smoke watch of the area with lost PGLD coverage until the associated equipment and piping pressure was reduced below atmospheric pressure in accordance with TSR LCO 2.4.4.1. The PGLD system is required per TSR 2.4.4.1 to be operable when a cascade cell and associated piping is above atmospheric pressure (Cascade Mode 2). | ||
This event is reportable as a 24 hour event in accordance with 10CFR 76.120(c)(2)(i). This is an event in which equipment is disabled or fails to function as designed when: a.) the equipment is required by a TSR to prevent releases, prevent exposures to radiation and radioactive materials exceeding specified limits, mitigate the consequences of an accident, or restore this facility to a pre-established safe condition after an accident; b.) the equipment is required by a TSR to be available and operable and either should have been operating or should have operated on demand, and c.) no redundant equipment is available and operable to perform the required safety function. | This event is reportable as a 24 hour event in accordance with 10CFR 76.120(c)(2)(i). This is an event in which equipment is disabled or fails to function as designed when: a.) the equipment is required by a TSR to prevent releases, prevent exposures to radiation and radioactive materials exceeding specified limits, mitigate the consequences of an accident, or restore this facility to a pre-established safe condition after an accident; b.) the equipment is required by a TSR to be available and operable and either should have been operating or should have operated on demand, and c.) no redundant equipment is available and operable to perform the required safety function. | ||
Revision as of 22:17, 1 March 2018
| Where | |
|---|---|
| Paducah Gaseous Diffusion Plant Paducah, Kentucky (NRC Region 2) | |
| License number: | Gdp-1 |
| Reporting | |
| 10 CFR 76.120(c)(2) | |
| Time - Person (Reporting Time:+12.82 h0.534 days <br />0.0763 weeks <br />0.0176 months <br />) | |
| Opened: | Matt Maurer 10:56 Nov 8, 2006 |
| NRC Officer: | Mike Ripley |
| Last Updated: | Nov 8, 2006 |
| 42973 - NRC Website | |