ENS 54330

From kanterella

Revision as of 07:30, 25 November 2019 by StriderTol (talk | contribs) (Created page by program invented by StriderTol)

(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)

Jump to navigation Jump to search

v t e ENS Event
16:10 Oct 15, 2019
Title	High Pressure Coolant Injection (Hpci) System Inoperable
Event Description	On 10/15/19 at 1210 [EDT] Peach Bottom discovered a degraded spring hanger (23DBN-H39) associated with Unit 3 High Pressure Coolant Injection (HPCI) system. The hanger is located downstream of MO-3-23-14 HPCI Steam Supply Valve before the HO-3-23-4513 Turbine Stop Valve. A review of the piping and support design analysis were performed and concluded the U3 HPCI turbine inlet nozzle would potentially exceed its allowable stresses. Following Engineering review, U3 HPCI was declared inoperable at 1743 [EDT]. This report is being submitted pursuant to 10 CFR 50.72(b)(3)(v)(D). The NRC Resident Inspector has been notified. * * RETRACTION ON 11/22/19 AT 0851 EST FROM DAN DULLUM TO BETHANY CECERE * * * Additional evaluation by Engineering personnel determined that the degraded spring hanger would have no adverse effect on the subject piping or HPCI turbine nozzle structural integrity. Pressure, deadweight, and seismic stresses were within allowable limits. Non-destructive examination (NDE) of the piping and nozzle was performed to identify any signs of cracking, yielding, or defects. NDE results were satisfactory. The degraded spring hanger did not effect the Unit 3 HPCI system operability and this call is being retracted. The NRC Resident Inspector has been notified. Notified R1DO (Cahill).

ENS 54330 +/- *RETRACTED*
Where
Peach Bottom Pennsylvania (NRC Region 1)
Reporting

10 CFR 50.72(b)(3)(v)(D), Loss of Safety Function - Mitigate the Consequences of an Accident
Time - Person (Reporting Time:+3.07 h0.128 days <br />0.0183 weeks <br />0.00421 months <br />)
Opened:	Jeremy Peters 19:14 Oct 15, 2019
NRC Officer:	Brian Lin
Last Updated:	Nov 22, 2019
54330 - NRC Website Loading map... {"minzoom":false,"maxzoom":false,"mappingservice":"leaflet","width":"350px","height":"250px","centre":false,"title":"","label":"","icon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"zoom":6,"defzoom":14,"layers":["OpenStreetMap"],"image layers":[],"overlays":[],"resizable":false,"fullscreen":false,"scrollwheelzoom":true,"cluster":false,"clustermaxzoom":20,"clusterzoomonclick":true,"clustermaxradius":80,"clusterspiderfy":true,"geojson":"","clicktarget":"","imageLayers":[],"locations":[{"text":"\u003Cb\u003E\u003Cdiv class=\"mw-parser-output\"\u003E\u003Cp\u003E\u003Ca class=\"mw-selflink selflink\"\u003EENS 54330\u003C/a\u003E - \u003Ca href=\"/Peach_Bottom\" title=\"Peach Bottom\"\u003EPeach Bottom\u003C/a\u003E\n\u003C/p\u003E\u003C/div\u003E\u003C/b\u003E\u003Cdiv class=\"mw-parser-output\"\u003E\u003Cp\u003EHigh Pressure Coolant Injection (Hpci) System Inoperable\n\u003C/p\u003E\u003C/div\u003E","title":"ENS 54330 - Peach Bottom\n","link":"","lat":39.75920833333333,"lon":-76.26879444444444,"icon":"/w/images/b/be/Constellation_icon.png"}],"imageoverlays":null}
v • d • e

v t e Emergency Notification System
Peach Bottom with 10 CFR 50.72(b)(3)(v)(D), Loss of Safety Function - Mitigate the Consequences of an Accident
WEEKMONTHYEAR2021-04-30T03:54:00 [Table view]
[ENS list for Peach Bottom]

Retrieved from "https://kanterella.com/w/index.php?title=ENS_54330&oldid=2205442"