ENS 50998
ENS Event | |
|---|---|
21:07 Aug 7, 2014 | |
| Title | This Is a Continuation of En #50351 |
| Event Description |
During an expanded scope inspection, deficiencies in the following areas were observed that caused the affected barriers to be considered nonfunctional: - A gap 1/4" wide, 1" tall, and 6" deep was found at penetration 1Z43H594D on the west wall of the U1 East Cableway (separating Fire Area 1104 and Fire Area 1020) - Near penetration 1Z43J837D, and approximately 12" south and above 1Z43H837D, gaps were observed in the mortar joint between CMU on the west wall of the U1 East Cableway (separating Fire Area 1104 and Fire Area 1020) - A triangular gap 1" wide, 1" tall and 6" deep was found at penetration 1Z43H592D on the west wall of the U1 East Cableway (separating Fire Area 1104 and Fire Area 1020) - A gap 4" tall and 3" wide was found behind Turn Box TB1-1272 which covers penetrations 1Z43H590D, 1Z43H589D, 1Z43H588, and 1Z43H587D on the west wall of the U1 East Cableway (separating Fire Area 1104 and Fire Area 1020) - At the architectural joint between the vertical wall to the horizontal floor/ceiling assembly above door 1C-22, above and to the south of 1Z43H1105D, a gap was observed approximately 1/4" tall, 3" wide, and 6" deep on the west wall of the U1 East Cableway Foyer (separating Fire Area 1105 and Fire Area 0014K) - Gap between the grout and the conduit of penetration 1Z43H778D approximately 1/4" tall x 1.5" wide x 6" deep on the east wall of the Unit 1 130' Elevation Control Building Working Floor Hallway (separating Fire Area 0014K and Fire Area 1105) The nonconforming conditions observed for the affected fire penetrations and fire barriers were identified as affecting both safe shutdown paths for Unit 2. Compensatory measures were already in place in accordance with the plant's Fire Hazard Analysis (FHA) as a result of previous conditions involving degraded barriers in the same fire areas and will remain in place until the fire barriers are repaired. The presence of the compensatory measures in addition to portable fire protection equipment located in adjacent areas ensure the safe shutdown paths are preserved until the degraded conditions are repaired. CR 10058276; CR 10058278 The following deficiencies were also observed causing the affected penetrations to be considered nonfunctional: - A gap 1/4" wide, 1" tall, and 6" deep was located at penetration 1Z43H532D on the west wall of the U1 East Cableway (separating Fire Area 1104 and Fire Area 0014M) - A gap 1/8" wide, 1" tall and 6" deep was located at penetration 1Z43H780D on the west wall of the U1 East Cableway (separating Fire Area 1104 and Fire 0014M) - A gap 1/2" wide, 1" tall, and 6" deep was located at penetration 1Z43H781D on the west wall of the U1 East Cableway (separating Fire Area 1104 and Fire 0014M). A 1/4" x 1/2" defect was also identified at penetration 1Z43H781D on the east wall of the Men's Restroom in the Control Building (separating Fire Area 0014M and Fire Area 1104) The nonconforming conditions observed for the affected penetrations were identified as affecting both safe shutdown paths for Unit 1 and Unit 2. Compensatory measures were already in place in accordance with the plant's Fire Hazard Analysis (FHA) as a result of previous conditions involving degraded barriers in the same fire areas and will remain in place until the fire barriers are repaired. The presence of compensatory measures in addition to portable fire protection equipment located in adjacent areas ensures the safe shutdown paths are preserved until degraded conditions are repaired. CR 10058277 The expanded scope inspection activity is continuing and this and any subsequent similar condition(s) that meets the reporting requirements will be included in an ENS Update Report as required and will be documented in a revised LER at the end of the inspection activity. The licensee has notified the NRC Resident Inspector. Notified R2DO (Blamey).
During an expanded scope inspection, deficiencies in the following areas were observed that caused the affected barriers to be considered nonfunctional: - A gap 1/4" wide, 1" tall and 7" deep was found at penetration 1Z43H1138D on the east wall of the U1 RPS MG Set Room (separating Fire Area 1013 and Fire Area 0040). No seal material was seen between the sleeve and the cinderblock on the north side of penetration. - A void 1" tall, 1" wide, and 7" deep was found in the south upper corner under a concrete beam at column line T12 above penetration 1Z43H941D on the east wall of the U1 RPS MG Set Room (separating Fire Area 1013 and Fire Area 0040). - At penetration 1Z43H1139D, it appears that combustible neoprene insulation is used around the pipe within the plane of the west wall of the Vertical Cable Chase Room (separating Fire Area 0040 and Fire Area 1013). Combustible materials would not be part of a rated pen seal. - A gap 1" wide, 1" tall and 7" deep was observed at penetration 1Z43H1138D on the west wall of the Vertical Cable Chase Room (separating Fire Area 0040 and Fire Area 1013). The nonconforming conditions observed for the affected fire penetrations and fire barriers were identified as affecting both safe shutdown paths for Unit 1. Compensatory measures were already in place in accordance with the plant's Fire Hazard Analysis (FHA) as a result of previous conditions involving degraded barriers in the same fire areas and will remain in place until the fire barriers are repaired. The presence of the compensatory measures in addition to portable fire protection equipment located in adjacent areas ensures the safe shutdown paths are preserved until the degraded conditions are repaired. The expanded scope inspection activity is continuing, and this and any subsequent similar condition(s) that meets the reporting requirements will be included in an ENS Update Report as required and will be documented in a revised LER at the end of the inspection activity. CR 10060228 The licensee will notify the NRC Resident Inspector. Notified R2DO (Blamey).
During an expanded scope inspection, deficiencies in the following areas were observed that caused the affected barriers to be considered nonfunctional: -An opening in the grout 1/4" wide, 1/2" tall and over 7" deep was found between the wall and the outside sleeve for penetration 2Z43H028D on the west wall of the U2 Transformer Room (separating Fire Area 2019 and Fire Area 2016). -A 1/4" diameter hole in the grout approximately 2.5" deep was found above conduit 2MI2128 on the west wall of the U2 Transformer Room (separating Fire Area 2019 and Fire Area 2016). The nonconforming conditions observed for the affected penetration and fire barrier were identified as affecting both safe shutdown paths for Unit 1 and Unit 2. Compensatory measures were already in place in accordance with the plant's Fire Hazard Analysis (FHA) as a result of previous conditions involving degraded barriers in the same fire areas and will remain in place until the fire barriers are repaired. The presence of the compensatory measures in addition to portable fire protection equipment located in adjacent areas ensures the safe shutdown paths are preserved until the degraded conditions are repaired. The expanded scope inspection activity is continuing, and this and any subsequent similar condition(s) that meets the reporting requirements will be included in an ENS Update Report as required and will be documented in a revised LER at the end of the inspection activity. CR 10061830 The licensee notified the NRC Resident Inspector. Notified R2DO (Blamey).
During an expanded scope inspection, deficiencies in the following areas were observed that caused the affected barriers in the Unit 2 Control Building 130' elevation to be considered nonfunctional and represented degraded conditions of penetrations through the wall separating the Unit 2 Switchgear Access Hallway - Fire Area 2014, from the U2 West 600 V Switchgear Room - Fire Area 2016. The following conditions were located on the south wall of the Unit 2 Switchgear Access Hallway (Fire Area 2014). 1. An opening between the conduit and the wall 1/4" wide, 2" long and probed to be at least 2 1/2" deep was identified for penetration 2Z43H668D. A similar condition exists for this penetration on the opposite side of the wall in Fire Area 2016. 2. An opening between the conduit and the wall 1/4" wide, 1/2" long and probed to be at least 3" deep was identified for penetration 2Z43H667D. A similar condition exists for this penetration on the opposite side of the wall in Fire Area 2016. The following conditions were located on the opposite side of the same wall. This is the north wall of the U2 West 600V Switchgear Room (Fire Area 2016): 3. An opening between the conduit and the wall 1/8" wide, 1" long and probed to be at least 4" deep was identified for penetration 2Z43H668D. 4. An opening between the conduit and the wall 1/8" wide, 1/2" long and probed to be at least 3" deep was identified for penetration 2Z43H667D. 5. An opening between the conduit and the wall 2 1/2" wide, 2 1/2" long and probed to be at least 4" deep was identified around the 2" continuous run conduit located above cable tray penetration 2Z43H031D. 6. An opening between the conduit and the wall 1/4" wide, 3/4" long and probed to be at least 6" deep was identified above a 3/4" continuous run conduit (first of three) located at the ceiling near column line TE. 7. An opening between the conduit and the wall 1/4" wide, 1/2" long and probed to be at least 6" deep was identified above a 3/4" continuous run conduit (second of three) located at the ceiling near column line TE. 8. An opening between the conduit and the wall 1/4" wide, 3/4" long and probed to be at least 5" deep was identified above a 3/4" continuous run conduit (third of three) located at the ceiling near column line TE. The nonconforming conditions observed for the affected penetration and fire barrier were identified as affecting both safe shutdown paths for Unit 2. Compensatory measures were already in place in accordance with the plant's Fire Hazard Analysis (FHA) as a result of previous conditions involving degraded barriers in the same fire areas and will remain in place until the fire barriers are repaired. The presence of the compensatory measures in addition to portable fire protection equipment located in adjacent areas ensures the safe shutdown paths are preserved until the degraded conditions are repaired. The expanded scope inspection activity is continuing, and this and any subsequent similar condition(s) that meets the reporting requirements will be included in an ENS Update Report as required and will be documented in a revised LER at the end of the inspection activity. CR 10062254 The licensee notified the NRC Resident Inspector. Notified R2DO (Ehrhardt).
During an expanded scope inspection, deficiencies in the Unit 2 Control Building 130 foot elevation were observed that caused the affected barriers to be considered nonfunctional and represented degraded conditions of penetrations through the wall separating the Unit 2 West DC Switchgear Room 2A (Fire Area 2018) and the Unit 2 Switchgear Access Hallway (Fire Area 2014). The following conditions were located on the west wall of the Unit 2 Switchgear Access Hallway (Fire Area 2014). 1. An opening between the conduit and the wall 1/4 inch wide, 1 inch long and probed to be greater than 2 inch deep, was identified for penetration 2Z43H673D. 2. There is insufficient masonry material to fill the full depth of the wall above the ductwork that passes through penetration 2Z43H032D. This deficiency affects a small area on the south side of the ductwork and penetrations 2Z43H789D, 2Z43H790D, and 2Z43H791D. 3. An opening between the conduit and the wall 1/4 inch wide, 1 inch long and probed to be 4 inch deep was identified for penetration 2Z43H671D. A similar condition exists for this penetration on the opposite side of the wall (see Item 5 below). The following conditions were located on the east wall of the Unit 2 West DC Switchgear Room 2A (Fire Area 2018). 4. There are openings between the conduits and the wall 1/2 inch wide and 1 inch long for penetrations 2Z43H789D, 2Z43H790D, and 2Z43H791D. These penetrations are affected in Item 2 above. 5. An opening between the conduit and the wall 1 inch wide, 1 inch long and probed to be greater than 6 inch deep, was identified for penetration 2Z43H671D. 6. An opening between the conduit and the wall 1/4 inch wide, 1 inch long and probed to be at least 2 inch deep, was identified for penetration 2Z43H673D. 7. An opening between the conduit and the wall 1/4 inch wide, 1 inch long and probed to be at least 2 1/2 inch deep, was identified for penetration 2Z43H676D. The nonconforming conditions observed for the affected penetrations were identified as affecting both safe shutdown paths for Unit 2. Compensatory measures were already in place in accordance with the plant's Fire Hazard Analysis (FHA) as a result of previous conditions involving degraded barriers in the same fire areas and will remain in place until the fire barriers are repaired. The presence of the compensatory measures in addition to portable fire protection equipment located in adjacent areas ensures the safe shutdown paths are preserved until the degraded conditions are repaired. The expanded scope inspection activity is continuing, and this and any subsequent similar condition(s) that meets the reporting requirements will be included in an ENS Update Report as required and will be documented in a revised LER at the end of the inspection activity. CR10062955 The licensee notified the NRC Resident Inspector. Notified R2DO (Ehrhardt).
During an expanded scope inspection, deficiencies in the Control Building 130' elevation were observed that caused the affected barriers to be considered nonfunctional and represented degraded conditions of the following penetrations through the wall separating the Unit 2 East Cableway (Fire Area 2104) and the Health Physics Hallway and Counting Room (Fire Areas 0014B and 0014G). - Penetration 2Z43H783D terminates open within a foot of the east wall of the Health Physics Counting Room (Fire Area 0014G) - Penetration 2Z43H603D contains no visible seal material and is located on the east wall of the Health Physics Hallway (Fire Area 0014B). The nonconforming conditions observed for the affected penetrations were identified as affecting both safe shutdown paths for Unit 1 and Unit 2. Deficiencies were also observed that caused the affected barriers to be considered nonfunctional and represented degraded condition of the wall separating the Unit 2 East Cableway (Fire Area 2104) from the common East Cableway Foyer (Fire Area 1105). - Gap near penetration 2Z43H170D between a conduit and the concrete masonry unit (CMU) wall located on the south wall of the Unit 2 East Cableway (Fire Area 2104). The nonconforming conditions observed for the affected fire barriers were identified as affecting both safe shutdown paths for Unit 1. Compensatory measures were already in place in accordance with the plant's Fire Hazard Analysis (FHA) as a result of previous conditions involving degraded barriers in the same fire areas but were modified based on the nature of the degradations noted in the condition report and will remain in place until the fire barriers are repaired. The presence of the compensatory measures in addition to portable fire protection equipment located in adjacent areas ensures the safe shutdown paths are preserved until the degraded conditions are repaired. The expanded scope inspection activity is continuing, and this and any subsequent similar condition(s) that meets the reporting requirements will be included in an ENS Update Report as required and will be documented in a revised LER at the end of the inspection activity. CR10063642 Notified R2DO (Ehrhardt).
During an expanded scope inspection, deficiencies in the Control Building 147' elevation were observed that caused the affected barriers to be considered nonfunctional. These deficiencies represented degraded conditions of the following penetrations through the wall separating the Unit 1 CO2 Tank Room (Fire Area 0025) and the Computer Room (Fire Areas 0024B) as well as a discrepancy in the affected wall. - In Fire Area 0024B, a small gap in the foam, approximately 6 [inch] deep was identified in Penetration 1Z43H592F. The adjacent Fire Area is FA 0025. - In Fire Area 0024B, penetration 1Z43H325F was identified with no sealant for the penetration sleeve. The adjacent Fire Area is FA 0025. - In Fire Area 0024B, foam sealant was missing in cable-tray, 1Z43H061F. The adjacent Fire Area is FA 0025 - In Fire Area 0024B, a gap was identified in a concrete masonry unit (CMU) wall joint, directly above 1Z43H062F. The nonconforming conditions observed for the affected fire barriers were identified as affecting both safe shutdown paths for Unit 1 and Unit 2. Compensatory measures were already in place in accordance with the plant's Fire Hazard Analysis (FHA) as a result of previous conditions involving degraded barriers in the same fire areas and will remain in place until the fire barriers are repaired. The presence of the compensatory measures in addition to portable fire protection equipment located in adjacent areas ensures the safe shutdown paths are preserved until the degraded conditions are repaired. The expanded scope inspection activity is continuing, and this and any subsequent similar condition(s) that meets the reporting requirements will be included in an ENS Update Report as required and will be documented in a revised LER at the end of the inspection activity. CR10066678 The licensee has notified the NRC Resident Inspector. Notified the R2DO (Sandal).
During an expanded scope inspection, a deficiency in the Control Building 147 ft. elevation was observed that caused the affected barrier to be considered nonfunctional. This deficiency represented degraded conditions of the following fire barrier separating the Unit 1 CO2 Tank Room (Fire Area 0025) and the Cable Spreading Room (Fire Areas 0024A). - A 1/4 inch x 2 inch x approximately 4 inch deep gap in the east CMU wall of Unit 1 CO2 Tank Room above penetration 1Z43H046F. The nonconforming condition observed for the affected fire barrier was identified as affecting both safe shutdown paths for Unit 1 and Unit 2. Compensatory measures were already in place in accordance with the plant's Fire Hazard Analysis (FHA) as a result of previous conditions involving degraded barriers in the same fire areas and will remain in place until the fire barriers are repaired. The presence of the compensatory measures in addition to portable fire protection equipment located in adjacent areas ensures the safe shutdown paths are preserved until the degraded conditions are repaired. The expanded scope inspection activity is continuing, and this and any subsequent similar condition(s) that meets the reporting requirements will be included in an ENS Update Report as required and will be documented in a revised LER at the end of the inspection activity. CR10066844 The licensee will inform the NRC Resident Inspector. Notified R2DO (Sandal).
During an expanded scope inspection, deficiencies in the Control Building 147 ft. elevation were observed that caused the affected barrier to be considered nonfunctional. These deficiencies represent degraded conditions of the following fire barrier separating the Cable Spreading Room (FA 0024A) and the CO2 Tank Room (FA 0025). - Multiple gaps in the caulk at the top of the ceiling of the west wall of the Cable Spreading Room (separating FA 0024A and FA 0025). The nonconforming condition observed for the affected fire barrier was identified as affecting both safe shutdown paths for Unit 1 and Unit 2. Compensatory measures were already in place in accordance with the plant's Fire Hazard Analysis (FHA) as a result of previous conditions involving degraded barriers in the same fire areas and will remain in place until the fire barriers are repaired. The presence of the compensatory measures in addition to portable fire protection equipment located in adjacent areas ensures the safe shutdown paths are preserved until the degraded conditions are repaired. The expanded scope inspection activity is continuing, and this and any subsequent similar condition(s) that meets the reporting requirements will be included in an ENS Update Report as required and will be documented in a revised LER at the end of the inspection activity. CR 10067163 The licensee will inform the NRC Resident Inspector. Notified R2DO (Sandal).
During an expanded scope inspection activity, multiple fire penetrations on the Control Building El. 130' elevation were identified that resulted in the affected barriers being considered NON-FUNCTIONAL. An issue was identified with the wall separating the Vertical Cable Chase, Fire Area 0040, from the Unit 2 RPS MG Set Room, Fire Area 2013. - A 1/4" wide x 1/2" long x approximately 6" deep gap in the grout of a 2" continuous run conduit, 6" away from 2Z43H581D was identified. - A 1/4" wide x 3" long x approximately 6" deep gap in the grout of penetration 2Z43H581D was identified. - A 1/2" wide x 2" long x approximately 6" deep gap in the grout of penetration 2Z43H580D was identified. The nonconforming condition observed for the affected fire barrier was identified as affecting both safe shutdown paths for Unit 2. Compensatory measures were already in place in accordance with the plant's Fire Hazard Analysis (FHA) as a result of previous conditions involving degraded barriers in the same fire areas and will remain in place until the fire barriers are repaired. The presence of the compensatory measures in addition to portable fire protection equipment located in adjacent areas ensures the safe shutdown paths are preserved until the degraded conditions are repaired. The expanded scope inspection activity is continuing, and this and any subsequent similar condition(s) that meets the reporting requirements will be included in an ENS Update Report as required and will be documented in a revised LER at the end of the inspection activity. CR 10068138 The NRC Resident Inspector has been notified. Notified R2DO (Bonser).
During an expanded scope inspection activity, a fire barrier on the Control Building El. 164' elevation was identified as being NON-FUNCTIONAL as follows; - A discrepancy was identified with the fire barrier separating the Unit 1 Turbine Building Main Floor Area, Fire Area 0101A from the Main Control Room, Fire Area 0024C. The condition consists of a small gap 1/4" wide, 3" long and probed to be greater than 6" deep between the wall and conduit at penetration 1Z43H605J on the Turbine Building side of the wall. The nonconforming condition observed for the affected fire barrier was identified as affecting both safe shutdown paths for Units 1 and 2. Compensatory measures were already in place in accordance with the plant's Fire Hazard Analysis (FHA) as a result of previous conditions involving degraded barriers in the same fire areas and will remain in place until the fire barriers are repaired. The presence of the compensatory measures in addition to portable fire protection equipment located in adjacent areas ensures the safe shutdown paths are preserved until the degraded conditions are repaired. The expanded scope inspection activity is continuing, and this and any subsequent similar condition(s) that meets the reporting requirements will be included in an ENS Update Report as required and will be documented in a revised LER at the end of the inspection activity. CR 10068842 The NRC Resident Inspector has been notified. Notified R2DO (Bonser).
During an expanded scope inspection, deficiencies in the Control Building 164' elevation were observed that caused the affected barrier to be considered nonfunctional: - A 1/4 inch x 1/2 inch x approximately 6 inch deep gap in the grout of the annulus of penetration 1Z43H602J was identified in the east wall of the Main Control Room (separating Fire Areas 0024C and 0101A). - A 1/4 inch wide x 8 inch long vertical crack, approximately 6 inch deep was identified in the CMU below penetration 1Z43H602J was identified in the east wall of the Main Control Room (separating Fire Areas 0024C and 0101A). - Three abandoned anchor holes, 1/2 inch in diameter and approximately 4 inch deep, were identified below penetration 1Z43H604J in the east wall of the Main Control Room (separating Fire Areas 0024C and 0101A). - A 1 inch diameter abandoned anchor hole, approximately 6 inch deep, was identified directly above a 1/4 inch pipe penetration in the east wall of the Main Control Room (separating Fire Areas 0024C and 0101A). - A 1/2 inch to 3/4 inch gap exists between the top of each of the 3 concrete block (CMU) walls enclosing the HVAC chase and the underside of the floor/ceiling assembly separating the Main Control Room (Fire Area 0024C) and the HVAC Room Chase (Fire Area 0014L). - A 1/2 inch diameter hole exists in the CMU at the upper right corner of penetration 1Z43H1184J separating the Main Control Room (Fire Area 0024C) and the HVAC Room Chase (Fire Area 0014L). The nonconforming condition observed for the affected fire barrier was identified as affecting both safe shutdown paths for Units 1 and 2. Compensatory measures were already in place in accordance with the plant's Fire Hazard Analysis (FHA) as a result of previous conditions involving degraded barriers in the same fire areas and will remain in place until the fire barriers are repaired. The presence of the compensatory measures in addition to portable fire protection equipment located in adjacent areas ensures the safe shutdown paths are preserved until the degraded conditions are repaired. The expanded scope inspection activity is continuing, and this and any subsequent similar condition(s) that meets the reporting requirements will be included in an ENS Update Report as required and will be documented in a revised LER at the end of the inspection activity. CR 10069898; CR 10069995 The licensee will notify NRC Resident Inspector. Notified the R2DO (Bonser).
During an expanded scope inspection for penetration seals, the following discrepancies were identified with the wall separating the Unit 1 Working Floor, Fire Area 0001, from the Unit 1 AC Inverter Room, Fire Area 1008 that caused the affected barriers to be considered nonfunctional: A 1/4 inch x 1 inch x approximately 2 inch deep gap in the grout of the annulus of penetration 1Z43H553C. A 1/4 inch x 1 inch x approximately 2 inch deep gap in the grout of the annulus of penetration 1Z43H546C. A 1/8 inch wide x 1/2 inch tall x approximately 6 inch deep gap in the foam block out, below penetration 1Z43H546C. A 3 inch x 3 inch x 10 inch deep gap in the grout around a 2-1/2 inch continuous run conduit. A 1/4 inch x 1 inch x 10 inch deep gap in the grout around 1-1/2 inch continuous run and 1-1/4 inch continuous run conduits. 2 inch deep gaps in the grout around 1-1/2 inch and 2-1/2 inch continuous run conduits. A 1/4 inch hole x 1 inch deep gap in the grout around penetration 1Z43H060C. A 1/4 inch x 1/4 inch x 2 inch deep gap around the annulus of a 1-1/4 inch continuous run and 2 inch continuous run conduits. The nonconforming condition observed for the affected fire barrier was identified as affecting both safe shutdown paths for Unit 1. Compensatory measures were already in place in accordance with the plant's Fire Hazard Analysis (FHA) as a result of previous conditions involving degraded barriers in the same fire areas and will remain in place until the fire barriers are repaired. The presence of the compensatory measures in addition to portable fire protection equipment located in adjacent areas ensures the safe shutdown paths are preserved until the degraded conditions are repaired. The expanded scope inspection activity is continuing, and this and any subsequent similar condition(s) that meets the reporting requirements will be included in an ENS Update Report as required and will be documented in a revised LER at the end of the inspection activity. CR 10070439 The licensee notified the NRC Resident Inspector. Notified the R2DO (Bonser).
During an expanded scope inspection, the following discrepancies were identified in the Unit 1 Control Building 130[foot] elevation that caused the affected fire barrier to be considered nonfunctional: - Six 3[inch] x 3[inch] holes in the wall of the Men's Rest Room (separating Fire Areas 0014M and 1104). The nonconforming conditions observed for the affected barrier were identified as affecting both safe shutdown paths for Unit 1 and Unit 2. Deficiencies were also observed in the Diesel Generator Building 130[foot] elevation that caused the affected fire barrier to be considered nonfunctional: - Through-wall gap around the conduit that passes through penetration 2Y43H511D on the south wall of the U2 Diesel Generator Switchgear Room 2F (separating Fire Areas 2408 and 2409). The nonconforming condition observed for the affected fire barrier was identified as affecting both safe shutdown paths for Unit 2. Compensatory measures were already in place in accordance with the plant's Fire Hazard Analysis (FHA) as a result of previous conditions involving degraded barriers in the same fire areas and will remain in place until the fire barriers are repaired. The presence of the compensatory measures in addition to portable fire protection equipment located in adjacent areas ensures the safe shutdown paths are preserved until the degraded conditions are repaired. The expanded scope inspection activity is continuing, and this and any subsequent similar condition(s) that meets the reporting requirements will be included in an ENS Update Report as required and will be documented in a revised LER at the end of the inspection activity. CR10073041; CR10073187 The licensee notified the NRC Resident Inspector. Notified the R2DO (Ernestes). |
| Where | |
|---|---|
Hatch  Georgia (NRC Region 2) | |
| Reporting | |
| 10 CFR 50.72(b)(3)(ii)(B), Unanalyzed Condition | |
| Time - Person (Reporting Time:+6144.32 h256.013 days <br />36.573 weeks <br />8.416 months <br />) | |
| Opened: | Steve Brunson 21:26 Apr 20, 2015 |
| NRC Officer: | Charles Teal |
| Last Updated: | May 26, 2015 |
| 50998 - NRC Website
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Unit 1 | |
|---|---|
| Reactor critical | Critical |
| Scram | No |
| Before | Power Operation (100 %) |
| After | Power Operation (100 %) |
Unit 2 | |
|---|---|
| Reactor critical | Critical |
| Scram | No |
| Before | Power Operation (90 %) |
| After | Power Operation (90 %) |
WEEKMONTHYEARENS 526502017-03-30T13:22:00030 March 2017 13:22:00
[Table view]10 CFR 50.72(b)(3)(ii)(B), Unanalyzed Condition Unanalyzed Condition Due to Potential Tornado Generated Missiles ENS 525312017-02-03T19:58:0003 February 2017 19:58:00 10 CFR 50.72(b)(3)(ii)(B), Unanalyzed Condition Unanalyzed Condition - Appendix R Fire Analysis ENS 511202015-06-04T14:03:0004 June 2015 14:03:00 10 CFR 50.72(b)(3)(ii)(B), Unanalyzed Condition Unanalyzed Condition for a Postulated Fire ENS 510702015-05-14T20:00:00014 May 2015 20:00:00 10 CFR 50.72(b)(3)(ii)(B), Unanalyzed Condition Unanalyzed Condition Due to Excessive Toxic Chemicals Onsite ENS 506622014-12-09T23:25:0009 December 2014 23:25:00 10 CFR 50.72(b)(3)(ii)(B), Unanalyzed Condition Non-Functional Fire Barrier Discovered Affecting Both Safe Shutdown Paths ENS 506292014-11-19T21:18:00019 November 2014 21:18:00 10 CFR 50.72(b)(3)(ii)(B), Unanalyzed Condition Fire Penetration Not Meeting Requirements ENS 504552014-09-13T07:07:00013 September 2014 07:07:00 10 CFR 50.72(b)(3)(ii)(B), Unanalyzed Condition Fire Penetration Did Not Meet Appendix R Requirements ENS 503512014-08-07T21:07:0007 August 2014 21:07:00 10 CFR 50.72(b)(3)(ii)(B), Unanalyzed Condition Unanalyzed Condition Due to Discovery of Degraded Fire Barrier Walls ENS 509982014-08-07T21:07:0007 August 2014 21:07:00 10 CFR 50.72(b)(3)(ii)(B), Unanalyzed Condition This Is a Continuation of En #50351 ENS 510912014-08-07T21:07:0007 August 2014 21:07:00 10 CFR 50.72(b)(3)(ii)(B), Unanalyzed Condition This Is a Continuation of En #50351 and En #50998 ENS 501602014-05-30T20:10:00030 May 2014 20:10:00 10 CFR 50.72(b)(3)(ii)(B), Unanalyzed Condition Grouting in Fire Penetrations Does Not Meet Requirements ENS 499152014-03-14T15:55:00014 March 2014 15:55:00 10 CFR 50.72(b)(3)(ii)(B), Unanalyzed Condition Postulated Hot Short Fire Event That Could Adversely Impact Safe Shutdown Equipment ENS 496072013-12-04T20:40:0004 December 2013 20:40:00 10 CFR 50.72(b)(3)(ii)(B), Unanalyzed Condition a Potential Electrical Hot Short in the Rhr Shutdown Cooling Control Cable Could Result in an Inter-System Loca ENS 492852013-08-15T20:10:00015 August 2013 20:10:00 10 CFR 50.72(b)(3)(ii)(B), Unanalyzed Condition a Hot Short in the Rhr Shutdown Cooling Control Cable Could Result in an Inter-System Loca ENS 439922008-02-18T06:20:00018 February 2008 06:20:00 10 CFR 50.72(b)(3)(ii)(B), Unanalyzed Condition Unanalyzed Condition Due to #2 Turbine Bypass Valve Failure ENS 435032007-07-18T16:20:00018 July 2007 16:20:00 10 CFR 50.72(b)(3)(v)(A), Loss of Safety Function - Shutdown the Reactor, 10 CFR 50.72(b)(3)(v)(B), Loss of Safety Function - Remove Residual Heat, 10 CFR 50.72(b)(3)(ii)(B), Unanalyzed Condition, 10 CFR 50.72(b)(3)(v)(C), Loss of Safety Function - Release of Radioactive Material Unanalyzed Condition - Vent Space Less than Design Basis ENS 434992007-07-17T12:00:00017 July 2007 12:00:00 10 CFR 50.72(b)(3)(ii)(B), Unanalyzed Condition Unanalyzed Condition - Vent Space Less than Design Basis 2017-03-30T13:22:00 | |