Region 2 Forum - Recent Threads

Browns Ferry - Repair suggestions for Pre-Action Supervisory Systems. Do you have them, how maintained, how repaired / find leaks?

jecarroll@tva.gov — Mon, 18 Jul 2022 15:01:42 GMT

Repair suggestions for Pre-Action Supervisory Systems. Do you have them, how maintained, how repaired / find leaks?

RE: Browns Ferry - Repair suggestions for Pre-Action Supervisory Systems. Do you have them, how maintained, how repaired / find leaks?

Derrick_Herrin — Wed, 03 Aug 2022 19:53:32 GMT

Craig Garrison ,could you please provide input to the question I just posted about air compressor PMs?

RE: Browns Ferry - Repair suggestions for Pre-Action Supervisory Systems. Do you have them, how maintained, how repaired / find leaks?

Don Garbe, PE — Mon, 01 Aug 2022 15:27:47 GMT

Wolf Creek supplies service are through a regulator for supervisory air. The system has a low pressure trouble alarm to indicated a leak. Pressure gauge is monitored during monthly FP walkdowns.

RE: Vogtle 1/2 - Does anyone have Carbon Steel Piping where the header interfaces with the buildings? Do you have corrosion/leak issues with these lines? If yes, what have you done to identify and combat the issue?

Don Garbe, PE — Mon, 01 Aug 2022 15:23:17 GMT

Wolf Creek does. We have cathodic protection on these lines and they were originally externally coated with bitomastic. We have not had leaks as of yet.

Vogtle 1/2 - Does anyone have Carbon Steel Piping where the header interfaces with the buildings? Do you have corrosion/leak issues with these lines? If yes, what have you done to identify and combat the issue?

Austin Peterson — Mon, 18 Jul 2022 14:05:18 GMT

Does anyone have Carbon Steel Piping where the header interfaces with the buildings? Do you have corrosion/leak issues with these lines? If yes, what have you done to identify and combat the issue?

50 year Sprinkler Head Testing - how select populations?

jecarroll@tva.gov — Mon, 18 Jul 2022 12:37:51 GMT

Only build one scaffolding.

RE: 50 year Sprinkler Head Testing - how select populations?

Derrick_Herrin — Tue, 19 Jul 2022 15:17:58 GMT

NEIL Peach Bottom Plant 50 year Sprinkler head testing Presentation notes:

Recommended to take pictures of sprinkler systems prior to shipping in case shipping damage occurs

(2002) NFPA 25 Section 5.3.1.2* A representative sample of sprinklers for testing per
5.3.1.1.1 shall consist of a minimum of not less than 4 sprinklers
or 1 percent of the number of sprinklers per individual
sprinkler sample, whichever is greater.

Peach Bottom took four sprinkler heads per system regardless of type

Head selected should not be just the easiest heads to reach as that may not be representative

Head testing requirements should include increasing test pressure on heads until they actuate. In addition, the failed heads should be shipped back to the site for retention. These actions will assist with evaluation of the failure and future failures by the site.

Peach Bottom self approved deletion of License Renewal commitment to 50 year sprinkler head inspection/testing based on previous performance ( 1 cycle testing of 12 systems) and EPRI “Results of Accelerated Aging for Sprinklers Used in Nuclear Power Plants Report”.

2022 Conference feedback and 2023 Suggestions

jecarroll@tva.gov — Tue, 19 Jul 2022 14:53:00 GMT

Team:
Thank you for a great conference. While your thoughts are fresh, please provide feedback here for this years and offer suggestions for next year's conference. Just reply to this post so we can keep it localized. You can also contact Derrick Herrin, Craig Garrison, and/or me via email / phone.

2022 Strengths, weaknesses

2023 Suggestions (topics, logistics, programming, speakers, vendors, etc. )

RE: Browns Ferry - Repair suggestions for Pre-Action Supervisory Systems. Do you have them, how maintained, how repaired / find leaks?

Derrick_Herrin — Tue, 19 Jul 2022 14:38:15 GMT

Excellent suggestion, thank you for giving that feedback!

RE: Benchmarking and take backs Summary

Derrick_Herrin — Mon, 18 Jul 2022 21:03:52 GMT

Name tents at chairs, name tags for folks

Have something for fire trainers, fire marshals, put less in engineering side of things

Benchmarking and take backs Summary

jecarroll@tva.gov — Mon, 18 Jul 2022 20:13:15 GMT

Benchmarking

Hatch - provided info on how to deal with different issues. Desire to speed up input. Let's not let it take away from the meeting.

WBN - AFFF Cart Issues. Not having plant summaries in the morning.

SQN - Foam Cart. Bring Enforcer to next meeting. FF Strategy and Tactics.

BFN - Placement of command post in fires - especially transformers. Does not need to be under power lines.

North Anna - Power Line. KPI for work orders. Hatch is replacing diesels, reaching out.

St. Lucie - Career opportunities. The WO KPI to emphasize the importance of work. Power lines.

McGuire - Sprinkler Head testing

Brunswick - PIV Replacement. Contact info from others who have completed this.

Oconee - Nuclear Community online community. Cheater bars.

Catawba - buried piping degradation and recover / repair. Getting the site to understand the risk with WO and importance. Matching risk and dollars.

H.B. Robinson. Nuclear Community. Good tool. Discussion on Foam Carts.

VC Summers - TFPI information. Discussion on talking with management on FP repairs.

Discussion on Region II fires since 2021 meeting

Derrick_Herrin — Mon, 18 Jul 2022 21:03:23 GMT

While an effort was made to discuss all fire events since the last Region II meeting, only the learnings for the Region are recorded below.

Summer - for IRIS 525603, learning was that there was recall on this switch for CAT diesels that should have been addressed

Sequoyah - for IRIS 520726, learning was that a dirty heating element shorted and caught fire. Sites should test heaters regularly (to burn dirt off) or replace older heaters. For IRIS 508878, moving the trash compactor to a less risky area than next to building was an effective corrective action to prevent reoccurance

Oconee - for IRIS 521487, good to report electrical issues that did not result in a fire, it helps FPRA with risk numbers

North Anna - for IRIS 519955, EDG candle flame fire was accepted condition for previous years but now a intolerance for risk is driving a modification to deal with this issue once and for all.

Brunswick - for IRIS 527129, Hot work - Arch gouging caught fire cloth on fire, put out with smothering - Better work control practices are needed in future arch gouging to prevent arch gouging slag build up

RE: 50 year Sprinkler Head Testing - how select populations?

Derrick_Herrin — Mon, 18 Jul 2022 20:40:21 GMT

Region II plants that have performed 50 year sprinkler head sampling: Oconee, North Anna, Surry, Farley & Sequoyah.

Populations based around sprinkler head environment

Worked with scaffold workers to opportunistically get samples of sprinkler heads while scaffolding is up.

Documented heads replaced by drawing changes

Oconee reported no failures in testing performed so far

Wording out of NFPA 25 is representative, not 10%. Can use to leverage less heads being tested

St. Lucie tested recently and on a 8 or so head system, half of the sprinkler heads failed. The plan going forward is to replace all heads in system coming due going forward.

RE: Browns Ferry - Repair suggestions for Pre-Action Supervisory Systems. Do you have them, how maintained, how repaired / find leaks?

Craig Garrison — Mon, 18 Jul 2022 19:42:39 GMT

Brunswick- 1 preaction system with its own air compressor. No issues (relatively new system)

Duke - How are the fleets implementing the new INPO Fire Protection Health report template?

Derrick_Herrin — Mon, 18 Jul 2022 19:01:16 GMT

Southern Nuclear is implementing it with no exceptions. Seeing 5-6% drop in health scores due to EQ section for equipment failures

Dominion - implementing it with no exceptions

TVA - Working on implementing

NextEra - Working on implementing

Duke - Working on implementing

VC Summer - OE requested on work prioritization process for fire protection impairments (Licensing required and NEIL)?

Derrick_Herrin — Mon, 18 Jul 2022 15:37:38 GMT

RE: VC Summer - OE requested on work prioritization process for fire protection impairments (Licensing required and NEIL)?

Derrick_Herrin — Mon, 18 Jul 2022 18:56:17 GMT

Successful fleets have work order priorities that close out fire protection impairments. The work management procedure screening process was changed to put higher priority on impairments with fire watches. Action to Len Casella to put together summary of what Southern Nuclear did to turn the ship on FP KPIs and put in Nuclear Community on this post.

RE: Browns Ferry - Repair suggestions for Pre-Action Supervisory Systems. Do you have them, how maintained, how repaired / find leaks?

Derrick_Herrin — Mon, 18 Jul 2022 18:44:04 GMT

Farley - Instrument air with air dryer

Hatch - Instrument air with air dryer, some deluge and dry pipe systems have their own air compressor

Vogtle 1/2 - Instrument air with air dryer, snoop for leaks if needed

Vogtle 3/4 - Instrument air with air dryer

Watts Bar - Instrument air with air dryer, can use helium to detect leaks

Sequoyah - Service air with air dryer

Browns Ferry - Three units with large systems supplied by service air (moisture carryover)

North Anna - Service air with air dryer, no issues

Surry - Service air with air dryer, no issues

St. Lucie - Nitrogen bottles, no issues

McGuire - No pre-action systems

Brunswick -

Oconee - No pre-action systems

Harris -

Catawba - Service air with air dryer, no issues

Robinson - Instrument air with air dryer

VC Summer - Service air with air dryer, no issues

RE: Browns Ferry - Repair suggestions for Pre-Action Supervisory Systems. Do you have them, how maintained, how repaired / find leaks?

Derek.Schroeder — Mon, 18 Jul 2022 18:39:07 GMT

Tool to find leaks <<Fluke ii900 Acoustic Imaging Camera: Sonic Industrial Imager | Fluke>>

RE: What are Region II's latest NRC violations/ FPTI inspection results or other relevant O.E.?

jecarroll@tva.gov — Mon, 18 Jul 2022 18:08:41 GMT

BFN -

Catawba - March 2021 - None

Farley - July 2021 - no violations. Did have a resident violation.

Hatch - May 2022 - No violations.

Harris - Nov 2021 - 1 minor violation, safe shutdown analysis. Resident Violation. Transient Combustible. Green - NCV. No permit on an item.

McGuire - March 2021 - none.

North Anna - Feb 2021 - none. Fire PRA, not NFPA 805. Timer in CO2 panel. Cam Timers. Discharged 10 secs of CO2 into Diesel Generator room. Is it possible to put so much CO2 in the room that the diesel wouldn't start?

Oconee - Feb 2022 - Safe Shutdown issues. 2 Green.

Robinson - Sept 2020 - None

Sequoyah - NCV - Green. Implementing verification of remote safe shutdown transfer switches. Comments on Ground Fault Equivalent Hot Shorts.

St. Lucie - July 2019. None. When Time zero was established for SSD. Recommended annual tests on fire dampers.

Surry - Sept 2021. 1 - NCV-Green. Operations SSD Procedure. Time critical action - wrong breaker number.

VC Summer - August 2019. No Violations.

WBN - Feb 2021. 2 NCV-Green. Latent design error. CCS. FCR for 6 foot clearance for protection. And 2) Dusty Sprinkler head.

Vogtle - 1& 2 - June 2021. Hot shorts.

What are Region II's latest NRC violations/ FPTI inspection results or other relevant O.E.?

Derrick_Herrin — Mon, 18 Jul 2022 17:13:33 GMT

Recently in Region II, the NRC has focused on safe shutdown manual operator actions, ignition sources and FPRA

RE: What are Region II's latest NRC violations/ FPTI inspection results or other relevant O.E.?

Derrick_Herrin — Mon, 18 Jul 2022 18:04:31 GMT

Farley - Last FPTI March 2021, minor issues with combustible controls, blocked sprinkler head. Lesson learned is that we have consider the programmatic element picked in consideration which when it is hot work or transient combustible opens up the whole plant to inspection. Resident violation for Halon system discharge where two dampers did not close for enclosure integrity. Dampers were not tracked as impacting halon system functionality in NFPA 805 monitoring and Unavailability Time was not taken.

Hatch - Last FPTI May 2022, results of no findings. NRC focused on mostly safe shutdown manual operator actions and FPRA. Picked safe shutdown remote panel, intake and control building. They picked hot work and DECP screening reviews

Vogtle 1/2 - Last FPTI June 2021, one green NCV for untimely corrective actions due to closing an action to a LTAM that was never completed, minor for legacy wood transient combustible

Vogtle 3/4 - N/A

Watts Bar - Last FPTI Feb 2021, two green NCVs, one for legacy issue with unprotected cable credited in FPRA as credited, other for "heavily loaded" dusty solder type sprinkler head in front of HVAC duct outlet, would have possibly delayed initiation of sprinkler head

Sequoyah - Last FPTI Sept 2020, no violations with green NCV for pre-conditioning switch in safe shutdown action, Grand Gulf Hot Short issue looked at

Browns Ferry - Last FPTI Feb 2022, Violation on incipient fire detection not being tested per requirements, found issues with air sample manifolds.

North Anna - Last FPTI Feb 2021, no violations, one URI (Un-Resolved Item) about circuit single or MSO analysis, Non-TFPI violation about MSOs for diesel bus due to failure to analyze all modes of failure for some power circuits (App R plant). Resident challenge for discharging CO2 into EDG room for 5-6 seconds accidentally and calling EDG functional.

Surry - Last FPTI Sept 2021, one green NCV for Ops Time critical operator action due to procedure being incorrect on breaker number and not being prioritized appropriately for correction.

St. Lucie - Last FPTI Sept 2019, no findings, a lot of conversation about when T-0 is established, annual drop test being required on fire dampers (not required in COR)

McGuire - Last FPTI March 2022, no violations

Brunswick - Last FPTI Feb 2022, no violations

Oconee - Last FPTI Feb 2022, two green violations for safe shutdown (procedural issue and circuit (pump motor control power supply) that would not operate per manual safe shutdown actions)

Harris - Last FPTI Nov 2021, one minor violation for due to untimely PMT maintenance on detection system. Resident violation green NCV for transient combustible without permit as required by procedure (metal cart with 30 gallons of oil in hallway)

Catawba - Last FPTI March 2021, no violations

Robinson - Last FPTI Sept 2020, no violations

VC Summer - Last FPTI Aug 2019, no violations.

RE: Hatch - Who has small (30 gallon) foam carts for use inside buildings with significant amounts of oil?

Derrick_Herrin — Mon, 18 Jul 2022 15:28:32 GMT

St. Lucie - Angus Foam carts (120 liter gallons)

Hatch - Who has small (30 gallon) foam carts for use inside buildings with significant amounts of oil?

Derrick_Herrin — Mon, 18 Jul 2022 13:53:26 GMT

Follow up question, who has replaced foam carts recently?

Oconee - What is your longest standing (Licensing Required and NEIL) impairment and what is keeping you from getting it fixed?

Derrick_Herrin — Mon, 18 Jul 2022 15:26:44 GMT

Farley - VESDA Obsolete Detection system- 450 days old - Waiting on Mod

Hatch - Broken Diesel Driven Fire pump - 200 days old - Waiting on Mod to replace this engine

Vogtle 1/2 - NSCW tower detection system - 300 days - No Maint. resources, getting contractor to replace

Vogtle 3/4 - Detection / Automatic Suppression not installed yet in Spent Fuel Pull, waiting on completion of new system installation and turnover

Watts Bar - Electric fire pump OOS due pressure control valve - design issue to replace current valve

Sequoia - Multiple NEIL impairments with three NEIL impairments back to 2013 but no licensing required impairments, need funding for NEIL impairment repair

Browns Ferry - Supervision Alarms (Pre-action system) failures - greater than 450 days - funding and management priority

North Anna - Simplex panel detection system card issue - greater than 450 days - needs ED for obsolete part but have positive path forward to closure

Surry - Hose House in PA with supply piping failed due to graphic corrosion - 500 days - Lingering repair and lack of ownership - developed fire protection excellence team and real improvement in old impairments noted since

St. Lucie - Obsolete and degraded FP detection panels and ECCS detection system field devices - open since 2013 due to lack of funding and priority, changed Work Management Process and have funding now and impairments are on track for closure in near future

McGuire - Detection system OOS (NEIL) due to notification system failure - 6 months, lack of funding and plant priority

Brunswick - Drain system failure to handle multiple system actuation in short time period due to drain blockage, 2550 days, complexity and plant prioritization, on track for closure next outage

Oconee - Multiple hydrant issues, oldest is 2000 days, complexity of repair, rework and work prioritization

Harris - No comment

Catawba - Detection failures in containment - 330 days (Outage required) - Outage require for repair

Robinson - No long term impairments (have Fire protection oversight committee, work prioritization and MFIN team repairing with urgency)

VC Summer - No long term impairments