Catching Up with Nuclear Safety Culture’s Bad Boys: Entergy and TVA

Entergy Headquarters

TVA Headquarters

We haven’t reported for awhile on the activities of the two plant operators who dominate the negative news in the Nuclear Safety Culture (NSC) space, viz., Entergy and TVA.  Spoiler alert: there is nothing novel or unexpected to report, only the latest chapters in their respective ongoing sagas.

Entergy

On March 12, 2018 the NRC issued a Confirmatory Order* (CO) to Entergy for violations at the Grand Gulf plant: (1) an examination proctor provided assistance to trainees and (2) nonlicensed operators did not tour all required watch station areas and entered inaccurate information into the operator logs.  The NRC characterized these as willful violations.  As has become customary, Entergy requested Alternative Dispute Resolution (ADR).  Entergy agreed to communicate fleet-wide the company’s intolerance for willful misconduct, evaluate why prior CO-driven corrective actions failed to prevent the current violations, conduct periodic effectiveness reviews of corrective actions, and conduct periodic “organizational health surveys” to identify NSC concerns that could contribute to willful misconduct.

On March 29, 2018 the NRC reported** on Arkansas Nuclear One’s (ANO’s) progress in implementing actions required by a June 17, 2016 Confirmatory Action Letter (CAL).  (We reported at length on ANO’s problems on June 25, 2015 and June 16, 2016.)  A weak NSC has been a major contributor to ANO’s woes.  The NRC inspection team concluded that all but one corrective actions were implemented and effective and closed those items.  The NRC also concluded that actions taken to address two inspection focus areas and two Yellow findings were also satisfactory.

On April 20, 2018 the NRC reported*** on ANO’s actions to address a White inspection finding.  They concluded the actions were satisfactory and noted that ANO’s root cause evaluation had identified nine NSC aspects with weaknesses.  Is that good news because they identified the weaknesses or bad news because they found so many?  You be the judge.

On June 18, 2018 the NRC closed**** ANO's CAL and moved the plant into column 1 of the Reactor Oversight Process Action Matrix.

TVA

The International Atomic Energy Agency (IAEA) conducted an Operational Safety Review Team (OSART) review***** of Sequoyah during August 14-31, 2017.  The team reviewed plant operational safety performance vis-à-vis IAEA safety standards and made appropriate recommendations and suggestions.  Two of the three significant recommendations have an NSC component: (1) “improve the performance of management and staff in challenging inappropriate behaviours” and “improve the effectiveness of event investigation and corrective action implementation . . .” (p. 2)

Focusing on NSC, the team observed: “The procedure for nuclear safety culture self-assessments does not include a sufficiently diverse range of tools necessary to gather all the information required for effective analysis. The previous periodic safety culture self-assessment results were based on surveys but other tools, such as interviews, focus groups and observations, were only used if the survey revealed any gaps.” (p. 60)

On March 14, 2018 the NRC reported^ on Watts Bar’s progress in addressing NRC CO EA-17-022 and Chilling Effect Letter (CEL) EA-16-061, and licensee action to establish and maintain a safety-conscious work environment (SCWE).  (We discussed the CEL on March 25, 2016 and NSC/SCWE problems on Nov. 14, 2016.)  Licensee actions with NSC-related components were noted throughout the report including the discussions on plant communications, training, work processes and independent oversight.  The sections on assessing NSC/SCWE and “Safety Over Production” included inspection team observations (aka opportunities for improvement) which were shared with the licensee. (pp. 10-11, 17, 24-27)  One TVA corrective action was to establish a Fleet Safety Culture Peer Team, which has been done.  The overall good news is the report had no significant NSC-related negative findings.  Focus group participants were generally positive about NSC and SCWE but expressed concern about “falling back into old patterns” and “declaring success too soon.” (p. 27)

Our Perspective

For Entergy, it looks like business as usual, i.e., NSC Whac-A-Mole.  They get caught or self-report an infraction, go to ADR, and promise to do better at the affected site and fleet-wide.  Eventually a new problem arises somewhere else.  The strength of their overall NSC appears to be floating in a performance band below satisfactory but above intolerable.

We are a bit more optimistic with respect to TVA.  It would be good if TVA could replicate some of Sequoyah’s (which has managed to keep its nose generally clean) values and practices at Browns Ferry and Watts Bar.  Perhaps their fleet wide initiative will be a mechanism for making that happen.

We applaud the NRC inspection team for providing specific information to Watts Bar on actions the plant could take to strengthen its NSC.

Bottom line: The Sequoyah OSART report is worth reviewing for its detailed reporting of the team’s observations of unsafe (or at least questionable) employee work behaviors.


*  K.M. Kennedy (NRC) to J.A. Ventosa (Entergy), “Confirmatory Order, NRC Inspection Report 05000416/2017014, and NRC Investigation Reports 4-2016-004 AND 4-2017-021” (Mar. 12, 2018).  ADAMS ML18072A191.

**  N.F. O’Keefe (NRC) to R.L. Anderson (Entergy), “Arkansas Nuclear One – NRC Confirmatory Action Letter (EA-16-124) Follow-up Inspection Report 05000313/2018012 AND 05000368/2018012” (Mar. 29, 2018).  ADAMS ML18092A005.

***  N.F. O’Keefe (NRC) to R.L. Anderson (Entergy), “Arkansas Nuclear One, Unit 2 – NRC Supplemental Inspection Report 05000368/2018040” (Apr. 20, 2018).  ADAMS ML18110A304.

****  K.M. Kennedy (NRC) to R.L. Anderson (Entergy), "Arkansas Nuclear One – NRC Confirmatory Action Letter (EA-16-124) Follow-up Inspection Report 05000313/2018013 AND 05000368/2018013 and Assessment Follow-up Letter" (Jun. 18, 2018)  ADAMS ML18165A206.

 *****  IAEA Operational Safety Review Team (OSART), Report of the Mission to the Sequoyah Nuclear Power Plant Aug. 14-31, 2017, IAEA-NSNI/OSART/195/2017.  ADAMS ML18061A036. The document date in the NRC library is Mar. 2, 2018.

^  A.D. Masters (NRC) to J.W. Shea “Watts Bar Nuclear Plant – Follow-up for NRC Confirmatory Order EA-17-022 and Chilled Work Environment Letter EA-16-061; NRC INSPECTION REPORT 05000390/2017009, 05000391/2017009” (Mar. 14, 2018).  ADAMS ML18073A202.

Nuclear Safety Culture: Catching up with the NRC

NRC Building

No big nuclear safety culture (NSC) news has come out of the Nuclear Regulatory Commission (NRC) so far in 2017 but there have been a few minor items worth mentioning.

New Leadership Model for NRC*

In 2015, the NRC staff proposed developing an explicit NRC leadership model that would complement the agency’s existing Principles of Good Regulation and Organizational Values (Principles).  The model’s attributes would include “empowering employees . . . creative thinking, innovation, and informed risk-taking . . . .”  The Commission disagreed, saying staff should focus on the characteristics of the Principles that support the identified organizational attributes.

Subsequent staff research identified performance improvement opportunities in the areas of employee decision-making, empowerment and consensus, employee creativity, informed risk-taking and innovation.  They are re-proposing an explicit leadership model that focuses on “Empowerment & Shared Leadership, Innovation & Risk Tolerance, Participative Decision-Making, Diversity in Thought, Receptivity to New Ideas and Thinking, and Collaboration & Teamwork . . . .”

This was a significant social science project to rationalize development of a highly specified management model.  Could it contribute to improving the agency’s “effectiveness, efficiency, and agility”?  Or is it, in essence, a regulation that would suck energy away from what NRC leaders need to do to succeed in a changing environment?  You be the judge.

NRC Lessons-Learned Program (LLP)**

This program was established after the Davis-Bessie fiasco to review agency, nuclear industry and outside incidents for lessons-learned that verify or could strengthen NRC processes.  Because a recognized lesson-learned leads to an NRC corrective action plan (i.e., resource usage) there is a high threshold for accepting proposed lessons-learned.  In the past year, six incidents ranging from the government response to the Flint, MI water crisis to two gripe papers published by the Union of Concerned Scientists passed a preliminary screen.  Ultimately, none of the items met the LLP minimum criteria although all were addressed by other NRC groups or processes.  

The LLP Oversight Board is considering whether the LLP should be discontinued, the threshold should be lowered, or the status quo approach should be continued.  Our concern is that the hard-headedness which characterizes the nuclear industry has also infected the LLP and prevents them from being open to actually learning anything from the experience of others.

Continued NSC Pressure on Problem Plants

Finally, NRC continues to (rightfully) squeeze plants with recognized NSC problems to fix such problems.  Arkansas Nuclear One (ANO) has a Confirmatory Action Letter (CAL) that requires the plant to implement specific improvement steps, including establishing a NSC Observer function to monitor leader behavior and enhancing decision making to ensure NSC aspects are considered.***  We discussed ANO’s NSC problems at length on June 16, 2016.

Watts Bar received part 2 of an inspection report on plant performance in the areas of NSC and Safety Conscious Work Environment (SCWE).****  It was a continuation of the beat down they received in part 1 (which we reviewed on Nov. 14, 2016).  The major findings were site-wide challenges to Watts Bar’s SCWE and weaknesses in the criteria used to evaluate NSC standards.  The inspection team’s detailed findings were too numerous to list here but included disagreeing with the site’s interpretation of safety “pulsing” data, management relaxing the standards for evaluating NSC data, overly limited assessment of NSC survey results and weaknesses in the training for NSC monitors.  The report is worth reading to show what a diligent inspector sees when looking at the same plant-produced NSC data that management has been cherry-picking for positive results and trends.

Our Perspective

The first calendar quarter of 2017 looks like business as usual at the NRC, at least when it comes to NSC.  That’s probably as it should be; we really don’t want them to be too distracted by the downsizing and problems occurring in the U.S. commercial nuclear industry.  The agency is trying to figure out how to be more agile and, without saying so, looking forward to having to do the same work with fewer resources.  (While some costs, e.g., plant inspection activities, are variable and can scale down with the industry, our guess is much of their work/cost structure is more-or-less fixed.)

There was a safety culture session at the recent Regulatory Information Conference, which we will separately review.


*  Memo from V.M. McCree to NRC Commissioners, “Re-Examination of the Need for a U.S. Nuclear Regulatory Commission Leadership Model” (Feb. 6, 2017).  ADAMS ML16348A323.

**  Memo from V.M. McCree to NRC Commissioners, “Annual Report on the Lessons-Learned Program” (Feb. 17, 2017).  ADAMS ML16231A323.

***  Letter from T.R. Farnholtz (NRC) to R. Anderson (ANO), “Arkansas Nuclear One – NRC Component Design Bases Inspection and Confirmatory Action Letter Follow-up Inspection Report 05000313/2016008 AND 05000368/2016008” (Feb. 28, 2017), pp. A3-5/-6.  ADAMS ML17059D000.

****  Letter from J.T. Munday (NRC) to J.W. Shea (TVA), “Watts Bar Nuclear Plant – NRC Problem Identification and Resolution Inspection (Part 2); and Safety Conscious Work Environment Issue of Concern Follow-up; NRC Inspection Report 05000390/2016013, 05000391/2016013” (March 10, 2017), pp. 2, 13-16.  ADAMS ML17069A133.

Nuclear Safety Culture at ANO—the NRC Weighs In

Arkansas Nuclear One (credit: Edibobb)

On June 25, 2015 we posted about Arkansas Nuclear One’s (ANO) performance problems (a stator drop, inadequate flood protection and unplanned scrams) and the Nuclear Regulatory Commission’s (NRC's) reaction.  The NRC assigned ANO to column 4 of the Action Matrix where it receives the highest level of oversight for an operating plant.  As part of this increased oversight, the NRC conducted a comprehensive inspection of ANO performance, programs and processes.  A lengthy inspection report* was recently issued.

According to the NRC press release** the inspection team identified the following major issues:

“Resource reductions and leadership behaviors were the most significant causes for ANO’s declining performance. . . . ANO management did not reduce workloads through efficiencies or the elimination of unnecessary work, . . . Leaders . . . did not address expanding work backlogs***. . . . An unexpected increase in employee attrition between 2012 and 2014 caused a loss in experienced personnel, . . . Since 2007, the reduced resources created a number of changes that slowly began to impact equipment reliability.  The Entergy fleet reduced preventive maintenance and extended the time between some maintenance activities.”

The press release goes on to list numerous ANO corrective actions and NRC observations that suggest the potential for improved plant performance.

What About ANO’s Safety Culture?

The press release also mentions that the inspection team evaluated the adequacy of a 2015 Third Party Nuclear Safety Culture Assessment (TPNSCA) conducted at ANO.  The press release gives short shrift to the key role a weak safety culture (SC) played in creating ANO’s problems in the first place and the extensive SC questions raised and diagnostics performed by the NRC inspection team.

Last June, based on NRC and ANO meeting presentations, we concluded “the ANO culture endorses a “blame the contractor” attitude, accepts incomplete investigations into actual events and potential problems, and is content to let the NRC point out problems for them.”  These are serious deficiencies.  Do the same or similar problems appear in the inspection report?  To answer that question, we need to dig into the details of the 243 page report.

The Cover Letter

Top-level SC problems are included in the NRC cover letter which says “The inspection team identified what it considered to be missed opportunities for ANO to have promptly initiated performance improvements since being placed in Column 4.  More specifically, ANO: 1) was slow to implement corrective actions to address the findings from the Corrective Action Program cause evaluation and the Third Party Nuclear Safety Culture Assessment; 2) did not perform an evaluation of the causes for safety culture problems; . . .” (letter, p. 2)

Executive Summary

The report's Executive Summary says “The Third Party Nuclear Safety Culture Assessment identified that ANO personnel tolerated, and at times normalized, degraded conditions.”  Expanding on the missed opportunities comment in the cover letter, “the NRC team’s independent safety culture evaluation noted limited improvement in safety culture since the completion of ANO’s independent Third Party Nuclear Safety Culture Assessment.” (report p. 5)  “ANO did not create a specific improvement plan to address the findings of the safety culture assessments, choosing to address selected safety culture attributes that were associated with root cause evaluations rather than treating the findings in the context of a separate problem area.  By not performing a cause evaluation for safety culture, ANO management missed the opportunity to address the full scope of safety culture weaknesses.” (pp. 5-6)

Review of ANO Recovery Plan 

The NRC’s critique of ANO’s Recovery Plan included “The NRC team questioned the recovery team’s decision not to perform casual evaluations of the PAs [Problem Areas].  In response, ANO performed apparent cause evaluations (ACEs) or gap analyses for each PA.  The NRC team questioned the recovery team’s decision not to perform causal evaluations for the safety culture attributes identified in [a 2014] . . . safety culture survey, the TPNSCA, and the RCEs [Root Cause Evaluations].  The team also questioned the recovery team’s decision not to treat safety culture as a separate problem area.” (p. 21)

This is an example where the NRC was still identifying ANO’s overarching problems for the plant staff.

Review of RCEs for Fundamental Problem Areas

“ANO’s Vendor Oversight RCE identified weak implementation of administrative controls and placing undue confidence in vendor services as common cause failures. However, ANO did not assess the underlying safety culture aspects.” (p. 110, emphasis added)

This is not “blame the vendor” but is a different serious problem, viz., an over-reliance on vendor activities to protect the customer.  (This problem is not unique to ANO; it also might exist at the Waste Isolation Pilot Plant.  See our May 3, 2016 post for details.)

Inspection Report Chapter on SC

The NRC team conducted its own assessment of ANO’s SC. The NRC team interviewed personnel at all levels, conducted focus group discussions, performed behavioral observations, reviewed documents and relevant plant programs, and evaluated plant management meetings.  Overall, they assessed all ten SC traits using the full set of SC attributes contained in NRC documentation.  For each trait, the report includes its attributes, inspection team observations and findings, and relevant ANO corrective actions.

The team also reviewed seven RCEs and concluded ANO addressed the major SC attributes identified in each RCE.  However, “The NRC team noted that ANO identified that some safety culture attributes were contributors to several of the RCE problem statements, but ANO did not consider the collective significance.” (p. 184)

ANO took the hint.  “In response to the NRC team’s concerns, ANO performed a common cause analysis of all of the safety culture attributes that were identified in the recovery RCEs in order to assess the collective significance and causes.” (p. 185)  ANO developed a SC Area Action Plan (AAP) and the NRC concluded “The corrective actions identified in the NSC AAP were comprehensive and appropriate to address the causes for safety culture weaknesses.” (p. 186)

“The NRC team’s graded safety culture assessment independently confirmed the results from the TPNSCA.” (p. 188)

“The NRC team was concerned that the SCLT’s [Safety Culture Leadership Team, senior managers] conclusion that ANO’s safety culture was “adequate” in August 2015 did not appropriately reflect the data provided by, or the recommendations from, the NSCMP [Nuclear Safety Culture Monitoring Panel, mid-level personnel].  This SCLT conclusion did not reflect the declining condition with respect to safety culture and indicated a lack of awareness that improvements in safety culture at ANO were needed.”  The SCLT eventually came around and in December 2015 declared that ANO’s SC was not acceptable. (p. 192)

Our Perspective

The NRC is optimistic that ANO has correctly identified the root causes of its performance problems and has undertaken corrective actions that will ultimately prove effective.  We hope so but we’ll go with “trust but verify” on this one.  ANO still exhibits problems with incomplete analyses and leaning on the NRC to identify systemic deficiencies.

The NRC team took a good look at ANO's SC.  Quite frankly, their effort was more comprehensive than we expected.  They used an acceptable methodology for their SC assessment.  The fact that their assessment findings were consistent with the TPNSCA is not surprising.  SC evaluation is a robust social science activity and qualified SC evaluators using similar techniques should obtain generally comparable results.

We believe the NRC’s SC professionals are qualified and competent but probably encouraged to support the overall inspection findings.  The elephant in the room is that SC is a policy, not a regulation.  Would the NRC keep a plant in column 4 based solely on their belief that the plant SC is deficient?  Look at the contortions the agency performed at Palisades as that plant’s SC somehow went from weak, with constant problems, to “improving” and, we inferred, acceptable.  (See our Jan. 30, 2013 post for details.)

There may have been a bit of similar magical thinking at ANO.  In the inspection report, every SC trait had examples of shortcomings but also had “appropriate” corrective actions to improve performance.****  How can this be when ANO (and Entergy) have been so slow to grasp the systemic nature of their SC problems?

Let’s close on a different note.  Earlier this year ANO named a full-time SC manager, a person whose background is in plant security.  On the surface, this is an “unfiltered” choice.  (See our March 10, 2016 post for a discussion of filtering in personnel decisions.)  He may be exactly the type of person ANO needs to make SC improvements happen.  We wish him well.


*  M. L. Dapas (NRC) to J. Browning (ANO), “Arkansas Nuclear One – NRC Supplemental Inspection Report 05000313/2016007 and 05000368/2016007” (June 9, 2016).  ADAMS ML16161B279.

**  V. Dricks, Press Release, “NRC Issues Comprehensive Inspection Report on Arkansas Nuclear One” (June 13, 2015).

***  We have often noted that large backlogs, especially of safety-related work, are an artifact of a weak SC.

****  One trait was judged to have no significant issues so corrective action was not needed.

Is Entergy’s Nuclear Safety Culture Hurting the Company or the Industry?

Entergy Headquarters  Source: Nola.com

A recent NRC press release* announced a Confirmatory Order (CO) issued to Entergy Operations, Inc. following an investigation that determined workers at Waterford 3 failed to perform fire inspections and falsified records.  Regulatory action directed at an Entergy plant has a familiar ring and spurs us to look at various problems that have arisen in Entergy’s fleet over the years.  The NRC has connected the dots to safety culture (SC) in some cases while other problems suggest underlying cultural issues. 

Utility-Owned Plants

These plants were part of the utility mergers that created Entergy.

Arkansas Nuclear One (ANO)

ANO is currently in Column 4 of the NRC Action Matrix and subject to an intrusive IP 95003 inspection.  ANO completed an independent SC assessment.  We reviewed their problems on June 25, 2015 and concluded “. . . the ANO culture endorses a “blame the contractor” attitude, accepts incomplete investigations into actual events and potential problems, and is content to let the NRC point out problems for them.”

In 2013 ANO received a Notice of Violation (NOV) after an employee deliberately falsified documents regarding the performance of Emergency Preparedness drills and communication surveillances.**

Grand Gulf

We are not aware of any SC issues at Grand Gulf.

River Bend

In 2014 Entergy received a CO to document commitments made because of the willful actions of an unidentified River Bend security officer in March 2012.

(In 2014 the NRC Office of Investigations charged that a River Bend security officer had deliberately falsified training records in Oct. 2013.  It appears a subsequent NRC investigation did not substantiate that charge.***)

In 2012 River Bend received a NOV for operators in the control room accessing the internet in violation of an Entergy procedure.

In 2011 River Bend received a CO to document commitments made because an employee apparently experienced retaliatory action after asking questions related to job qualifications.  Corrective actions included Entergy reinforcing its commitment to a safety conscious work environment, reviewing Employee Concerns Program enhancements and conducting a plant wide SC survey.

In 1999 River Bend received a NOV for deliberately providing an NRC inspector with information that was incomplete and inaccurate.

Waterford 3

As noted in the introduction to this post, Waterford 3 recently received a CO because of failure to perform fire inspections and falsifying records.

Entergy Wholesale Plants

These plants were purchased by Entergy and are located outside Entergy’s utility service territory.

FitzPatrick

Entergy purchased FitzPatrick in 2000.

In 2012, FitzPatrick received a CO after the NRC discovered violations, the majority of which were willful, related to adherence to site radiation protection procedures.  Corrective actions included maintaining the SC processes described in NEI 09-07 “Fostering a Strong Nuclear Safety Culture.”

Entergy plans on closing the plant Jan. 27, 2017.

Indian Point

Entergy purchased Indian Point 3 in 2000 and IP2 in 2001.

In 2015 Indian Point received a NOV because it provided information to the NRC related to a licensed operator's medical condition that was not complete and accurate in all material respects.

In 2014 Indian Point received a NOV because a chemistry manager falsified test results.  The manager subsequently resigned and then Entergy tried to downplay the incident.  Our May 12, 2014 post on this event is a reader favorite.

During 2006-08 Indian Point received two COs and three NOVs for its failure to install backup power for the plant’s emergency notification system.

Palisades

Entergy purchased Palisades in 2007.

In 2015 Entergy received a NOV because it provided information to the NRC related to Palisades’ compliance with ASME Code acceptance criteria that was not complete and accurate in all material respects.

In 2014 Entergy received a CO because a Palisades security manager assigned a supervisor to an armed responder role for which he was not currently qualified (see our July 24, 2014 post).

Over 2011-12 a virtual SC saga played out at Palisades.  It is too complicated to summarize here but see our Jan. 30, 2013 post.

In 2012 Palisades received a CO after an operator left the control room without permission and without performing a turnover to another operator.  Corrective actions included conducting a SC assessment of the Palisades Operations department.

Pilgrim

Entergy purchased Pilgrim in 1999.

Like ANO, Pilgrim is also in column 4 of the Action Matrix.  They are in the midst of a three-phase IP 95003 inspection currently focused on corrective action program weaknesses (always a hot button issue for us); a plant SC assessment will be performed in the third phase.

In 2013, Pilgrim received a NOV because it provided information to the NRC related to medical documentation on operators that was not complete and accurate in all material respects.

In 2005 Pilgrim received a NOV after an on-duty supervisor was observed sleeping in the control room. 

Vermont Yankee

Entergy purchased Vermont Yankee in 2002.

During 2009, Vermont Yankee employees made “incomplete and misleading” statements to state regulators about tritium leakage from plant piping.  Eleven employees, including the VP for operations, were subsequently put on leave or reprimanded.  Click the Vermont Yankee label to see our multiple posts on this incident. 

Vermont Yankee ceased operations on Dec. 29, 2014.

Our Perspective

These cases involved behavior that was wrong or, at a minimum, lackadaisical.  It’s not a stretch to infer that a weak SC may have been a contributing factor even where it was not specifically cited.

Only three U.S. nuclear units are in column 4 of the NRC’s Action Matrix—and all three are Entergy plants.  Only TVA comes close to Entergy when it comes to being SC-challenged.

We can’t predict the future but it doesn’t take a rocket scientist to plot Entergy’s nuclear trajectory.  One plant is dead and the demise of another has been scheduled.  It will be no surprise if Indian Point goes next; it’s in a densely populated region, occasionally radioactively leaky and a punching bag for New York politicians.

Does Entergy’s SC performance inspire public trust and confidence in the company?  Does their performance affect people's perception of other plants in the industry?  You be the judge.


*  NRC press release, “NRC Issues Confirmatory Order to Entergy Operations, Inc.” (April 8, 2016).  ADAMS ML16099A090.

**  COs and NOVs are summarized from Escalated Enforcement Actions Issued to Reactor Licensees on the NRC website.

***  J.M. Rollins (NRC) to J. McCann (Entergy), Closure of Investigation 014-2014-046 (Jan. 25, 2016.)  ADAMS ML16025A141.

Safety Culture at Arkansas Nuclear One

Arkansas Nuclear One (credit: Edibobb)

Everyone has heard about the March 31, 2013 stator drop at Arkansas Nuclear One (ANO).  But there was also unsatisfactory performance with respect to flood protection and unplanned scrams.  As a consequence, ANO has been assigned to column 4 of the NRC’s Action Matrix where it will receive the highest level of oversight for an operating plant.

When a plant is in column 4 the NRC takes a particular interest in its safety culture (SC) and ANO is no exception.  NRC required ANO to have an independent (i.e., outside third party) SC assessment, which was conducted starting in late 2014.  While the assessment report is not public, some highlights were discussed during the May 21, 2015 NRC staff briefing of the Commissioners on the results of the April 15, 2015 Agency Action Review Meeting.*

NRC Presentation

The bulk of the staff presentation was a soporific review of agency progress in a variety of areas.  But when the topic turned to ANO, the Regional Administrator responsible for ANO was quite specific and minced no words.  Following are the key problems he reviewed.  See if you can connect the dots on SC issues based on these artifacts.

Let’s start with the stator drop.  ANO’s initial root cause evaluation did not identify any root or contributing causes related to ANO’s own performance, but rather focused solely on the contractor.  After the NRC identified ANO’s failure to follow its load handling procedure, ANO conducted another root cause evaluation and identified their own organizational performance issues such as inadequate project oversight and non-conservative decision making. (pp. 28-29)

The stator drop damaged a fire main which caused localized flooding.  This led to an extended condition review which identified various equipment and structures that could be subject to flooding.  The NRC inspectors pointed out deficiencies in the condition review and identified corrective actions that likely would not work.  In addition, earlier flooding walkdowns completed as part of the NRC’s post-Fukushima requirements failed to identify the majority of the flood protection deficiencies.  These walkdowns were also performed by a contractor.  (pp. 29-31)

Finally, ANO did not report an April 2014 Unit 2 trip as an unplanned scram because the trip occurred during a planned down power evolution.  After prodding by the NRC inspectors, ANO reclassified this event as an unplanned scram. (pp. 31-32)

Overall, the NRC felt it was driving ANO to perform complete evaluations and develop effective corrective actions.  NRC believes that ANO’s “cause evaluations typically don't provide for a thorough assessment of organizational and programmatic contributors to events or issues.” (p. 35)  Later, in response to a question, the Regional Administrator said “I think the licensee clearly needs to own the performance gaps, ensure that their assessments in the various areas are comprehensive and then identify appropriate actions, and then engage and ensure those actions are effective. . . . I don't want to be in a position where our inspection activities are the means for identifying the performance gaps.” (p. 44)

Responding to a question about ANO’s independent SC assessment, he said “one of the key findings . . . was that there's an urgent need to internalize and communicate the seriousness of performance problems and engage the site in their strategy for improvement.” (p. 45)

Entergy Presentation

A team of Entergy (ANO’s owner) senior managers presented their action plan for ANO.  They said they would own their own problems, improve contractor oversight, identify their own issues, increase corporate oversight and improve their CAP.

With respect to culture, they said “We're going to change the culture to promote a healthy, continuous improvement and to not only achieve, but also to sustain excellence.” (pp. 70-71)  They are benchmarking other plants, analyzing ANO’s issues and adding resources including people with plant performance recovery experience. 

They took comfort from the SC assessment conclusion “That although weaknesses exist, the overall safety culture at ANO is sufficient to support safe operation." (p. 72)

In response to a question about important takeaways from the SC assessment, Entergy referred to the need for the plant to recognize that performance has got to improve, the CAP must be more effective and organizational programmatic elements are important.  In addition, they vowed to align the organization on the performance gaps (and their significance) and establish a sense of urgency in order to fix them. (pp. 80-81)

Our Perspective

Not to be too cynical, but what else could Entergy say?  When your plant is in column 4, a mega mea culpa is absolutely necessary.  But Entergy’s testimony read like generic management arm-waving invoking the usual set of fixes.

Basically, the ANO culture endorses a “blame the contractor” attitude, accepts incomplete investigations into actual events and potential problems, and is content to let the NRC point out problems for them.  Where did those values come from?  Is “increased oversight” sufficient to create a long-term fix?

ANO naturally gives a lot of weight to the SC assessment because its findings appear relatively simple and apparently actionable.   Somewhat surprisingly, the NRC also appears to give this assessment broad credibility.  We think that’s misplaced.  The chances are slim of such an assessment identifying deep, systemic cultural issues although we admit we don’t know the assessment details.  Did the assessment team perform document reviews, conduct focus groups or interviews?  If it was a survey, it only identified the most pressing issues in the plant’s safety climate.

Taking a more systemic view, we note that Entergy has a history of SC issues over many plants in its fleet.  Check out our Feb. 20, 2015 post for highlights on some of their problems.  Are ANO’s problems just the latest round of SC Whac-A-Mole at Entergy?

Entergy has always had a strong Operations focus at its plants.  The NRC’s confidence in ANO’s operators is the main reason that plant is not shut down.  But continuously glorifying the operators, particularly their ability to respond successfully to challenging conditions, is like honoring firefighters while ignoring the fire marshal.  The fire marshal role at a nuclear plant is played by Engineering and Maintenance, groups whose success is hidden (thus under-appreciated) in an ongoing series of dynamic, non-events, viz., continuous safe plant operation.  That’s a cultural issue.  By the way, who gets the lion’s share of praise and highest status at your plant?


*  “Briefing on Results of the Agency Action Review Plan Meeting,” public meeting transcript (May 21, 2015).  ADAMS ML15147A041.

The Agency Action Review Meeting (AARM) “is a meeting of the senior leadership of the agency, and its goals are to review the appropriateness of agency actions taken for reactor material licensees with significant performance issues.” (pp. 3-4)