ML17157A549
| ML17157A549 | |
| Person / Time | |
|---|---|
| Site: | Susquehanna |
| Issue date: | 01/22/1991 |
| From: | NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I) |
| To: | |
| Shared Package | |
| ML17157A548 | List: |
| References | |
| 50-387-89-99, 50-388-89-99, NUDOCS 9102110090 | |
| Download: ML17157A549 (57) | |
See also: IR 05000387/1989099
Text
ENCLOSURE
INITIALSALP REPORT
U. S. NUCLEAR REGULATORY COMMISSION
REGION I
SYSTEMATIC ASSESSMENT OF LICENSEE PERFORMANCE
REPORT NOS. 50-387/89-99; 50-388/89-99
PENNSYLVANIAPOWER & LIGHTCOMPANY
SUSQUEHANNA STEAM ELECTRIC STATION
UNITS 1 AND 2
ASSESSMENT PERIOD:
August 1, 1989 - November 30, 1990
BOARD MEETING DATE: January 22, 1991
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TABLE
F
ONTENT
I.
INTRODUCTION .....................................:
1
II.
SUMMARYOF RESULTS............
II.A
Overview
II.B
Facility Performance Analysis Summary
2
2
3
PERFORMANCE ANALYSIS..........
III.A Plant Operations
III.B
Radiological Controls ......:....
III.C Maintenance/Surveillance.........
III.D Emergency Preparedness
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III.E
Security and Safeguards..........
III.F
Engineering/Technical Support
III.G
Safety Assessment/Quality
Verification
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IV.
SUPPORTING DATAAND SUMMARY ...
IV.A Licensee Activities.............
IV.B
NRC Inspection and Review Activities .
IV.C
Significant Licensee Meetings ......
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IV.D Reactor Trips and Unplanned Shutdowns........................
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TABLE 1 - Inspection Hour Summary
TABLE2 - Enforcement Summary
TABLE 3 - License Event Report Summary
Attachment
1 - SALP Criteria
I.
INTROD
TI N
The Systematic Assessment of Licensee Performance (SALP) is an integrated NRC staff
effort to collect observations,
data and to periodically evaluate licensee performance on the
basis of this information.
The SALP process is supplemental to normal regulatory processes
used to ensure compliance with NRC rules and regulations.
SALP is intended to be
sufficiently diagnostic to provide a rational basis for allocating NRC resources
and to provide
meaningful feedback to the licensee's
management to improve the quality and safety of plant
operations.
An NRC SALP Board, composed of the staff members listed below, met on January 22,
1991 to review the collection of performance observations and data, and to assess
the
licensee's performance at the Susquehanna
Steam Electric Station.
This assessment
was
conducted in accordance with the guidance in NRC Manual Chapter 0516, "Systematic
Assessment of Licensee Performance".
The SALP Board for the Susquehanna
Steam Electric Station assessment
consisted of the
following individuals:
chairman
Charles W. Hehl, Director, Division of Reactor Projects (DRP)
~Mem er
W. Hodges, Director, Division of Reactor Safety (DRS)
M. Knapp, Director, Division of Radition Safety & Safeguards
(DRSS)
W. Butler, Director, Projects Directorate I-2, NRR
A. Blough, Chief, Projects Branch No. 2, DRP
G. Barber, Senior Resident Inspector, Susquehanna
M. Thadani, Licensing Project Manager, NRR
eh
d
P. Swetland, Chief, Reactor Projects Section 2A
J. Stair, Resident Inspector, Susquehanna
B. Westreich, Reactor Engineer, DRP
J. Durr, Chief, Engineering Branch, DRS
P. Eapen, Chief, Special Test Programs Section, DRS
W. Pasciak, Chief, Facilities Radiation Protection Section, DRSS
J, White, Chief, Nuclear Material Safety, Section C, DRSS
R. Keimig, Chief, Safeguards
Section, DRSS
J. Kottan, Laboratory Specialist, DRSS
J. Noggle, Radiation Specialist, DRSS
C. Gordon,
Sr. Emer Prep Specialist, DRSS
R. Albert, Physical Security Inspector, DRSS
K. Green, NRR
K. Brockman, Region I Coordinator, EDO
P. Ray, Performance Evaluation Branch, NRR
Q /
,2
MARY
F R
T
ILA
QWrview
Overall licensee performance was very good.
Strong management
support and oversight were
evident, and facility operations were conducted in a conservative,
safety conscious manner.
There was a continuation of superior performance in plant operations,
maintenance,
surveillance and security.
Noteworthy in these areas was the high quality of individual
performance,
and self assessment.
The overall quality of training programs also contributed
to strong performance,
even though some weaknesses
in program administration were noted.
Radiological controls performance was good.
While overall control of radiological activities
was effective, there were weaknesses
in contractor and contamination controls.
improved significantly during this period.
The full implementation
of position specific emergency response procedures,
and the excellent performance during the
annual exercise were noteworthy in the achievement of a superior rating.
Engineering and technical support activities were generally conducted in a high quality
manner.
However, slow evaluation and resolution of some recent and long standing technical
issues detracted from an otherwise strong standard of performance.
Strong safety assessment
and quality verification performance was marked by effective
strategic planning and follow through, and superior self assessment
programs.
3-
II.B
Facilit
Performance Anal
is Summa
~Fane i nal
Ratin
Trend
Last Period
Ratin
Trend
This Period
Plant Operations
Radiological Controls
Maintenance/Surveillance
Security and Safeguards
2, Improving
Engineering/Technical
Support
2
Safety Assessment/
Quality Verification
1, Declining
Previous Assessment
Period:
Present Assessment
Period:
February
1, 1988 to July 31, 1989
August 1, 1989 to November 30, 1990
III.
PERF
RMAN E ANALYSIS
III.A
P~l
The previous SALP report rated performance in operations as Category 1.
That assessment
concluded that the operating staff continued to display strong management involvement and
was aggressive in dealing with plant problems.
Operators'onservative
approach to nuclear
safety was a significant strength.
Good training and staffing levels were in place, as
evidenced by the fact that there were very few operator-induced. events.
During this assessment
period, operators continued to maintain a strong safety perspective and
were well-trained and qualified.
Professionalism
was apparent in everyday activities.
Procedural adherence is mandated and receives significant management
emphasis.
Operators
were effective at monitor'ing and controlling plant activities and evolutions.
They also
exhibited thorough knowledge of the plant by identifying and responding to plant problems
and transients correctly and expeditiously.
For example, operator response to an uncontrolled
heatup transient during a Unit 1 outage in February 1990 was very thorough and focused on
termination of the heatup.
In addition, operators rapidly identified and terminated an
unanticipated actuation of the Reactor Core Isolation Cooling System at Unit 2 in May 1990,
thus limiting the power excursion.
In July 1990, the operators'otating
shift schedule was changed from an 8-hour shift to a 12-
hour shift to improve long-term operator performance on shift. The licensee conducted a
survey of industry experience with the use of 12-hour shifts and hired a consultant to educate
employees and their spouses
on the effects of 12-hour shift work.
Operator feedback on the
new shift schedule has been very positive.
The change has eliminated the use of,split shifts
to fillin for unplanned absences
and has reduced overtime use by operations.
Changes occurred in the licensee's upper level management
organization during the period.
The plant superintendent
was promoted to Vice President, Nuclear Operations,
and the
Assistant Superintendent for Outages was promoted to Plant Superintendent.
The fillingof
the previously vacant Vice President position has increased management's
interaction at all
levels and is viewed as a positive action.
These changes have continued an emphasis on high
quality operations.
Direct involvement by middle management
and upper management
was
frequently observed in the plant.
Corporate management visited the site frequently and was
found to be very involved with emerging plant issues.
5
There was one automatic scram on Unit 1 and two automatic scrams on Unit 2 during the
SALP period (see Section IV.D). None of the scrams was attributed to operator error.
One
scram on each Unit was attributable to unrelated problems in the offsite switchyards and the
other Unit 2 scram was due to a failed feedwater level controller transmitter.
Operator
response following these scrams was excellent.
In each case, the emergency operating
procedures
(EOPs) were used to effectively stabilize the plant in hot shutdown.
Licensee
corrective actions have improved control of activities in the offsite switchyards.
The operator training programs were well designed, implemented,
and strongly supported by
both training management
and line management.
However, some weaknesses
were noted.
The most significant program weakness allowed two operators who failed requalification
examinations to return to licensed activities prior to retraining and successful retesting.
This
weakness was subsequently corrected by the licensee.
The NRC administered requalification
examination in January
1990 resulted in eight of the ten reactor operators (ROs) and all of the
ten senior reactor operators (SROs) passing the examination.
(The two ROs who failed
subsequently
passed
an NRC administered requalification examination in April 1990).
The
requalification program was determined to be satisfactory.
Allsix ROs passed
the initial
examination administered in April 1990, as did two of the three SROs.
The Susquehanna
EOPs were generally acceptable,
although some weaknesses
were noted.
Suppression
chamber pressure indication was not available in the control room and was
difficultto interpret for use as a decision point in the EOPs.
The licensee took prompt action-
to assure that operators were aware of this safety significant issue and subsequently performed
short- and long-term corrective actions regarding suppression
chamber pressure indication.
Another noted weakness
was slow implementation of several actions directed by the primary
containment control EOP.
Continued simulator fidelity problems were also a particular-
concern.
However, the licensee has initiated action to place a new state-of-the-art simulator
in service by September
1992, in parallel with certifying the current simulator.
Notwithstanding these items, the EOPs can be performed successfully in the plant.
An
identified strength was the success of the licensee's training program in training the operators
to use the EOPs in the control room and the plant.
The licensee's initial response to the EOP
inspection did not include prompt corrective action, for some short term items and therefore
required an additional response.
Housekeeping of the plant was excellent.
The licensee continued to expend significant
resources to maintain a clean and well kept plant.
On every shift, two or three people
cleaned the plant on a full time basis.
The licensee continued to implement a vigorous
painting program to upgrade the permanent appearance of the plant. A new labeling program
for equipment and flowpaths provided a marked improvement in identification of system
components and flow directions.
During the period, the licensee's control of transient
equipment and material continued to be a problem.
Unsecured equipment and material were
occasionally observed in the plant.
Although corrective actions are in progress,
implementation has been slow.
Overall, howevder, housekeeping
was a licensee strength.
During the previous SALP period, the number of outstanding fire watches needed to
compensate for degraded or ineffective fire protection barriers, seals and equipment was a
noted weakness.
During the current period, the licensee expended significant efforts to
resolve these equipment deficiencies and to reduce the number of fire watches.
During 1990,
the number of fire zones requiring hourly fire watches was improved from about 190 to about
40.
This reduction in affected fire zones reflects good progress toward recovering from
previous weaknesses
in fire protection performance.
Overall, the licensee's fire protection
program was found to be well-managed and adequately staffed with experienced
and
knowledgeable personnel.
In summary, the licensee has demonstrated
continued strong performance in the area of plant
operations.
Aggressive management involvement in operational activities was noted at both
the corporate office and the site.
The plant continues to operate safely and effectively.
The
licensee's training programs are very good and operator staffing is excellent.
There were no
scrams due to operator error.
Operational problems did'ccur, but the operators dealt with
them in a prompt and effective manner.
Overall, plant operations is a significant licensee
strength.
Perform nce Ratin:
1
~d'
III.B
~Rdh
I
The radiological controls program was assessed
as Category 2, with an improving trend
during the previous SALP period.
The program was considered to be effective. A good
level of management involvement and support for resolving previously identified problems
was noted.
The internal and external exposure controls programs, including ALARAefforts,
were of good quality and effectively implemented.
The effluent monitoring and control
'rogram was effective.
There was a need for continued management attention to the control
of contaminated material.
A well defined and staffed radiation protection organization was in place.
The organization
was effectively augmented during the outages with properly trained and qualified contracted
personnel.
An appropriate level of supervisory oversight of the augmented organization was
maintained.
The radiation protection organization has remained stable and several inter-
departmental interface positions (e.g. Maintenance Drywell Coordinator, Outage Scheduler,
and Radiological Controls Consultant) have been added.
The addition of these positions has
improved communications between the radiological control groups and the station's other
functional groups.
Added management oversight has been achieved by dividing the Radiation
Protection/Chemistry Group into separate radiation protection and chemistry groups.
The licensee's overall training and qualification program for radiation protection personnel
and radiation workers was found to be of good quality. No deficiencies were identified
which reflected inadequacies in the training and qualification program.
Special control point
instructions were developed to provide additional guidance for controlling access to
radiologically significant work activity areas.
Late in this assessment
period, NRC review
found that there were only limited administrative controls over the duties performed by
radiation protection technicians to ensure the assignment of only qualified personnel.
Also,
there was no clear guidance as to what constitutes acceptable "equivalent" experience for
commercial nuclear power experience when qualifiying contractor radiation protection
personnel.
The licensee initiated a review of these issues.
1
During the previous assessment
period, the licensee experienced continued problems with the
control of radioactive material.
Since then, the licensee has essentially eliminated any
inadvertent release of contaminated material from the radiological controlled area (RCA). A
computerized tool accountability program has been implemented along with many procedural
modifications.
An isolated event involving the improper release of a tool was quickly
identified by the accountability program and rectified.
Overall, the licensee has implemented an effective external and internal exposure control
program.
The licensee was sensitive to industry events. For example, as a result of a spent
fuel pool personnel exposure event at another station, the licensee required the use of
alarming dosimeters around the spent fuel pools.
The licensee also used alarming dosimeters
for personnel radiation exposure control in the Drywell. Personnel exposure reports were
published at least daily providing good control over the accumulation of personnel exposure.
The licensee demonstrated
good overall control of airborne radioactivity.
Radiation
protection work practices were generally well performed and controlled.
Some isolated
problems (e.g., lack of documentation of surveys and a worker not adhering to radiation
protection and confined space postings) were immediately evaluated and corrected by the
licensee.
There were weaknesses
with contamination control practices (e.g., the potential for cross
contamination of personnel;
and hoses and lines extending from posted contaminated
areas
into clean areas).
Contamination events were of minor significance but indicated lack of
I
worker attention to proper contamination control practices.
The licensee was pursuing
improvements.
A significant, isolated external exposure event occurred early in the period and involved an
unplanned radiation exposure to a small area of the chest of a contractor chemistry technician.
The contractor technician carried an unsurveyed, highly radioactive reactor coolant filter
sample in his shirt pocket for a short period of time.
Although no overexposure occurred,
the event revealed significant weaknesses
in the licensee's control of contractor work
activities.
Subsequent NRC and licensee reviews of the unplanned exposure event identified
failures of multiple exposure control barriers (e.g., radiation work permit controls and
supervisory and management
reviews) which contributed to the occurrence of the event.
The
licensee took aggressive actions to assure the program deficiencies were corrected.
Control
of contractors has been 'significantly enhanced
since this event occurred.
The licensee
evaluated the management control of all contractors on site and issued a special procedure to
provide guidance for control of contractors.
Audits of the radiation protection program continued to be of very good quality. Various
audit perspectives
were obtained from such diverse groups as the corporate radiation
protection group, the station quality control department and from outside industry experts.
The audits were performance-based
and reflected good management involvement with the
radiation protection program.
A high degree of corporate and station management involvement in ALARAgoals was
evident.
Although the implementation of the ALARAprogram was good, there were
weaknesses
in the scope of ALARAtraining for maintenance personnel and in station wide
publicity of the ALARAprogram.
The ALARAgroup=had early involvement in,station
planning activities and complete access
to all scheduled work packages.
Emergent work
received appropriate ALARAreviews.
Exposure goals were developed for individual
departments
and jobs and were considered reasonable.
Repair of Reactor Water Clean-Up
(RWCU) pump seals in both units has accounted for a large percentage of the maintenance
personnel exposure for the last two years.
In part due to ALARArecommendations,
the
current pumps are scheduled to be replaced with seal-less pumps, but not until 1992.
The licensee had in place an effective program for the control of radioactive gaseous
and
liquid effluents.
In addition, the radiological environmental monitoring program (REMP)
was found to be effectively implemented.
Procedures for both the radioactive effluent
monitoring and control program and the REMP were detailed and well written and procedural
adherence
was excellent.
Expertise was available within the chemistry department management
and staff to effectively
conduct the radiological effluents program.
The reorganization of the radiation protection/
chemistry group, discussed earlier, appeared
to enhance the ability of the licensee to
effectively manage the program.
At the end of the assessment
period, the licensee was in the
process of qualifying an individual as the new Chemistry Supervisor.
QA audits of the effluent and environmental monitoring programs were thorough, of excellent
technical depth, and of sufficient scope to identify programmatic problems in these areas.
Overall licensee performance in these areas was considered to be excellent.
QA audits and surveillances of the solid radioactive waste and transportation program were of
excellent scope and technical depth.
The quality assurance program in the solid radwaste and
transportation area was a noted strength.
Also notable in this area was the licensee's
excellent training program for radwaste personnel.
'uring this assessment, period, the licensee identified an under-reporting of the quantity of
radioactivity in shipments of dewatered resins from 1984 to 1990.
This event demonstrated
an isolated, but significant lack of radwaste transportation program oversight and attention to
detail, but was not indicative of an overall programmatic breakdown.
The NRC has not yet
reviewed licensee long term corrective actions for the problem.
Overall, the licensee's
performance in this area was considered to be good.
In summary, management involvement and control in assuring quality was apparent.
With
the exception of the radwaste classification issue the licensee aggressively pursued the
resolution of technical issues,
and the resolution of previously identified problems was
excellent.
The enforcement history in this functional area has been acceptable with two
isolated problems detracting from an overall effectively implemented radiological controls
program.
No significant operational events,
attributable to poor performance in the area of
radiological controls, occurred this assessment
period.
Staffing in all radiological controls
areas was good.
The licensee's overall training program for permanent and contractor
radiation protection personnel was also good.
2~
2B:
2
B~d
The licensee maintained effective radiological controls programs.
This rating does not
reflect a decline in performance, but the trend of improvement during the last SALP
period was not sustained at the previous rate and performance did not achieve the
previous expectation.
10
III.C
Maintenance/
urveillan
'he previous SALP report rated the licensee's performance in the combined Maintenance/
Surveillance functional area as Category 1.
The maintenance
and surveillance programs were
properly established
and implemented.
Both organizations were staffed with well qualified
and skilled individuals.
Surveillance and maintenance of safety-related components and
systems were rigorous as evidenced by no automatic scrams from either activity.
The maintenance program is well organized, and the licensee has demonstrated
good
performance in this area.
Both unit and individual system availability have been maintained
at a high level.
Mid-level and,senior site management involvement with plant maintenance
activities was apparent throughout the period.
Foremen supervised daily maintenance
activities and problems to assure that they were properly tracked, prioritized and resolved.
Daily planning meetings demonstrated
the ability of plant management to adjust priorities and
to effectively coordinate ongoing woik activities with newly identified problems requiring
maintenance.
Interaction with plant operations occurred on a daily basis in order to schedule
work activities and assure that coordination with operations and other groups was established.
Preplanned
schedules were used whenever possible to control activities.
An evolving package
of preplanned maintenance
was kept up to date during power operations in case a forced
shutdown or automatic scram occurred.
The licensee emphasized
the importance of forced
outage maintenance by extending unplanned shutdowns for up to seven days to complete
preplanned forced outage activities.
Administrative controls over procurement, receipt,
inspection, storage and issuance nf materials were effective for 'ensuring the availability of
materials when needed for routine or emergency maintenance activities.
The licensee has established long term maintenance programs in order to preserve the life
extension option for Susquehanna.
Program enhancements
which were identified for the long
term include, better use of predictive maintenance;
continued efforts to integrate reliability
centered maintenance concepts into the maintenance process;
and the on-going implementation
of a preventive maintenance improvement program.
X
A significant strength of the maintenance organization was its stable and well trained staff.
Maintenance activities were generally found to be properly authorized and conducted in
accordance with written instructions/procedures.
The maintenance training program was
effective and demonstrated well defined qualification criteria for maintenance personnel.
The
tracking system used for qualification of personnel has been improved since the last SALP
period and the licensee has committed to accelerate completion of formal personnel training
and certification.
When a supplemental work force was necessary
during outages,
the
licensee had an effective program for control of contracted maintenance personnel.
Individual work groups were responsible for assuring that contractor personnel working with
11
their groups had appropriate training and qualifications for the jobs they performed.
Licensee
actions were found to be effective at processing a large contractor maintenance force for
outages.
During the assessment
period, Susquehanna
completed two refueling outages and
several'orced
outages.
The maintenance planning and outage organizations functioned exceptionally
well in scheduling all required tasks and coordinating the team work required of the different
work groups to accomplish those tasks.
Two engineered
safety system actuations resulted
from maintenance related activities during the Unit 2 refueling outage.
In addition, a scram
signal resulted from maintenance activities while shutdown during this outage.
No rod
motion occurred from the signal since all rods were fully inserted.
These events were caused
by personnel errors and procedural deficiencies that were promptly corrected.
Preliminary results from a maintenance
team inspection confirmed that the maintenance
program was well described and adequately implemented.
Good availability and equipment
operability indicate that the maintenance process was effective.
Corporate and station
management
support of the maintenance process was evident in five-year plan program goals;
in adequate fiscal allocations and trained manpower; and in maintenance facilities, equipment,
and spare parts availability.
Weaknesses
identified by the maintenance
team included
inadequacies in performing and documenting 50.59 reviews, delays in performing periodic
maintenance procedure review, poor preplanning of a HPCI turbine six year inspection, and a
failure to follow some work procedures.
Overall, the material condition of the plant was well
maintained.
Licensee management
is effectively using performance indicators to assess
maintenance
and to
address unacceptable
trends.
The licensee uses PRA techniques to assess
and modify plant
design and operations.
Although a comprehensive
risk-based maintenance prioritization
system is not yet in place, the licensee is proceeding toward this goal.
QA surveillance of mainten'ance activities was adequate
and effective in identifying program
implementation deficiencies.
QA audits were found to be thorough as evidenced by the,
quality of audit findings and observations documented in audit reports.
The'QA/QC groups
were active in maintenance activities, including the work authorization process.
In contrast,
the licensee's correction of some nonconformances
and deficient conditions was slow, and in
some cases, took years (See section III.G for details).
The licensee's electrical maintenance program was adequately staffed with experienced
and
knowledgeable personnel.
The effectiveness of the electrical maintenance program was
evidenced by few circuit breaker failures.
However, the licensee's maintenance
management
was not always aggressive in resolving issues promptly. For example, it was previously
12
identified that the licensee did not have adequate breaker testing program for 480 volt
breakers.
Actions to resolve this concern included only a tentative schedule to complete a
breaker testing program by the end of third quarter 1991.
In general, supervisory oversight and procedural control of maintenance activities was very
good.
However, a noted lapse in this performance was evident when sandblast material was
introduced into the air intakes of two diesel generators.
Although this appeared to be an
isolated case, it was considered to be significant because of its common mode failure
potential.
In addition, procedures
used for a six year inspection of the HPCI turbine lacked
detail commensurate with the evolution's safety significance.
The HPCI inspection was
completed satisfactorily.
The surveillance program was effectively managed
and implemented throughout the
assessment
period.
A computer-based
system scheduled the necessary
surveillance tests
and tracked them effectively. This system assured good coordination between Operations,
Maintenance, Radiation Protection, Chemistry, and Instrumentation and Control personnel for
the performance of the surveillance program.
The successful implementation of this program
and the cooperation of the departments involved were strengths of the surveillance program.
No automatic scrams or transient events occurred as a result of surveillance related activities
during the period.
However, three safety system actuations of minor consequence
and one
Reactor Core Isolation Cooling (RCIC) initiation occurred during the performance of
surveillances.
Three of these actuations were directly attributable to personnel errors, and
one was due to a procedural deficiency.
The licensee took action to assure that appropriate
corrective actions were taken.
Considering the large number of surveillances performed in 16
months of two unit operation and refueling outages,
these cases represent a very small
fraction of the total number of surveillances performed.
Overall, conduct of the surveillance
program was excellent.
In-service testing /ST) performance was good.
The IST program successfully monitored the
performance of pumps and valves throughout the plant and adequately documented
age-'elated
degradation.
During the assessment
period, the licensee's in-service inspection gSI)
program was well planned and implemented.
One weakness was noted in the ISI area.
The
licensee failed to provide adequate ISI contractor and procedural controls, which led to a
plant start-up with a potentially unacceptable
ultrasonic indication in the reactor vessel.
The
indication was subsequently
evaluated and found to be insignificant.
The licensee took
appropriate corrective actions to prevent the recurrence of this problem.
The examination
program for the detection of intergranular stress corrosion cracking also exhibited some
4
13
weaknesses;
however, prompt action by the licensee resolved these deficiencies. Staffing
levels, including the use of ISI contractors were good.
Overall, licensee ISI personnel and
contractors were found to be well-qualified in performing ultrasonic testing.
In summary, the licensee has carried out successful maintenance and surveillance programs,
although some weaknesses
were identified.
These programs were adequately scheduled,
planned, and implemented.
A strong management commitment was evident in conduct of
maintenance
and surveillance activities.
Minor weaknesses
in the maintenance
area were due
to personnel errors and procedural deficiencies.
The surveillance program was generally very
good.
Perf rmance Ratin
1
ar
mment'one
III.D Emer enc
Pre aredne
During the last SALP period, Emergency Preparedness
(EP) was rated Category 2, a decline
from the previous assessment.
Strengths were noted in the areas of coordination with offsite
authorities and in the use of the simulator to stage the control room portion of the 1989
exercise.
Weaknesses
were identified during this exercise, particularly with regard to the
formulation and issuance of timely protective action recommendations,
and an incomplete
update of Emergency Plan Implementing Procedures
(EPIPs).
An additional concern
involved the lack of distribution of independent audit reports to the state and local agencies.
In this SALP period, the licensee performed well during the annual partial participation
exercise.
Changes in plant conditions were readily observed by the shift staff and were used
to properly classify emergency conditions. The licensee completed development of new
Position Specific Procedures
(PSPs) for each designated emergency response position so that
a separate procedure can be used by each emergency response organization (ERO) staff
member.
The PSP's received both peer and management review before implementation.
Personnel effectively used PSP's to execute response actions.
No performance weaknesses
were identified during the exercise and only minor improvement areas were noted.
Emergency response facilities were maintained in an excellent state of readiness.
The ERO
was fully staffed and trained in key response functions.
EP staffing has remained stable
throughout the period to effectively maintain major program functions.
Management was
supportive of EP activities and demonstrated
a clear understanding of relevant issues affecting
the program.
Senior managers are kept apprised of EP program activities through formal
14
meetings with the EP staff.
Key management
and technical staff at the site and corporate
office are assigned emergency response functions and have maintained ERO. qualification.
Emergency response training has been effective in general employee training as well as
'ualifying
individual members of the ERO to perform response functions,
Course
requirements
necessary
to satisfy each emergency position are subject to management
involvement and approval.
Lesson plans for ERO training were adequate but not completely
updated to correspond to the PSP's.
Independent quality assurance
audits were performed using a detailed audit plan and were
=
found to be adequate in scope and provided a thorough review of EP activities.
Results of
audits were reviewed by corporate and plant management who ensured that audit results were
properly addressed
and that significant deficiencies were given priority. The audit reports
were properly distributed.
Corrective actions on recommendations
identified during audits
and self-assessinents
were timely.
During this period, the licensee responded well to an actual plant challenge requiring
activation of the Emergency Plan'.
In February 1990, the licensee properly classified an Alert
due to a loss of shutdown cooling which resulted in reactor coolant temperatures
exceeding
200 degrees F.
Activation of the Technical Support Center (TSC) was prompt and was
completed prior to exceeding the Alert initiating condition.
Operators demonstrated
good
knowledge of Abnormal Operating Procedures
used to provide an alternate means of decay
heat removal and with EPIPs used to carry out event response.
The licensee's self-critique of
the response identified a significant concern regarding their ability to promptly activate the
Media Operations Center (MOC) to provide timely transmission of plant status information to
the public. A task force was formed to evaluate and address this concern and propose
corrective action to prevent recurrence.
Overall implementation of the Emergency Plan
during the Alert was effective and well coordinated.
In summary, performance has improved since the previous assessment
and an effective EP
program was implemented throughout this period.
Involvement of management in the quality
of both onsite and offsite program activities was evident.
Actions taken for previous
weaknesses
were effective. The training program is well defined and organized and ERO
personnel were well qualified.
Implementation of the recently developed PSPs has
significantly enhanced
response capability.
ERO performance in the annual exercise was
excellent.
Response activities during an Alert were effective, with the exception of timely
activation of the MOC.
~fR
~d:
N
15
III.E
ecuri
and
afe uard
During the previous assessment
period, the licensee's performance was rated as Category 1,
as it has been for all previous assessment
periods in this functional area.
That rating was
based on a highly effective and performance-oriented
security program, an excellent
enforcement history, experienced security supervisory personnel and a high degree of
management involvement, in and support for the program.
The licensee's high level of performance during the previous assessment
periods was also
sustained during this period.
Upgrading and enhancement of systems and equipment
continued., In particular, some aging package and personnel search equipment and security
vehicles were replaced with state of the art equipment.
Additionally, the licensee continued
to maintain (1) a well planned and integrated security program utilizing well-trained
personnel;
(2) an effective and well-supported testing and maintenance program as evidenced
by a short turn-around time for equipment maintenance,
an excellent on-line availability
record for security equipment, even for some aging equipment, and the absence of equipment
related events requiring reports to the NRC; and (3) an excellent working environment for
security personnel
as evidenced by, in particular, the clean and well maintained access control
centers, security office areas, security training center, alarm stations and security vehicles.
Plant and corporate management continued to be actively involved in security matters as
evidenced by excellent support for and cooperation with security program implementation,
upgrade enhancements,
security personnel training and participation in industry groups
involved with nuclear security matters.
Site security management
and staff are well-trained
and highly qualified professionals who have been vested with the necessary authority and
discretion.,and who ensure that the security program is implemented effectively and in
compliance with NRC regulations.
Corporate security management continued to be actively
involved in all site security program activities and continued to conduct various surveillances
and reviews of on-site security readiness
to ensure that a high quality and effective program
was being implemented.
Site and corporate security management
also continued to actively
participate in industry groups engaged in nuclear plant security matters.
They also.
maintained excellent rapport and effective communication channels with the plant staff who
exhibited an excellent attitude toward the program.
Staffing of the security force was consistent with program needs as evidenced by the minimal
amount of overtime required to support the program and the adequate off-shift time available
to provide the security force members with effective training.
The allocation of adequate
resources to provide for an effective security force has resulted in a minimal number of
personnel errors and an excellent enforcement history.
1
Audits of the security program conducted by the licensee's QA Group, and surveillance
conducted by the Corporate Security Staff, were found to be comprehensive
and
thorough.'indings
of the audits and surveillance were directed toward refining and enhancing the
16
program and no major deficiencies were noted.
Corr'ective actions were always prompt and
effective with aggressive follow-up to insure proper implementation.
A review of the licensee's security event reports and reporting procedures found them to be
well understood by security supervisors and consistent with NRC regulations.
There wei'e no
events requiring a prompt reporting during this period.
Other events were found to be
promptly logged, appropriately tracked, with corrective action specified, as necessary.
The licensee security training program was administered by four full-time and highly
qualified instructors with full-time administrative support.
The program as administered was
well-structured, maintained current and exceeded
the requirements of the NRC-approved
Security Force Training and Qualification Plan.
The security training facilities were well
maintained and training was conducted utilizing excellent lesson plans and state-of-the-art
training aids for hands-on-training.
Security management
also instituted a tactical training
program for the armed security force members during this assessment
period.
The licensee's
training program is aggressive and has resulted in security force members being very
knowledgeable of their duties, contents of procedures
and overall responsibilities.
During this assessment
period the licensee implemented a Fitness-for-Duty (FFD) program in
response to new NRC requirements.
The licensee's FFD program development and
implementation were found to be responsive to both the spirit and intent of the NRC's FFD
rule.
The licensee also submitted three changes to the security plan under the provisions of 10 CFR 50.54(p) during this assessment
period.
These revisions were of high quality, technically
sound and reflected well-,developed policies indicating a comprehensive
and thorough
understanding of the NRC's performance objective for nuclear power plant security.
In summary, the licensee continued to maintain a highly effective and performance-oriented
program.
Management, attention to and support for the program are clearly evident in all
aspects of program implementation.
The efforts to upgrade some security systems and
aggressively maintain other aging equipment were commendable,
and demonstrated
the
licensee's commitment to a very effective and high quality program.
The security training
program was dynamic and very well administered.
In addition, the licensee's FFD program
met the spirit and intent of the FFD rule.
B~d'
17
III.F
En ineerin /Technical
In the previous SALP report, Engineering and Technical Support was rated as Category 1,
with an overall conclusion that the licensee demonstrated
a high quality engineering program.
No significant deficiencies had been identified in this functional area.
Positive factors were
noted in the following areas:
system engineering/technical
support, management involvement
in the plant modification process,
assessment
and development of probabilistic risk concepts,
and a motivated and highly,qualified engineering staff.
During the current SALP assessment
period, the licensee's engineering organization provided
sound technical resolution of many safety significant issues.
For example, engineering
review of a suppression pool-to-drywell vacuum breaker modification already installed on
Vnit 1 identified that a flow limiting orifice had been omitted during the original design
change.
When analyses indicated that potential damage could result during vacuum breaker
operation without the orifices, a prompt shutdown and repairs were completed.
In another
case, prompt and effective evaluation of extensive corrosion in one RHR pump motor cooler
resulted in timely and conservative replacement of all these coolers on both units.
Licensee
identification of and timely response
to these safety concerns indicated thorough engineering
involvement and a conservative approach to plant problems.
Effective engineering was also evident in support of other plant problems.
For example,
when a control rod could not be inserted during a weekly control rod surveillance, the
licensee developed a special test with the vendor's concurrence that was able to free the
'ontrol
rod.
In another case, low flow to ce'rtain emergency service water (ESW) coolers
was noted.
A licensee evaluation with significant involvement of the system engineers,
identified that the flow reduction was due to silt buildup in the lines.
Good engineering
direction and technical competency were displayed in support of the silt flushing, and in the
ESW flow balance performed.
The frequency of silt flushing was temporarily increased in
order to prevent blockage from silt buildup.
Subsequently,
modifications were made which
allowed various valves to be fully opened while other valves were left throttled to prevent the
potential for silt buildup.
These licensee actions were prudent.
Management involvement in the mo'dification process continued to be evident.
Administrative
procedures which control the modification process and plant configuration control were
thorough and effective.
Both Resident Engineering and Corporate Nuclear Engineering
departments were involved in planning and prioritization of plant modifications.
Modification
packages were well organized and included detailed design descriptions which contributed to
successful installations with little or no followup work required.
Good communications were
maintained between corporate engineering and all other plant support organizations during
modification planning.
Review of nuclear plant engineering work practices indicated that the
engineering work activities were being prioritized and executed according to appropriate
procedures
to support the plant and licensee needs.
l
'
18
During this assessment
period, the NRC conducted an electrical distribution system functional
inspection (EDSFI) to determine ifthe electrical distribution system would be capable of
performing its intended'afety function as expected,
and to assess
the licensee's engineering
and technical support of the electrical distribution system.
The licensee mounted a significant
engineering effort to prepare for the EDSrI, and as a result, was well prepared and provided
significant assistance
to the NRC team during the inspection.
A strong resource commitment
was evident.
The licensee had aggressive self assessment/audit
programs which have
identified many technical and programmatic concerns regarding the electrical system.
However, some of the concerns had not been fully evaluated or corrected in a timely manner.
In addition, several instances were identified where operability/reportability reviews had not
been completed in accordance w'ith the applicable procedures.
Although engineering support was generally good, some errors in design changes occurred.
In addition to the omission of flow orifices during the Unit 1 vacuum breaker modification, a
modification to the full flow test valve for RCIC and HPCI flow surveillances prevented
achieving adequate flow in the test line at a reactor pressure of 150 psig.
This modification
permitted full flow at 920 psig, but due to an engineering oversight, the higher head loss
effects during the 150 psig surveillance test were not considered.
This modification did not
affect the flow path for actual injection.
There were instances where engineering failed to address causal factors and implement timely
corrective actions.
For example, in February,
1990, a loss of shutdown cooling with reactor
coolant temperatures
exceeding 200 degrees F was caused by a recurring power failure
problem from a poorly designed electrical insulator.
Two Emergency Diesel Generator (DG)
crankcase overpressurizations
occurred in September and October 1990 due to an assortment
of conditions associated with DG operating and test conditions, as well as design.and
maintenance factors, the collective impact of which were not clearly understood.
The
licensee committed significant resources to ensure long lasting corrective action for both the
problems.
In addition, reactor water cleanup (RWCU) pump seal failures have been a
- continuing problem.
Accordingly, resources are also being allocated for the RWCU pump
seal problem.
The licensee's approach to these and other engineering problems emphasized
a
prolonged, methodical identification of the root cause without promptly addressing potential
causal factors in parallel.
The net result of this approach was untimely resolution of
engineering problems in some cases.
However, once management
focuses support on
resolving a problem, it gets prompt attention and comprehensive resolution.
Licensee review of conditions that were potentially outside the plant design basis was a
significant NRC concern during the period.
A number of these conditions identified by the
licensee were not fully analyzed, compensated for and/or reported to the NRC in a timely
" manner.
These include the potential inadequacy of electrical distribution design calculations,
potential electrical distribution system single failures that could overload DGs, and design
deficiencies in the leak detection system and the inboard main steam isolation valves.
Resolution of some problems was not always managed effectively, and corrective actions
19
were often slow in implementation.
In response to the need to address reportability and
correction of engineering problems, an engineering deficiency reporting (EDR)'ystem was
developed and implemented.
The EDR program was intended to capture these and other
deficiencies and to provide prompt operability/reportability evaluations as well as a focused
approach to resolution.
Many significant issues were reviewed under the EDR program with
inconsistent results.
In response,
the licensee made several significant changes to the EDR
. process which appear to have resolved the earlier problems.
The licensee made good
progress in implementing the EDR program which has improved their timeliness in reviewing
engineering issues.
There were concerns with the licensee's resolution of environmental qualification (EQ)
deficiencies such as the polyurethane damper seals in the standby gas treatment and direct
expansion cooling units.
In addition, EQ "related nonconformance reports including 64 motor-
operated valves in the reactor building were not adequately dispositioned, and many of the
qualification issues existed for several years.
Although management
attention to EQ was a
weakness identified in the 1986-1988 SALP, the effectiveness of corrective actions had
apparently not been long-lasting.
However, improvement has been noted in the licensee's
recent resolution of these engineering issues.
The lack of prompt disposition and correction of some of these issues appeared
to result from
the misclassification of the safety significance of these matters.
The licensee placed heavy
emphasis on the perceived small probability of occurrence of some events or the expected
satisfactory outcome of incomplete reanalyses to justify interim operation with the existing
discrepancy.
There was less focus on the potential adverse consequences
should the event
occur.
On this basis, concerns perceived to be of low safety significance received low
priority on completion of reanalyses
and corrective action, and on final operability/
reportability determinations.
During the latter half of the period, the licensee has taken
action to effect positive changes in their approach to safety significant issues.
Currently the
licensee has redefined safety significance to better focus on the potential adverse
consequences
of failures, even those of very low probability.
The licensee is supportive of industry standards groups, BWR owners group 'efforts, and
professional society participation.
In addition, the licensee
s engineering groups were well
trained, and staffed with sufficient personnel of all engineering disciplines.
About a third of
all the licensee's engineering work is normally performed by contractors and consultants.
Contractor involvement is currently higher than normal due to support for the EDSFI, design
basis reconstitution efforts and a future power uprate request,
The licensee's Operational
Effectiveness Review determined that the efficiency of engineering support could be improved
by reducing the number of separate support groups which currently exist.
In summary, the quality of engineering support provided by onsite and offsite engineering
groups was good.
The licensee's
management
and engineering staff were knowledgeable and
technically competent and the engineering effort was directed toward plant safety.
Design
20
problem issues were self-identified by the licensee and corrective actions were taken to
address them.
Timeliness of evaluation, reporting and resolution of identifie'd problems was
an NRC concern during the period.
Engineering deficiency management
has been the focus
of increased licensee attention and improvement was noted.
Rmdd
This lower performance rating reflects the more comprehensive
focus during this
period on several engineering concerns,
and on weaknesses
in the management
controls which resulted in prolonged resolution of many long-standing technical issues.
III.G
afet
As e
ment/
u li
Verificati n
During the last assessment
period, this area was rated Category 1, with a declining trend.
Licensee strengths included a strong safety attitude, an effective strategic planning tool in the
Managing For Excellence program, and well-developed probabilistic risk methodologies
available to prioritize maintenance efforts and to quantify operational risks inherent with the
plant design.
Weaknesses
were also noted including inadequate contractor training on safety
concern programs, too many uncorrected fire protection deficiencies, coordination and
tracking of maintenance personnel through their training programs, and lack of full
participation by designated
security personnel at fire brigade drills.
During the current assessment
period, the licensee has effectively corrected the previously
identified weaknesses
in this area.
New procedures were written on safety concern resolution
and the licensee implemented special training for all employees to emphasize the proper way
to present and process safety concerns.
The licensee reduced the number of required fire
watches throughout the units by completing Appendix R modifications and correcting other
deficiencies.
In addition, maintenance personnel qualification was more visible. The licensee
displayed qualification status in a more prominent location to ensure that work willbe
performed by qualified personnel and also emphaiszed
the timely completion'of maintenance
worker qualification. Finally, a tracking process that assures that security personnel attend
the minimum required number of fire drills has been implemented.
This new tracking
program has assured full attendance by security personnel at drills and training.
Licensee management
continues to take an active role in assuring safe operation of the two
units.
Corporate management visits the site frequently and actively participates in plant
activities during these visits. During the current SALP period, the licensee conducted an
operational effectiveness review (OER) to review the structure of the organization and seek
changes to increase the productivity, eliminate redundant functions, and ensure functional
efficiency. The adoption of the OER program was indicative of the corporate focus on self-
21
assessment.
Station supervision also contributed to the high quality of plant activities through
routine day-to-day oversight at work sites, effective daily coordination meetings and
maintenance of high expectations regarding operational safety perspective.
The licensee continued to use its safety review committees as effective tools in assessing'and
improving plant operation.
During this assessment
period, the nuclear safety assessment
group- (NSAG) conducted thorough and extensive evaluations of plant operations,
maintenance
and outage safety.
The NSAG also performed a self-assessment
of previous plant
performance to ensure safety significant issues were being properly addressed.
These NSAG
activities have provided a significant contribution to the assurance of safety at Susquehanna.
The licensee's staff was generally well prepared and technically correct when discussing
emerging safety issues with NRC licensing.
NRC comments on licensee technical resolutions
were given due consideration before providing licensing submittals.
The licensee has an
actions tracking system which effectively monitored the progress of resolution of all pending
safety issues.
The licensee is proactive and plans its licensing activity to ensure that delays in
processing licensing actions are minimized, and that timely NRC reviews are facilitated.
The licensee has continued to demonstrate its capabilities in the field of risk assessment.
Its
individual plant evaluation (IPE) methodologies are frequently used to improve operating
procedures
and training, accident management
strategies,
and the prioritization of preventive
and corrective maintenance activities. Allof these activities were directed to minimizing the
risks to public health and safety.
The licensee is an industry leader in assessing
the risks
posed by nuclear facilities while in the shutdown mode.
Licensee event reports (LERs) were well written with clear descriptions of subject events.
Root cause analysis was adequate,
and recommended
corrective actions were technically
correct.
When in-depth engineering analysis and evaluation were required, the problem was
referred to corporate engineering for solution.
These solutions were generally very good.
Internally, the licensee uses three reporting systems to identify, document, and initiate action
on plant deficiencies including Significant Operating Occurrences Reports (SOORs), Non-
Conformance Reports (NCRs), and Engineering Discrepancy Reports (EDRs).
During this
period, Event Review Teams (ERTs) were formed to review Category
1 SOORs (the most
significant).
These ERTs were comprised of plant staff members who were the most
knowledgeable in the affected systems, equipment, or procedures.
ERTs provide a more
thorough and timely evaluation, and were found to.be very effective at identifying the
specific causal factors and broken barriers that led to these important events.
The NRC had concerns regarding the number and significance of outstanding open NCRs.
In
one case, the licensee failed to provide timely resolution of two 1988 NCRs involving
environmental qualification of limitorque motor operators for 64 containment isolation valves.
(See Section III.F) In another case,
an NCR concerning the qualification of HPCI system
22
instrumentation remained open for-a prolonged period.
Many conditionally released NCRs
existed and remained open for prolonged periods of time.
Due dates for conditionally
released NCRs were frequently extended with little or no additional justification.
As discussed in Section III.F, the lack of prompt disposition and correction of certain issues
resulted from the misclassification of safety significance.
However, later in the SALP
period, compensatory actions, operability/reportability determinations and final disposition for
safety significant issues were receiving more prompt attention.
The licensee implemented a new deficiency management
program to review all outstanding
This program reevaluated
many old safety significant issues,
prioritized them according to safety significance, and appropriately dispositioned them.
By
the end of the SALP period, the licensee had reviewed and closed out 328 of 517 NCRs, and
271 out of 605 SOORs, and was making good progress on closing-open EDRs.
These
closure rates also included the new reports issued since the effort commenced.
The licensee
has committed significant resources
to reduce the number and age of outstanding deficiencies.
The licensee has set closure goals of 1992 for old issues and one fuel cycle for all newly
identified deficiencies.
Thus far, the licensee's progress in meeting. this goal has been
excellent.
In summary, the licensee's
management
continued to emphasize thorough self-assessment
and
organizational effectiveness.
The licensee's
technical staff was of high caliber and was
generally very thorough in resolving complex technical issues.
The use of the IPE
methodology to address normal and abnormal operational problems 'continued to be evident.
The licensee's nonconservative
approach in defining safety significant concerns resulted in
weaknesses
regarding timely discrepancy resolution and reportability determinations.
Management redefined a more conservative approach to safety significant issues and has made
significant progress in resolving outstanding discrepancies,
Perf rmance Ratin:
1
B ard
omment:
The licensee's conservative approach to nuclear activities and continued managem'ent
support of comprehensive
self-assessment
programs reflected a superior quality
program.
However, there were problems involving timely resolution of deficiencies
primarily in the area of Engineering and Technical Support.
Continued improvement
of this attribute in all appropriate functional areas should remain a management
priority.
0
,23
P RTIN
DATA AND
ARY
lVA
During the assessment
period, the Susquehanna
units operated safely and effectively. Unit 1
experienced four unplanned shutdowns, one of which was an automatic scram.
Unit 2
experienced two unplanned shutdowns, both of which were automatic scrams.
(See Section
IV.D - Reactor Trips and Unplanned Shutdowns).
Refueling outages were conducted on both units.
The Unit 2 third refueling outage took
place from September 9, 1989 through November 23, 1989 for a total of 76 days.
The Unit
1 fifth refueling outage took place from September
12, 1990 through November 17, 1990 for
a total of 66 days.
Major activities during these outages included refueling, replacement of
selected Control Rod Drives and LPRM strings, surveillance testing and inservice inspections.
Also, several major projects to address Heat Exchanger replacement,
Appendix "R", Loss of
Offsite Power, Emergency Service Water and Instrument Air upgrades were completed.
Significant events which occurred during the assessment
period included:
A significant
radiation exposure of a contractor individual in August 1989, when the individual placed a
contaminated millipore filter in his shirt pocket; two emergency diesel generator crankcase
overpressurizations
in September and October 1989 resulting in substantial damage to both
engines; an Alert was declared in Unit 1 on February 3, 1990 due to a loss of shutdown
cooling leading to reactor coolant temperatures
greater than 200 degrees F.
Temperature was
stabilized at approximately 250 degrees F and shutdown cooling was returned to service about
5 hours5.787037e-5 days <br />0.00139 hours <br />8.267196e-6 weeks <br />1.9025e-6 months <br /> later; in September
1990 two emergency diesel generators suffered extensive damage
when sandblast grit entered the combustion chambers from the intercoolers following
sandblast cleaning of the intercoolers.
IVAB NRC Ins ecti
n and Review Activities
During this assessment
period there were two NRC resident inspectors assigned to the site.
Several programmatic inspections were performed by regional inspectors in the areas of
Maintenance, Emergency Preparedness,
Security, Engineering, Quality Assurance,
and
Radiological Controls.
The NRC conducted the following team inspections during the period:
Electrical Distribution System Functional, Maintenance Team, Fitness For Duty, Emergency
Operating Procedures,
and Training.
There were a total of 6966 inspection hours, which
represents
5573 hours0.0645 days <br />1.548 hours <br />0.00921 weeks <br />0.00212 months <br /> on an annualized basis.
IV.C
i nificant Licen ee Meetin
A Management Meeting was held on September 6, 1989, in the NRC Region I office
to discuss licensee initiatives in the maintenance area.
24
An Enforcement Conference was held on October 3, 1989 in the NRC Region I office
to discuss the unplanned occupational exposure of a contractor employee at
Susquehanna
Unit 2.
An Enforcement Conference was held on November 21, 1989 in the NRC Region I
office to discuss a requalification program provision that allowed operators who failed
requalification to return to licensed duties prior to successful retraining and retesting.
A Management Meeting was held on December 19, 1989 in the NRC Region I office
to discuss reportability of engineering deficiencies.
A Management Meeting was held on May 23, 1990 in the NRC Region I office to
discuss the licensee's performance at the mid-SALP period.
A Management Meeting was held on July 10, 1990 in the NRC Region I office to
discuss various electrical distribution issues at Susquehanna
Units 1 and 2.
An Enforcement Conference was held on October 4, 1990 at the NRC Region I office
to discuss apparent violations regarding corrective action for environmental
qualification deficiencies and nonconformance report system concerns.
A Management Meeting was held on October 26, 1990 at the NRC Region I office to
discuss licensee initiatives in the area of discrepancy management.
A Management Meeting was held on November 15, 1990 at the PP&L Allentown
office to discuss licensee initiatives in the area of reportability.
IV.D
eactor Tri
nd
n lanned
hutdown
Date
Power
Level
~R~~ue
Functional
korea
Event De cri ti n
1.
09/08/89
100%
Personnel Error
Engineering/Technical Support
MANUALSHUTDOWN due to questionable operability of wetwell to drywell vacuum
breakers.
A damping orifice was inadvertently omitted from modification of the vacuum
breakers during the previous Unit 1 refueling outage.
4
25
eactor Tri
and
n lanned
h td wns
nt.
Date
Power
~Lev I
Functional
~r
Even De cri ti
n'.
05/28/90
100%
Component Failure
NA
AUTOMATICSCRAM due to Feedwater Control System circuit failure. The "B" level
instrument failed downscale generating a false low level signal that caused the feedwater
pumps to overfeed the vessel resultin in an actual high level turbine trip and reactor scram.
3.
02/01/90
100%
Design Deficiency
Engineering/Technical Support
MANUALSHUTDOWN due to a leak in the EHC line to the number 4 Main Turbine
Control Valve.
The leak was due to engineering specifying incorrect 0-rings during initial
plant construction.
4.
06/07/90
100%
Component Failure
NA
MANUALSHUTDOWN to replace all 4 RHR pump motor oil coolers as a result of
extensive cooler corrosion initiallyfound in Unit 2.
1.
02/06/90
100%
Component Failure
NA
AUTOMATICSCRAM due to generator load rejection.
A loose states link generated
a high
resistance connection which tripped the backup differential current protection scheme for the
500KV switchyard.
2.
05/28/90
100%
Component Failure
NA
AUTOMATICSCRAM due to Feedwater Control System circuit failure. The "B" level
instrument failed downscale generating a false low level signal that caused the feedwater
pumps to overfeed the vessel resulting in an actual high level turbine trip and reactor scram.
TABLE 1
n
ti nH
r
mrna
Susquehanna
Steam Electric Station
August 1, 1989 - November 30, 1990
FUN TI NALAREA
PLANT OPERATIONS
RADIOLOGICALCONTROLS'285
467
ANNUALIZED
HQI36.
1028
374.
ER ENT
,19
MAINTENANCE/SURVEILLANCE
1133
906
16
SECURITY/SAFEGUARDS
ENGINEERING SUPPORT
SAFETY ASSESSMENT/
QUALITYVERIFICATION
TOTALS:
219
186
2317
1359
6966
175
149
1854
1087
5573
19
100
- Does not include NRC licensing staff hours.
// Includes 1,197 hours0.00228 days <br />0.0547 hours <br />3.257275e-4 weeks <br />7.49585e-5 months <br /> for the EDSFI Inspection and 545 hours0.00631 days <br />0.151 hours <br />9.011243e-4 weeks <br />2.073725e-4 months <br /> for the Maintenance Team
Inspection.
l+
4
~ABLE2
Enf rcem n
umma
Susquehanna
Steam Electric Station
August 1, 1989 - November 30, 1990
m er f Violations b
everi
Level
F
TI NALAREA
H
+
IV, V
QEV
TOTAL
PLANT OPERATIONS
RADIOLOGICALCONTROLS
MAINTENANCE/SURVEILLANCE
1
2
1
3
SECURITY/SAFEGUARDS
ENGINEERING SUPPORT
SAFETY ASSESSMENT/
QUALITYVERIFICATION
1
1
1
4
TOTALS:
2
10
1
1
14
Enforcement conferences were held with the Licensee on October 3, 1989, to discuss an
unplanned personnel explosure; on November 21, 1989, to discuss a provision in the
requalification program which allowed the assignment of licensed duties to personnel that had
failed a requalification examination; and on October 4, 1990, to discuss corrective action /
environmental qualification issues.
A $25,000 civilpenalty was imposed for the latter
violation,
N TI NALAREA
~TABLE
i
n eeEv
n Re
rt
umma
Susquehanna
Steam Electric Station
August 1, 1989 - November 30, 1990
Number of LERs by Cause Code
A
B
Q
Q
E
g
~TTAL
PLANT OPERATIONS
RADIOLOGICALCONTROLS
MAINTENANCE/SURVEILLANCE
1
1
7
2
4
1
14
9
1
16
SECURITY/SAFEGUARDS
ENGINEEMNG SUPPORT
7
1
11
SAFETY ASSESSMENT/
QUALITYVERIFICATION
- TOTAL:
6
1
1
1
9
19
7
1
5
19
2
53
This analysis includes LERs88-022 through 90-024 for Unit 1 and 89-006 through 90-012
for Unit 2.
d
A.
Personnel Error
B.
Design/Man. Constr. /Install
C.
External Cause
D.
Defective Procedure
E.
Component Failure
X.
Other
- Root Causes
assessed
by the SALP Board may differ.from those
listed in the LERs.
SUKhh I,
ALP
RITERIA
Licensee performance is assessed
in selected functional areas depending on whether the
'acility
is in a construction'r operational phase.
Functional areas normally represent areas
significant to nuclear safety and the environment.
Some functional. areas may not be assessed
because of little or no licensee activities or lack of meaningful observations in that area.
Special areas may be added to highlight significant observations.
The following evaluation criteria were used, as applicable, to assess
each functional area:
1.
Assurance of quality, including management involvement and control;
2.
Approach to resolution of technical issues from a safety standpoint;
3.
Enforcement history;
Operational and construction events (including response to, analyses of, reporting of,
and corrective actions fo');
Staffing (including management);
6.
Effectiveness of training and qualification program.
On the basis of the SALP Board assessment,
each functional area evaluated is rated according
to three performance categories,
The definitions of these performance categories are given
below:
Qate~oi~l;
Licensee management
attention to and involvement in nuclear safety or
safeguards activities resulted in a superior level of performance.
NRC willconsider reduced
levels of inspection effort.
~ate~ory 2:
Licensee management
attention to'and involvement in nuclear safety or
safeguards activities resulted in a good level of performance.
NRC willconsider maintaining
normal levels of inspection effort.
~te g~:
Licensee management attention and involvement in nuclear safety or safeguards
activities resulted in an acceptable level of performance; however, because of the NRC's
concern that a decrease in performance may approach or reach an unacceptable
level, NRC
willconsider increased levels of inspection effort.
g~ate
i~rN: Insufficient information exists to support an assessment of licensee
~ g
performance.
These cases would include instances in which a rating could not be developed
because of insufficient licensee activity or insufficient NRC inspection.
The SALP Board may assess
a functional area to compare the licensee's performance during
an entire period in order to determine a performance trend.
Generally, performance in the
latter part of a SALP period is compared to the performance of the entire period.
Trends in
performance from period to the next may also be noted.
The trend categories used by the
SALP Board are as follows:
I~mrovin: Licensee performance was determined to be improving
~Declinin:
Licensee performance was determined
to be declining and the licensee had not
satisfactorily addressed
this pattern.
A trend is assigned only when, in the opinion of the SALP Board, the trend is significant
enough to be considered indicative of a likely change in the performance category in the near
, future.
For example, a classification of "Category 2, Improving" indicates the clear potential
for "Category 1" performance in the next SALP period.
I
It should be noted that Category 3 performance,
the lowest category, represents
acceptable,
although minimally adequate,
safety performance. Ifat any time the NRC concluded that a
licensee was not achieving an adequate level of safety performance, it would then be
incumbent upon NRC to take prompt appropriate action in the interest of public health and
safety.
Such matters would be dealt with independently from, and on a more urgent schedule
than, the SALP process.