ML17221A630
| ML17221A630 | |
| Person / Time | |
|---|---|
| Site: | Saint Lucie  |
| Issue date: | 02/09/1988 |
| From: | Bibb H, Christensen H, Crlenjak R NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
| To: | |
| Shared Package | |
| ML17221A628 | List: |
| References | |
| 50-335-87-31, 50-389-87-30, NUDOCS 8802220005 | |
| Download: ML17221A630 (7) | |
See also: IR 05000335/1987031
Text
UNITED STATES
NUCLEAR REGULATORY COMMISSION
REGION II
'l01 MARIETTASTREET, N.W.
ATLANTA,GEORGIA 30323
Report Nos.:
50-335/87-31
and 50-389/87-30
Licensee:
Florida Power and Light Company
9250 West Flagler Street
Miami,
FL
33102
Docket Nos.;
50-335
and 50-389
License Nos.:
DPR-67 and
Inspectors:
r enga
enlor
sl dent
nspector
Approved by:
.
8
b,
esl ent
spector
H.
rlstensen,
ection
C lef
c lng
Division of Reactor Projects
Facility Name:
St. Lucie
1 and
2
Inspection
Conduct
.
December
6,
1987 - January
2,
1988
te
1 gne
2
'F 8P
ate
lgne
5'N
a
lgne
SUMMARY
Scope:
This inspection
involved on site activities in the areas of Technical
Specification
compliance,
operator
performance,
overall
plant
operations,
quality
assurance
practices,
station
and
corporate
management
practices,
corrective
and
preventive
maintenance
activities, site security procedures,
radiation control activities,
and surveillance activities.
Results:
Of
the
areas
inspected,
one
violation
was
identified.
50-335/87-31-01,
Failure to implement
procedure
1-0970020,
Operation of the
120Y Instrument
AC System
(Class
1E).
8802220005
880209
ADOCK 05000335
0
REPORT DETAILS
Persons
Contacted
Licensee
Employees
K. Harris, St.
Lucie Site Vice President
~G. Boissy, Plant Manager
R. Sipos,
Service
Manager
J.
Barrow, Operations
Superintendent
"T. Dillard, Maintenance
Superintendent
"J. Harper,
gA Superintendent
C. Burton, Operations
Supervisor
~R. Frechette,
Chemistry Supervisor
C.
Leppla, I
8
C Supervisor
"C. Pell, Technical Staff Supervisor
E. Wunderlich, Reactor Engineering Supervisor
- H. Buchanan,
Health Physics
Supervisor
W. White, Security Supervisor
B. Sculthorpe,
Reliability and Support Supervisor (Acting)
J.
Barrow, Fire Prevention
Coordinator
R.
Dawson, Assistant,
Plant Superintendent
- Electrical
C. Wilson, Assistant,
Plant Superintendent
- Mechanical
"N. Ross, guality Control Supervisor
"R. Burgess, Reliability and Support Staff
"L. McLaughlin, Technical Staff
"B. Mikell, Outage
Management
"R.
Packwood,
Electrical Maintenance
Other
licensee
employees
contacted
included
technicians,
operators,
mechanics,
security force members,
and office personnel.
"Attended exit interview
Exit Interview
The inspection
scope
and findings were summarized
on January 8, 1988, with
those
persons
indicated in paragraph
1 above.
The licensee
did not identify as proprietary any of the materials
provided
to or reviewed by the inspectors
during this inspection.
Licensee Action on Previous
Enforcement Matters
This subject
was not addressed
in this inspection.
Plant Tours (Units j. and 2), Modules
71707
8 71710
The inspectors
conducted
plant tours periodically during this inspection
interval to verify that monitoring equipment
was
recording
as required,
equipment
was properly tagged,
operations
personnel
were
aware of plant
conditions,
and plant housekeeping
efforts were adequate.
The inspectors
also
determined
that
appropriate
radiation 'controls
were
properly
established,
critical clean areas
were being controlled in accordance
with
procedures,
excess
equipment
or material
was
stored
properly
and
combustible
materials
and debris
were
disposed of expeditiously.
During
tours,
the inspectors
looked for the existence
of unusual fluid leaks,
piping vibrations,
pipe
hanger
and seismic restraint settings,
various
valve
and
breaker
positions,
equipment caution
and danger tags,
component
positions,
adequacy of fire fighting equipment,
and instrument calibration
dates.
Some tours were conducted
on backshifts.
The
inspectors
routinely conducted partial
walkdowns of emergency
core
cooling
(ECCS)
systems,
valve,
breaker/switch
lineups
and
equipment
conditions
were
randomly verified both locally and in the control
room.
During the inspection
period the inspectors
conducted
a complete
walkdown
in
the
accessible
area
of the unit 1
and unit 2
emergency
diesel
generators
and
AC/DC safety-related
switchgear to verify that the lineups
were in accordance
with licensee
requirements
for operability and equip-
ment
material
conditions
were
satisfactory.
Additionally,
flowpath
verifications
were performed
on the following systems:
unit 1 and unit 2
chemical
and
volume control,
main
and auxiliary feedwater,
and diesel
generator air start
and diesel
fuel oil supply.
No violations or deviations
were identified.
Plant Operations
Review (Units 1 and 2), Module 71707
The
inspectors,
periodically during the
inspection
interval,
reviewed
shift logs
and
operations
records,
including data
sheets,
instrument
traces,
and
records
of equipment
malfunctions.
This
review included
control
room logs
and auxiliary logs, operating orders,
standing orders,
jumper
logs
and
equipment
tagout
records.
The
inspectors
routinely
observed
operator
alertness
and
demeanor
during plant tours.
During
routine
operations,
operator
performance
and
response
actions
were-
observed
and
evaluated.
The
inspectors
conducted
random off-hours
inspections
during the reporting interval to assure
that operations
and
security
remained
at
an acceptable
level.
Shift turnovers
were observed
to verify that they were conducted
in accordance
with approved
licensee.
procedures.
The inspectors
performed
an in-depth review of the following
safety-related
tagouts
(clearances):
Unit 1
1-8-55
Control
Room ILRT Air Supply - Isolate
1-11-67
Intake Cooling Closed
Blowdown Heat Exchanger - Repair
Leaks
1-12-75
Reactor Trip Circuit Breaker - [PM] Preventive
Maintenance
1-12-112
HVE - 10B - Change
HEPA Filter
Unit 2
2-12-87
2B
Instrument Air Compressor
Turbine
Cooling Water Jacket-
Cl can
2-12-91
B Side
Steam Jet Ejector - Repair
Steam
Leak
2-12-96
2A gualified Safety
Parameter
Display System - Change
DC Supply
Breaker
No violations or deviations
were identified.
Technical Specification
Compliance (Units 1 and 2)
During this reporting interval,
the inspectors
verified compliance with
limiting conditions
for operations
(LCO's)
and results
of selected
surveillance
tests.
These
verifications
were
accomplished
by direct
observation
of monitoring
instrumentation,
valve
positions,
switch
positions,
and
review of completed
logs
and records.
The licensee's
compliance
with
LCO action
statements
were
reviewed
on selected
occur-
rences
as they happened.
No violations or deviations
were identified.
Maintenance
Observation,
Module 62703
Station
maintenance
activities of selected
safety-related
systems
and
components
were observed/reviewed
to ascertain
that they were conducted
in
accordance
with requirements.
The following items were considered
during
this review; limiting conditions for operations
were met, activities were
accomplished
using
approved
procedures,
functional tests
and/or calibra-
tions
were performed prior to returning components
or systems
to service;
quality control
records
were maintained;
activities were accomplished
by
qualified personnel;
parts
and materials
used were properly certified; and
radiological controls
were
implemented
as
required.
Work requests
were
reviewed
to determine
status
of outstanding
jobs
and to
assure
the
priority was
assigned
to safety-related
equipment.
The
inspectors
observed portions of the following maintenance activities:
Unit 1
PWO - 4643
PWO - 8628
PWO - 8630
Measuring
8 Test Equipment - Calibration
1B Diesel Generator
Soak-Back
Pumps - Inspection
1B Diesel Generator Air Line Lubricators -
PM Inspection
Unit 2
PWO - 6204
2B1
Reactor
Coolant
Pump
Controlled Bleedoff,
Calibrate
PWO - 6860
Radiation Monitor, RM-11 - Repair
PWO - 2168
2B Fuel
Pool Cooling
Pump -
No violations or deviations
were identified.
Physical
Protection (Units
1 and 2), Module 71707
The inspectors verified by observation
and interviews during the reporting
interval
that
measures
taken to assure
the physical
protection of the
facility met
current
requirements..
Areas
inspected
included
the
organization
of the security force,
the establishment
and maintenance
of
gates,
doors
and isolation
zones
in the proper conditions,
that
access
control
and badging
was proper,
and procedures
were followed.
No violations or deviations
were identified.
Surveillance
Observations,
Module 61726
During the inspection
period,
the inspectors verified plant operations
in
compliance
with selected
technical
specifications
(TS)
requirements.
Typical of these
were confirmation of compliance with the
TS for reactor
coolant
chemistry,
refueling water tank,
containment
pressure,
control
room ventilation
and
and
DC electrical
sources.
The
inspectors
verified
that
testing
was
performed
in
accordance
with
adequate
procedures,
test instrumentation
was calibrated,
limiting conditions for
operations
were
met,
removal
and restoration
of the affected
components
were
accomplished,
test
results
met requirements
and were
reviewed
by
personnel
other
than
the
individual directing the test,
and that
any
deficiencies
identified during the testing
were properly reviewed
and
resolved
by appropriate
management
personnel.
The inspectors
observed
portions of the following sur vei llances:
Unit 1
OP 0030126
OP 1-0110050
OP 0120026
ECC Calculation Worksheets
Control Element Assembly Periodic Exercise
Reactivity - Deviation from Design
OP 1-0010125
1A Boric Acid Pump - Monthly Code
Run (Data Sheet
12)
Unit 2
AP 2-0010123
Valve, Switch Deviation Log (Appendix
C)
AP 0010132
2B
Component
Cooling
Water
Pump
Baseline
Data
Sheet
(Attachment
1)
No violations or deviations
were identified.
Reactor Trips, Module 93702
On
December
21,
1987,
St. Lucie Unit IIl tripped while in
Mode
1 at
100
percent
power.
The trip was
caused
by a high startup rate trip signal
which was
generated
while a non-licensed
operator
was attempting to place
the
1D instrument
inverter
back
in service after
completing routine
preventive maintenance.
At
100
percent
power the
high startup
rate trip signal
is
bypassed.
However,
about
one
week prior to the trip the
B channel
high startup rate
bistable
had
been pulled for a routine surveillance
check which placed the
startup
rate
ci rcuit in
an active 1-out-of-3 trip mode.
Operations
personnel
were
unaware
that this condition existed;
they
assumed
that
above
15 percent
power the high startup rate circuit was automatically
and
permanently
bypassed.
The licensee
discovered that pulling a startup rate
bistable
reinstated
the rate trip.
Upon completion of the preventive
maintenance
procedure
on
the
1
D instrument
inverter,
the
operator
attempted
to
place
the
inverter
back
into service
by
removing
the
clearance
tags
and
repositioning
breakers.
The
operator
used
the
clearance
procedure
rather
than follow the
operations
procedure
for
placing
an inverter back into service.
By so doing,
power was lost to all
the
D channel
instruments
because
the
D instrument inverter output breaker
was not closed
when the operator transferred
function to the
D inverter.
This caused
loss of power to the
D startup rate
channel
which was in
a
1-out-of-3 mode
and caused
the reactor trip.
Other non-licensed
operators
were interviewed
by Florida Power and Light
to
determine
how they
would
have
performed
this
operation
and all
responded
in
a proper
manner, i.e., follow the operations
procedure,
so
this does not appear to be
a breakdown in the operations training program,
but
an isolated
incident of operator
error.
The operator
has
been
counseled
on
the
importance
of following procedures,
the training
department
has
evaluated
their training methods,
and
a
human factors
performance
study
is
being
conducted.
All systems
and
components
performed normally during and after the trip.
The
root
cause
of the
was
a
personnel
error
by
a
non-licensed
operator
for not following a plant
approved
procedure,
Operation
of the
120 Volt Instrument
AC Class
lE System.
This is
a
violation of the Unit
1
TS 6.8. 1, failure to establish
or implement
procedures
(50-335/87-31-01).