ML20198K199
| ML20198K199 | |
| Person / Time | |
|---|---|
| Site: | McGuire, Mcguire  |
| Issue date: | 05/13/1986 |
| From: | Blake J, Coley J NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
| To: | |
| Shared Package | |
| ML20198K185 | List: |
| References | |
| 50-369-86-11, 50-370-86-11, NUDOCS 8606030360 | |
| Download: ML20198K199 (10) | |
See also: IR 05000369/1986011
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UNITED STATES
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NUCLEAR REGULATORY COMMISSION
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REGION 11
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101 MARIETTA STREET. N.W.
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ATL ANTA. G EORGI A 30323
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Report Nos.:
50-369/86-11 and 50-370/86-11
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Licensee:
Duke Power Company
422 South Church Street
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Charlotte, NC 28242-
Docket Nos.:
50-369 and 50-370
License Nos.: .NPF-9 and NPF-17
Facility Name:
McGuire 1 and 2
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Inspection Conducted:
April 7-11, 1986
Inspector: A.M
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J.
gley
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Date Si ned
Approved by: -
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J. J.
lale, Section Chie I
Date Signed
Eng'i ering Branch
Dfvi ion of Reactor Safety
SUMMARY
Scope:
This routine, unannounced inspection entailed 36 inspector-hours on site
in the areas of inservice inspection - review of procedures, observation of work
activities, and review of completed data, inprocess welding, and followup on
previous inspection items.
Results:
One violation was identified - Failure to report erratic valve action
(paragraph 3).
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REPORT DETAILS
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1.
Persons Contacted
Licensee Employees
- T. McConnell, Station Manager, McGuire Nuclear Site (MNS)
- B. Travis, Operations Superintendent - MNS
- B. Hamilton, Superintendent of Technical Services - MNS
- D. Rain, Superintendent of Maintenance - MNS
- N. McCraw, Compliance Engineer - MNS
- J. Torre, Nuclear Power Department Licensing
- A. Batts, Quality Assurance Engineering - MNS
- R. Williams, Quality Assurance / Planning Supervisor - MNS
- T. Hilderbrand, Quality Assurance Specialist
- L. Helderman, Quality Assurance Supervisor - MNS
- F. Bulgin, Senior Quality Control Supervisor - MNS
Other licensee employees contacted included construction craftsmen,
engineers, technicians, mechanics, security force members, and office
personnel.
Other Organization
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R. Patterson, Babcock and Wilcox, Inservice Inspection (ISI)
Project Specialist
C. Meredith, Babcock and Wilcox, Level II Examiner
W. Persinger, Babcock and Wilcox, Level II Examiner
J. Walton, Babcock and Wilcox, level II Examiner
NRC Resident Inspector
- W. Orders, Senior Resident Inspector
- Attended exit interview
2.
Exit Interview
The inspection scope and findings were summarized on April 11, 1986, with
those persons indicated in paragraph 1 above. The inspector described the
areas inspected and discussed in detail the inspection findings listed
below.
No dissenting comments were received from the licensee.
After
further review of Unresolved Item 369/86-04-01, " Valve Stroke Time" by the
Regional staff, this item was identified as a Level V violation.
This
position was discussed with Mr. N. McCraw, Compliance Engineer and other
licensee personnel by telephone on April 29, 1986.
(0 pen) Violation 369/86-11-01, Failure to Report Erratic Valve Action -
paragraph 3.
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(0 pen) Unresolved Item 370/86-11-01, Magnetic Particle Examination of
Integral Attachments
paragraph 6.d.
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(Closed) Unresolved Item 369/85-04-01, Valve Stroke Times
paragraph 3.
The licensee did not identify as proprietary any of the materials provided
to or reviewed by the inspector during this inspection.
3.
Licensee Action on Previous Enforcement Matters
(Closed) Unresolved Item 50-369/85-04-01 Valve Stroke Times.
During
Inspection 85-04 (February 1985) it was observed that the documented stroke
times for valve ND 34 (RHR heat exchanger bypass) and valve NI 332A (CVCS to
Safety Injection pump) in Unit I were zero.
The reference (designed) stoke
times for these two valves were 60 and 10 seconds respectively.
The
licensee subsequently investigated the stroke times of these valves to
ensure that the valves were moving when being tested.
Problems were
identified in the wiring of the actuator limit switches of both valves.
After repair of the limit switches, the stroke times of the two valves were
established to be 6.6 seconds and 7.25 seconds.
The licensee has upgraded its capability for monitoring the stroke times of
all valves in the McGuire Valve Test Program.
The summary listing of test
results, that has been maintained in logbooks, is being transferred to a
computerized data base.
In the future the valves in each McGuire Unit will
be displayed with its counterpart from the other unit so that significant
deviations in stroke time will be evident.
Because of the licensee's failure to promptly report and correct this
obviously erroneous stroke times, as required by Subsection IWV-3417 of
Section XI of the ASME Code, this item has been redesignated as a level V
violation (369/86-11-01, Failure to Report Erratic Valve Action).
4.
Unresolved Items
Unresolved items are matters about which more information is required to
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determine whether they are acceptable or may involve violations or
desiations.
One unresolved item was identified during this inspection is
discussed in paragraph 6.d.
5.
Inservice Inspection (ISI) - Review of Procedures (730528) Unit 2
The inspector reviewed the ISI procedures indicated below to determine
whether the procedures were consistent with regulatory requirements and
licensee commitments.
The applicable Code for the review was the ASME
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Boiler and Pressure Vessel Code 1980 Edition with Addenda through Winter
1980.
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All procedures listed below had been previously reviewed by NRC during the
1985 outage for Unit 1.
During the current inspection only changes to
previously reviewed documents were reviewed.
The following revised
procedures were examined in the areas of procedure approval and technical
content:
ISI-96, Revision 1, Calibration of the ARIS-III Mechanical Manipulator
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151-120, Revision 24, Ultrasonic Examination of Piping and Vessel Welds
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Joining Similar and Dissimilar Materials
ISI-125, Revision 4, Ultrasonic Examination for Intergrannular Stress
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Corrosion Cracking in Stainless Steel or Nickel Base Alloy Piping
ISI-423, Revision 8, Multifrequency Eddy Current Examination of
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.750-inch 00 x .044-inch Wall RSG tubing in Westinghouse Steam
Generators
1S1-424, Revision 8,
Multifrequency Eddy Current Examination of
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.750-inch OD x .044-inch Wall RSG tubing for Detection of Tube Wear at
Support Plate
ISI-464, Revision 3, Technical Procedure for the Evaluation of Eddy
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Current Data of Nuclear Grade Steam Generator Tubing for Wear Fretting
ISI-460, Revision 12, Technical Procedure for the Evaluation of Eddy
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Current Data of Huclear Grade Steam Generator Tubing
151-463, Revision 4, Technical Procedure for the Evaluation of Eddy
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Current Data Generated from the Multi-Element Probe
Within the areas inspected, no violation or deviation was identified.
6.
Inservice Inspection - Observation of Work and Work Activities (73753)
Unit 2
The inspector observed ISI work and work activities to determine whether the
inservice inspection of Class 1, 2 and 3 pressure retaining components are
performed in accordance with Technical Specifications, the applicable ASME
Code, correspondence between NRC and the licensee concerning relief
requests, and requirements imposed by NRC/ industry initiatives.
See
paragraph 5 abave for the applicable code,
a.
The inspector reviewed the licensee's ISI plan for the current outage
to determine the work scope for the present outage and to ensure that
any changes made to the first period inspection plan concerning
components selection, number of items to be inspected, methods of
examination, and extent of examination are in accordance with the
applicable edition of the Code and have been properly documented and
approved.
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b.
Personnel qualificatiof3/ certification records for four Babcock & Wilcox
Level II examiners associated with the inspections of paragraph c.
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below were reviewed Jo f determine whether the qualification and
certification records properly' reflect the following:
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Employer's name
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Person certified
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Activity qualified to perform
Level of-certification
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Effective period of certification
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Signature of individual certifying title and level
Basis used for csrtification, such as the required number of
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training hours, etc. for the examination method specified
Annual visual acuity, color vision examination, and periodic
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recertification-
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c.
The inspector observed the ultrasonic examinations including calibra-
tion activities for the following:
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Weld / Component
, Identification
item Number
Component Description
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2 SGB-VH-7-9
C02.021.004
Steam Generator 2B Main
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Steam Nozzle to Upper Head
2 SGB-UH-7-9
C02.022-004
Main Steam Nozzle Inside
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Radius Examinations
The inspections were compared with applicable procedures in the
following areas:
(1) Availability of and compliance with approved NDE procedure
(2) Use of knowledgeable NDE personnel
(3) Use of NDE personnel qualified to the proper level
(4) Recording of inspection results
(5) Type of apparatus used
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(6) Extent of coverage of weldment
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(7) Calibration requirements
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(8) Search units
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(9) Beam angles
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(10) DAC curves
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(11) Reference level for monitoring discontinuities
(12)_. Method of demonstrating penetration
(13) Limits of evaluating and recording indications -
(14) Recording significant indicatitins'
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(15) Acceptance limits
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Certification records for materials and eq'uipment used in the above
examinations werczalso reviewed by the inspector.
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d.
The inspector observed the magnetic particle examination of the
following integral attachment weld on the main steam system:
Component Identification
Item Number
Procedure
2-MCA-SM-H101
C3.40.12
NDE-25, hvision 8
The above magnetic particle examination was observed to determine
whether the following test attributes were as specified in the
applicable test procedure:
Material surface preparation / cleanliness
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Material surface temperature
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Light intensity
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Particle contrast
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Examination technique / coverage
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Yoke lifting power
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Magnetizing current
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Pole spacing
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Examination personnel knowledgeable of limiting test factors
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The inspector observed the following test limiting factors during the
examination of the above weld:
(1) The magnetic particle examiner was observed taking initial
magnetic field strength readings with his magnetic field indicator
positioned upside down.
The inspector questioned the examine" as to
which side of the field indicator should be used to check i.he
magnetic field and the examiner answered the inspector's question
correctly.
However,
as stated above, the examiner had
inadvertently positioned the field indicator incorrectly and had
proceeded to examine the weld.
When the inspector requested the
examiner to re-check his magnetic field on the weld, a magnetic
field could not be obtained.
(2) A portable light mounted on the yoke was observed to produce a
light source les, reflective of the ferromagnetic particles than a
light source established using a flashlight.
Investigation into
this problem revealed that in some instances the magnetic
particles on the field indicator could not be seen using the yoke
mounted light, however, a flashlight clearly revealed a definite
field of particles.
(3) As stated briefly in item (1) above, a magnetic field could not be
established in the weld under examination when using dry powder
magnetic particles with alternating current (AC) yokes or with
direct current (DC) prods.
The reason for this abnormality was
not established by the licensee during the inspector's visit.
Since the weld examined above was not unique in configuration and
field strength indicators are not required to be used prior to
each examination by the examination procedure, welds previously
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examined by the licensee may have been accepted when, in fact, a
magnetic field for dry particle examination may not have been
induced into the weld.
(4) Procedure No. NDE-25, Appendix A, invokes the general requirements
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of the Code for using a magnetic particle field indicator.
However,
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the test procedure fails to specify wt.en or on what specific
components and shapes the magnetic particle field indicator
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should be used.
At the conclusion of the inspection, the licensee was actively
investigating the cause and possible effects of the magnetic particle
examination abnormality reported by the inspector.
Until the
licensee's investigation is complete and the scope of the problem
determined.
This issue will be identified as Unresolved Item
370/86-11-01, Magnetic Particle Examination of Integral Attachments.
Within the areas examined, no violation or deviation was identified.
7.
Inservice Inspection Data Review and Evaluation (737558) Unit 2
The inspector reviewed nondestructive examination (NDE) records for the
current inspection period to ascertain whether the extent and frequency of
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examinations were consistent with the Technical Specification and the NRC
accepted ISI program whether they met the minimum examination requirements
specified in the applicable addenda of ASME Section XI, whether they had
been reviewed by the Authorized Nuclear Inservice Inspector.
See
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paragraph 5 above for the applicable Code.
a.
NDE records for the following pressure retaining piping system welds
were selected by the inspector:
Weld Identification
Item Number
Piping Description
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2 PZR-W1SE
B05.020.001
14" Diameter,
Pressurizer Surge
Nozzle Safe-End
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2 PZR-W2SE
B05.020.001
4" Diameter,
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Pressurizer Spray
Nozzle Safe-End
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The records for the above welds were reviewed to determine whether they
contained or provided reference to the following documents:
Examination results and data sheets
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Examination equipment data
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Calibration data sheets
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Examination evaluation data
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Records on extent of examination
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Records of deviation from program and procedures including
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justification for deviation, if applicable
Records on disposition of findings
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Re-examination data after repair work, if applicable
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Identification of NDE material such as penetrant, penetrant
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cleaner, couplant, films, tapes, etc.
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b.
HOE records for the following pressure vessel welds were selected by
the inspector:
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Weld Identification
Item Number
Component Description
2 PZR-5
B.02.011.002
Pressurizer Upper Head to
Shell Circumferential
Weld - 91.5 inches in
Length
2 PZR-9
B.02.012.002
Pressurizer Upper Head to
Shell Longitudinal Weld -
91.5 inches in Length
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The records for the above welds were reviewed to ascertain that the
following requirements were met:
The method, extent, and technique of examination complied with the
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licensee's ISI program and applicable NDE procedure.
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The examination data were within the acceptance criteria as
outlined in the applicable NDE procedure and applicable Code
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requirements.
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The recording, evaluating, and dispositioning of findings were in
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compliance with the applicable NDE procedure and Code requirements.
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Inservice NDE results were compared with the recorded results of
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prior Section XI examinations.
The method used for NDE was sufficient to determine the full
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extent of indication or acceptance.
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Within the areas examined, no violation or deviation was identified.
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8.
Production Welding (55050) Unit 2
-The inspector observed production welding to determine through direct
observation whether welding activities are performed in accordance with the
ASME Code.
See paragraph 5 above for the applicable code.
Welding activities for the following welds were observed:
Weld Identification
Size / Class
Activity Observed
CA 2FW43-25
4" Diameter / Class C
Fitup of Open Butt Weld
CA 2FW42-38
" Diameter to 4"
In Process Welding of
Diameter / Class C
Branch Connection Groove
CA 2FW43-1
4" Diameter / Class C
In Process Welding of Open
Butt Weld
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The welding was observed to determine whether:
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Work was conducted in accordance with a document which coordinates and
sequences operations, references procedures, establishes hold points,
and provides for production and inspection approval.
Procedures, drawings, and other instructions were at the work station
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and readily available.
WPS assignment was in accordance with applicable Code requirements.
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Welding technique and sequence were specified and adhered to.
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Welding filler materials were the specified type and traceable to
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certifications.
Weld joint geometry was in accordance with applicable procedure and was
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inspected.
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Alignment of parts was as specified.
Temporary attachments were by qualified welders in accordance with a
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qualified WPS.
Preheat and interpass temperatures were in accordance with applicable
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procedures.
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Welding tecnnique was in accordance with applicable procedures.
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Electrodes were used in positions and with electrical characteristics
specified.
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Shielding gas was in accordance with the welding procedure.
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Welding equipment was in good condition and automatic welding equipment
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was calibrated.
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Interpass cleaning was in accordance with applicable procedures.
Temporary attachments were removed in accordance with applicable
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procedures.
Gas purging, if specified, was used in accordance with applicable
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procedure.
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Process control system had provisions for repairs.
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Welders were qualified.
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No peening performed on root and surface layers.
Within the areas examined, no violation or deviation was identified.
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