IR 05000155/1993009
| ML20045H903 | |
| Person / Time | |
|---|---|
| Site: | Big Rock Point File:Consumers Energy icon.png |
| Issue date: | 07/19/1993 |
| From: | Jeffrey Jacobson, Wards K NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| To: | |
| Shared Package | |
| ML20045H898 | List: |
| References | |
| 50-155-93-09, 50-155-93-9, NUDOCS 9307220097 | |
| Download: ML20045H903 (4) | |
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i U; S. NUCLEAR REGULATORY COMMISSION I
REGION III
' Report No. 50-155/93009(DRS)
Docket No. 50-155 License No.
DPR-6 Licensee: Consumers' Power Company 1945 West Parnall Road Jackson, MI 49201 Facility Name:
Big Rock Point Nuclear Plant Inspection At:
Big Rock-Point Site, Charlevoix, MI 49720-
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inspection Conducted: July 12 through 14, 1993
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Inspector: k}.' ?b.-d 7/iY/yf K. D. Ward Date l
Approved BJ:
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J.iMltJatobson, Chief Date kJa'ter
Processes Section Inspection Summary Inspection on July 12 throuah 14. 1993 (Recort No. 50-155/93009(DRSll Areas Inspected: Routine announced safety inspection of inservice inspection (ISI) activities including review of programs-(73051), procedures (73052),
observation of work activities (73753), cata review (73755) and erosion / corrosion (E/C) program (49001).
Results: No violations or deviations were identified.. Based on the results of the inspection, the NRC inspector noted the following:
The implementation of the ISI and E/C were found to be in accordance with the licensee's program.
The licensee's staffing of the ISI and E/C groups were adequate, and the personnel were knowledgeable and conscientious.
Management involvement and commitment to a quality ISI and E/C effort was evident.
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9307220097 930719.'
PDR ADOCK 05000155 G
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DETAILS
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-Persons contacted Consumers Power Company-(CPCo)
- P. Donnelly, Plant Manager
- D. Moeggenberg,-Mechanical / Civil Engineering Supervisor-
- S. Beaghum, Special Projects Supervisor
- J. Toskey, Mechanical / Civil Engineering M. Acker,151 Coordinator U. S. fluclear Requlatorv' Commission (NRC)
- E. Plettner, Senior Resident Inspector
- R, Twigg, Resident inspector
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EBASCO 0. Robbins, Level III
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I Eactory Mutual Enoineerino -(FME)
t R. White, Authorized Nuclear Inservice inspector (ANII)-
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The NRC inspector also contacted and interviewed other licensee and.
contractor employees, i
- Denotesthosepresent'attheexitinterviewonJuly14,IN93.
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2.
Inservice Insoection (ISil a.
Program Review (73051)
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Personnel from CPCo and EBASCO performed the ISI in accordance l
with'ASME Section XI, 1986 Edition.
The' sampling inspection plan
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for addressing intergranular stress corrosion cracking (IGSCC)
included 18 welds and was 'in accordance with Generic Letter (GL)
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88-01.
The welds examined in accordance with GL 88-01 were found to be acceptable. Organizational staffing for the ISI program was
found to be acceptable and the services of an Authorized Nuclear
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Inservice Inspector (ANil) were procured from Factory Mutual Engineering.
The qualifications and certifications of all l
inspection personnel performing 151 were reviewed to ensure conformance with SNT-TC-1A.
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b.
Procedure Review (73052)
All' applicable 151 procedures were approved by the ANil and were reviewed by the NRC inspector The ISI procedures were found to l
be acceptable and in accordance with ASME Section V, 1986 Edition.
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c.
Data Review (737551
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i The examination data was'found to be in accordance with the
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applicable'ISI procedures and ASME Code requirements.
The NRC
inspector reviewed documents related to nondestructive examination
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(NDE) equipment, data, and evaluations.
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An indication on weld.24 MRS-121-1 (recirculation system) was
identified during the previous outage as IGSCC.
The indication (.7" in length and.12" in depth) was found to be acceptable per f
the ASME Code.
The weld was UT'd this outage by EBASCO personnel.
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using the manual-and P Scan presentation, and was found to have approximately the same length and through wall dimension as the-
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previous outage. The weld will continue to be examined during'
future outages.
A leak on a 1 1/2", carbon steel, Class 1, socket weld located on l
the steam drum was noted while performing a visual examination during shutdown of the plant.
Liquid penetrant examinations (PT)
are required for socket welds on the steam drum.
The weld was repaired and 11 other 1 1/2" socket welds in the same area were.PT a
examined and found to be acceptable.
CPCo established the
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acceptance criteria for PT of these socket welds as being no allowable indications which is more conservative than the Code.
These socket welds are part of the ISI ten year plan inspections.
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d.
Observation of Work Activities (73753)
The NRC inspector observed E8ASCO personnel perform'ing UT of safe f
end to nozzle welds No.101-06 and No.103-06 and' found the
examinations to be in accordance with approved procedures.
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Erosion / Corrosion (E/C) Activities (49001)
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Consumers Power Company began their E/C program in 1973.
In 1989, CPCo established a formalized procedure and administrative controls to ensure continued long term implementation of an E/C monitoring program for piping and components (Reference NRC Report No. 50-155/91023(DRS)).
For this refueling outage, CPCo selected an inspection sample of nine components, utilizing the component rankings (type' of component, pressure flow, velocity, etc.), previous inspection results, and
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engineering judgement. The NRC inspector reviewed the E/C program, procedures, NDE certifications, and examination and found them
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acceptable. To date, components and pipe sections have been
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conservatively repaired / replaced as a result of the E/C program.
No violations or deviations were identified.
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-Exit Interview
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The NRC inspector met with licensee representatives (denoted in Paragraph 1) at the conclusion of the inspection.
The NRC inspector.
i summarized the scope and findings of the inspection activities.
The NRC-inspector also discussed -the likely informational content of the l
inspection report with regard to documents or processes reviewed'by the NRC inspector during the. inspection. The licensee did not identify any-such documents / processes as proprietary.
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