ML17216A438
| ML17216A438 | |
| Person / Time | |
|---|---|
| Site: | Saint Lucie  |
| Issue date: | 02/28/1986 |
| From: | Sells D Office of Nuclear Reactor Regulation |
| To: | Thadani A Office of Nuclear Reactor Regulation |
| References | |
| NUDOCS 8603100552 | |
| Download: ML17216A438 (26) | |
Text
Docket No. 50-335
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'EMORANDUM FOR:
FROM:
SUBJECT:
Ashok C. Thadani, Director PWR Project Directorate ¹8 Division ot PWR Licensing-B Donald E. Sells, Project Manager PWR Project Directorate ¹8 Division of PWR Licensing-B MEETING
SUMMARY
" ST.
LUCIE 1 On Tuesday, February 4, 1986, a meeting was held in Bethesda, Maryland with Florida Power and Light Company
{FP&L) to discuss the results of the core support barrel
{CSB) inspection.
This inspection was conducted during the last refueling outage to inspect the repaired areas of the CSB.
The repairs were necessitated by damage to the CSB that was detected during the cycle 6
outage.
A list of attendees is enclosed.
The presentation consisted of a brief presentation of the chronology leading up to the inspection of the CSB.
This was followed by a description of the configuration and the extent of the damage to the CSB that was detected during the cycle 6 outage.
This presentation included a description of the test equipment and a tape display of its sensitivity.
The slides used in this presentation are also enclosed.
Following this presentation, a detailed discussion of the CSB inspection results was presented using a video tape.
The conclusion reached at the end of the inspection is that no further degradation of the CSB has occurred and all patches and plugs are in place with no detectable or significant change from the installed condition.
No further cracking of the CSB has occurred and no crack propagation could be found.
FP&L does not propose to conduct any special CSB inspections in the future.
This matter must be reviewed and addressed by the NRC staff.
The basis of this review will be the final report of the inspection results.
This report should be available in March 1986.
/s/
Enclosures:
As stated cc w/enclosures:
See next page p
D elis;ef P,/vf/86 Donald E. Sells, Project Manager PWR Project Directorate ¹8 Division of PWR Licensing-B Distribution:
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Hr. Jack Shreve Office of the Public Counsel Room 4, Holland Building Tallahassee, Florida 32304 Resident Inspector c/o U.S.
NRC 7585 S.
Hwy AlA Jensen Beach, Florida 33457 State Planning 8 Development Clearinghouse Office of Planning
& Budget Executive Office of the Governor The Capitol Building Tallahassee, Florida 32301 Harold F. Reis, Esq.
Newman
& Holtzinger 1615 L Street, N.M.
Mashington, DC 20036 Norman A. Coll, Esq.
McCarthy, Steel, Hector and Davis 14th Floor, First National Bank Building Miami, Florida 33131 Administrator Department of Environmental Regulation Power Plant Siting Section State of Florida 2600 Blair Stone Road Tallahassee, Florida 32301 Mr. Meldon B. Lewis, County Administrator St.
Lucie County 2300 Virginia Avenue, Room 104 Fort Pierce, Florida 33450 Mr. Charles B. Brinkman, Manager Washington - Nuclear Operations Combustion Engineering, Inc.
7910 Moodmont Avenue
- Bethesda, Haryland 20814 St.
Lucie Pt Hr. Allan Schubert, Manager Public Health Physicist Department of Health and Rehabilitative Services 1323 Winewood Blvd, Tal'lahassee, Florida 32301 Regional Administrator, Region II U. S.
Nuclear Regulatory Commission Executive Director for Operations 101 Marietta Street N.M., Suite 2900 Atlanta, Georgia 30323
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Licensee:
Florida Powe nd Light Company
~Copies also sent to those people on service (cc) list for subject plant(s).
Docket File NRC PDR L PDR PBD-8 Rdg AThadani DSells OELD EJordan BGrimes ACRS-10
~NRC P ti i t
FHiraglia FSchroeder DCrutchfield CYCheng
FP&L/C~re Support Barrel Inspection Y,ing February 4, 1986 List of Attendees NRC F. J. Miraglia F. Schroeder D. Crutchfield A. Thadani D.
E. Sells C.
Y. Cheng FP8IL/CE R.
Stevens M. A. Schoppman M.
E.
Lamp P.
Leombroni C. Molnar.
J. Mullooly
FLORIDA POWER 8 LIGHT CO CORE SUPPORT BARREL INSPECTION ST LUCIE UNIT 1
FEBRUARY, 1986
L(ilail INTRODUCTION FPL CHRONOLOGICAL REVIEW FPL INSPECTION COMMITMENTS CURRENT STATUS INSPECTION PROGRAM C-E CSB INSPECTION DURING POST-CYCLE 6
REFUELING OUTAGE INSPECTION CONCLUSIONS FUTURE INSPECTION FPL
PROBLEM DETECTED 5/85 PRELIMINARY ASSESSMENT 04/12/85 RECOVERY: PLAN FORMULATED 04/25/85 REVIEWED LPM R
IVM DATA 06/05/85 REVIEWED TS/CSB INSPECTION RESULTS 08/16/85 PROPOSED FINAL REPORT CONTENT 09/22/8>>
PRESENTED FAILURE MECHANISM ANALYSIS ll/10/85 FINAL REPORT SUBMITTED TO NRC 02/10/84 NRC CONCURS WITH RETURN TO POWER 05/14/84 RETURN TO POWER 05/16/84 PRE-INSPECTION BRIEFING 06/04/85
CSB REPAIRED AREA INSPECTION DURING POST-CYCLE 6
REFUELING OUTAGE CONSIDER ENHANCEMENTS TO CSB INSPECTION TECHNIQUES IMPROVED STABILITY AND REPEATABILITY OF DELIVERY SYSTEM VARIABLE INTENSITY OBLIQUE LIGHTING
POST CYCLE 6 CSB INSPECTION COMPLETED PLANT RETURNED TO SERVICE FINAL INSPECTION REPORT BEING PREPARED
DESCRIPTION OF COMPONENTS TO BE INSPECTED DESCRIPTION OF TYPICAL INSTALLED PLUG AND PATCH INSPECTION PROGRAM VISUAL INSPECTION TECHNIQUE MECHANICAL INSPECTION TECHNIQUE INSPECTION RESULTS AND CONCLUSIONS
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PATCHES EVIDENCE OF MOVEMENT ORIENTATION OF INSTALLATION COMPARE TO BASELINE DOCUMENT RESULTS EXAMINE ARRESTED CRACKS 8
ADJACENT BASEMETAL VISUAL EXAMINATION FOR CRACK EXTENSION COMPARE TO BASELINE DATA USE BACKUP SUPPLEMENTAL PHOTOS DOCUMENT RESULTS
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MEASURE PLUG FLANGE DEFLECTION COMPARE TO'CREENING CRITERIA DOCUMENT RESULTS
VISUAL INSPECTION NO NEW CRACK INDICATIONS WERE NOTED NO PLUG OR PATCH MOVEMENT OBSERVED THE CSB CONDITION APPEARS UNCHANGED FROM THE 1980 POST-REPAIR BASELINE INSPECTION MECHANICAL INSPECTION RESIDUAL PLUG FLANGE DEFLECTIONS ALL ABOVE SCREENING CRITERIA
F CSB ACCEPTABLE FOR CONTINUED SERVICE PLUGS AND PATCHES ACCEPTABLE FOR CONTINUED SERVICE
FUTURE INSPECTIONS AS REQUIRED BY ISI PROGRAH VISUAL INSPECTION
FINAL INSPECTION REPORT AVAILABLE NARCH '86
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