ML20211G595
| ML20211G595 | |
| Person / Time | |
|---|---|
| Site: | Brunswick  |
| Issue date: | 06/12/1986 |
| From: | Muller D Office of Nuclear Reactor Regulation |
| To: | Utley E CAROLINA POWER & LIGHT CO. |
| Shared Package | |
| ML20211G600 | List: |
| References | |
| GL-84-11, NUDOCS 8606200024 | |
| Download: ML20211G595 (3) | |
Text
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Jun2 12,1986 Docket No. 50-324 DISTRIBUTION 10ccket.Fileil NRC PDR Local PDR PD#2 File Mr. E. E. _ Utley RBernero Senior Executive Vice President Power Supply and Engineering & Construction SNorris Carolina Power & Light Company ESylvester Post Office Box 1551 EJordan Raleigh, North Carolina - 27602 BGrimes JPartlow
Dear Mr. Utley:
ACRS(10)
OELD
SUBJECT:
INTERGRANULAR STRESS CORR 0SION CRACKING (IGSCC) PROGRAM FOR RELOAD 6 0UTAGE Re:
Brunswick Steam Electric Plant, Unit 2 By letter dated November 1,1985, you submitted your plans for inspection, repair and replacement of piping susceptible to intergranular stress corrosion cracking (IGSCC) during.the Brunswick Steam Electric Plant (BSEP), Unit 2 Reload 6 outage which began December 1,- 1985. The program was to include piping and welds in the recirculation system, the reactor water cleanup (RWCU) system and the residual heat removal (RHR) system in accordance with the guidance in Generic Letter 84-11. " Inspection of BWR Stainless Steel Piping,"
dated April 19, 1984. Subsequent to implementation of the IGSCC, your submittal of May 8, 1986 provided a description of:
(1) the Induction Heating Stress Improvement (IHSI) that was performed on recirculation system welds, (2) theRWCUsystempipereplacementprogram,(3)theIGSCCexaminationprogram, and (4) the weld-overlay repairs performed during the Reload 6 outage.
We have reviewed the results of your Reload 6 IGSCC program as described in
.the May 8, 1986 submittal and conclude that the IGSCC inspection,_ repairs and replacement provide _ adequate assurance that BSEP, Unit 2 can be safely operated until the middle of the upcoming 18-month fuel cycle. Operation past
--mid-cycle is contingent upon providing assurance that two unrepaired nozzle to safe-end welds discussed in Section 3.2 of our enclosed Safety Evaluation do not exhibit excessive crack growth. To that end, an inspection of these two welds should be performed 8 to 10 months after startup from the Reload 6 outage.
Therefore, we request that you provide your comitment and schedule for performance of a mid-cycle inspection, or justification for not performing the inspection, within 30 days of receipt of this letter. Mid-cycle inspection results should be submitted.for staff review prior to start-up from the mid-cycle inspection.
I 8606200024 860612 PDR ADOCK 03000324 G
ff
'l v
-l In addition, we request that your plans for inspection and/or modification of the recirculation system or any other service sensitive austenitic stainless
' steel: piping systems operating over'200 F during the next refueling outage be submitted for our review and comment at least three months prior to the start of the refueling outage.
Sincerely, Original signed by/
Daniel R. Muller, Director BWR Project Directorate #2
-Division of BWR Licensing
Enclosure:
As stated cc w/ enclosure:
Sce next page
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.SNoOYsTfs ESylvester DM er 6/10/86-6/6L/86 6//L/86
~
r Mr. E. E. Utley.
Brunswick Steam Electric Plant
' Carolina ~ Power & Light Company Units 1 and 2 cc:
Richard E. Jones, Esquire Vice President and Senior Counsel Carolina Power & Light Company 411 Fayetteville Street Mall Raleigh, North Carolina 27602 Thomas A. Baxter, Esquire Shaw, Pittman, Potts & Trowbridge 1800 M Street N.W.
Washington, D.C.
20036
'Mr. D. E. Hollar.
-Associate General Counsel Carolina Power & Light Company P. O. Box.1551 Raleigh, North Carolina 27602 Mrs. Chrys Baggett State Clearinghouse Budget and Management 116 West Jones. Street Raleigh, North Carolina 27603 Resident Inspector U. S. Nuclear Regulatory Commission Star Route 1 Post Office Cox 208 l
Southport, dortn Carolina 28461 Regional Administrator, Region II U. S. Nuclear Regulatory Comission 101'Marietta Street, Suite 2900 l
Atlanta, Georgia 30323 i
Mr. Dayne H. Brown, Chief Radiation Protection Branch
(
Division of Facility Services N.C. Department of Human Resources Post Office Box 12200 Raleigh, North Carolina 27605 L
Mr. Christopher Chappell, Chairman Board of Comissioners i=
Post Office Box 249 l
Bolivia, North Carolina 28422 l
l l
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