ML18038B952
| ML18038B952 | |
| Person / Time | |
|---|---|
| Site: | Browns Ferry  |
| Issue date: | 09/15/1997 |
| From: | Abney T TENNESSEE VALLEY AUTHORITY |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| References | |
| NUDOCS 9709230311 | |
| Download: ML18038B952 (14) | |
Text
CATEGORY REGULBT INFORMATION DISTRIBUTION STEM (RIDE)
ACCESSION. NBR:9709230311 DOC.DATE: 97/09/15 NOTARIZED: NO DOCKET I FACIL:50-296 Browns Ferry Nuclear Power Station, Unit 3, Tennessee 05000296
>-AUTH.NAME AUTHOR AFFILIATION ABNEY,T.E.
Tennessee Valley Authority RECIP.NAME RECIPIENT AFFILIATION Document Control Branch (Document Control Desk)
SUBJECT:
Provides rev, to Unit 3,ASME Section XI,ISI summary rept (NIS-1) for Cycle 7 operation. Util initially submitted.NIS-1 summary rept by ltr dtd 970610.
DISTRIBUTION CODE: A047D COPIES RECEIVED:LTR ENCL SIZE:
TITLE: OR Submittal: Inservice/Testing/Relief from ASME Code GL-89-04 NOTES:
INTERNAL:
RECIPIENT ID CODE/NAME PD2-3 WILLIAMS,J.
ENTER N
OC RES/DET/EIB COPIES LTTR ENCL 1
1 1
1 1
1 1
1 1
1 1
1 RECIPIENT ID CODE/NAME PD2-3-PD AEOD/SPD/RAB NRR/DE/EMEB OGC/HDS3 RES/DET/EMMEB COPIES LTTR ENCL 1
1 1
1 1
1 1
0 1
1 0
EXTERNAL: LITCO ANDERSON NRC PDR 1
1 1
1 NOAC 1
1 D
U NOTE TO ALL MRIDSM RECIPIENTS:
PLEASE HELP US TO REDUCE WASTE. TO HAVE YOUR NAME OR ORGANIZATION REMOVED FROM DISTRIBUTION LISTS OR REDUCE THE NUMBER OF COPIES RECEIVED BY YOU OR YOUR ORGANIZATION, CONTACT THE DOCUMENT CONTROL DESK (DCD)
ON EXTENSION 415-2083 TOTAL NUMBER OF COPIES REQUIRED:
LTTR 14 ENCL 13
'(
Tennessee Valley Authority, Post Office Box 2000, Decatur, Ahbama 35609-2000 September 15, 1997 U.S. Nuclear Regulatory Commission ATTN:
Document Control Desk Washington, D.C.
20555 Gentlemen:
In the Matter of Tennessee Valley Authority Docket No. 50-296 BROWNS FERRY NUCLEAR PLANT (BFN)
UNIT 3 AMERICAN SOCIETY OF MECHANICAL ENGINEERS SECTION XI CODEg INSERVICE INSPECTION FOR CYCLE 7 OPERATION
. REVISION TO NIS-1
SUMMARY
REPORT This letter provides a revision to the BFN Unit 3, American Society of Mechanical Engineers (ASME)Section XI, inservice inspection (ISI) summary report (NIS-1) for Cycle 7
operation.
TVA initially submitted the NIS-1 summary report by letter dated June 10, 1997.
The enclosed revision deletes the Reactor Pressure Vessel (RPV)
Head nozzle weld, N6A (Code Category B-D), from the page that lists examination limitations that require a request for relief.
The RPV N6A nozzle weld was ultrasonically examined during the Unit 3, Cycle 7 refueling outage.
An examination limitation was noted (51.4 percent due to nozzle configuration) and addressed in the ASME Section XI, ISI NIS-1 summary report.
TVA also committed, in the above referenced letter, to submit a relief request for the RPV N6A nozzle weld based on the above examination coverage limitation.
After further analysis, TVA has concluded that ASME Code examination coverage of the RPV N6A nozzle weld was achieved by an additional scan from the inside nozzl'e bore with a zero degree search unit.
This scan supplements the 97092303ii 9709i5 PDR ADQCK 05000296 8
'I
C
U.S. Nuclear Regulatory Commission Page 2
September 15, 1997 conventional Code requirements of a 0, 45, and 60 degree scan from the outside diameter of the RPV head.
The method utilized during the outage to calculate the coverage did not take into consideration provisions allowed by the Code to supplement coverage with examinations performed from the inner bore of the nozzle.
The ASME Section V Code, 1989 Edition, Nondestructive Examination, Article 4, Paragraph T-441.3.2.6 states in part:
Where the ultrasonic beams are directed essentially normal to the plane of the weld (parallel to the surface of the material, as when the examination is conducted from the nozzle bore or flange face),
beam angles sufficien't to provide complete coverage of the weld from one direction shall be acceptable."
Since full ASME Code coverage has been achieved for the N6A
- nozzle, TVA is withdrawing its commitment to submit a relief request to address reduced NDE examination coverage.
The enclosure to this letter contains the revised page for the Unit 3 Cycle 7, ASME Section XI, ISI NIS-1 report, "Examinations Requiring Request For Relief."
Also enclosed is a revised page 1 of 16 of the "Examination Plan of Class 1 and 2 Components" from the NIS-1 report that deletes a comment referring to a proposed request for relief for the RPV N6A nozzle weld.
If you have any questions regarding these revisions, please contact me at (205) 729-2636.
S'erel T. E.
e Manager of icen and Ind stry A z.ng fairs Enclosure cc:
See page
V,
U.S. Nuclear Regulatory Commission Page 3
September 15, 1997 Enclosure cc (Enclosure):
Mr. Mark.S. Lesser, Branch Chief U.S. Nuclear Regulatory Commission Region II 61 Forsyth Street, S.W.
Suite 23T85
- Atlanta, Georgia 30303 NRC Resident Inspector Browns Ferry Nuclear Plant 10833 Shaw Road
- Athens, Alabama 35611 Mr,. J.
F. Williams, Project Manager U.S. Nuclear Regulatory Commission One White Flint, North 11555 Rockville Pike Rockville, Maryland 20852
il
ENCLOSURE TENNESSEE VALLEY AUTHORITY BROWNS FERRY NUCLEAR PLANT (BFN)
'UNIT 3 AMERICAN SOCIETY OF MECHANICAL ENGINEERS (ASME), SECTION XI INSERVICE'NSPECTION (ISI),
PROGRAM
SUMMARY
REPORT (NIS-1) REVISION FOR CYCLE 7 OPERATION (SEE ATTACHED)
1
OWNER: TENNESSEE VALLEYAUTHORITY PLANT: BROWNS FERRY NUCLEARPLANT OFFICE OF NUCLEARPOWER P. O. BOX 2000 1101 MARKETSTREET DECATUR, ALABAMA35602 CHATTANOOGA,TENNESSEE 37402 UNIT:
THREE CERTIFICATE OF AUTHORIZATION:NOT REQUIRED.
COMMERCIALSERVICE DATE: MARCH 1, 1977 NATIONALBOARD NUMBERFOR UNIT: NOT REQUIRED.
EXAMINATIONSREQUIRING REQUEST FOR RELIEF The following items/components had examination limitations on NDE examinations outside those specified in Code Case N-460. The In-service Inspection Program 3-SIP.6.G willbe revised to incorporate these limitation in the form of Request for Relief (RFR). Program revisions, including Requests for Relief, willbe submitted to the NRC.
SYSTEM COMPONENT ID CODE CAT.
CALCULATED EXAM REPORT COVERAGE METHOD NUMBER RFR NO.
RHR-3-H-146-IA 3<7B452-1385-IA 3-47B452-1451-IA C-C C-C C-C 88 8%
89 4%
85 2%
MT R-0013 MT R%048 MT R-0018 3-ISIS 3-ISIS 3-ISI-4
0 0
I
~
A
PIANTt ItltOiYNSFFRRY NIICI.EAR PION'I'.O.
BOX 2000 DECATUR,ALABAhlA35602 OWNER:
TENNFSSFE VALLEYAIITIIORITY NUCLEAR POWER GROUP I IOI hIARKETSTREET CIIATTA EXAMREQUIREhIENI'9E-02 NOOGA, TENNESSEE 37402 CERTIFICATION OF AUTIIORIZATION:NOT REQUIRED UNIT:TIIREE CYCLE: 7 COhlhIERCIALSERYICE DATE: hIARCIII, 1977 NATIONALBOARD NUhIBER FOR \\INITtNOT REQUIRED System Component ISI Exam Item Exam Callbratlon Exam Identmcatlon Drawing/8ht Category Number Schedule Standard Date Exam Report Exam Comments Results RCH4-tV RCH-3-IV RCHQ-IV RCH4-2V RCH4-2V RCH 3-2V RCH 3-2V RCH4-2V RCH-3-2V N6A.IR NOA-IR N6A.IR N6A.IR RWR-3402.G 004 RWR-3002.G 004 RWR.3.002.G004 RWR.3402.G004 RWR44XI2-G004 RWR4-002-GO I 0 RWR4402-G010 RWR~2-GO I 0 IS I-0295A 01 ISI.0295-A 01 ISI-0295A 01 ISI41295A 01 ISI.0295A 01 ISI-0295A 01 ISI.0295A 01 ISI-0295A 01 ISI.0295-A 01 ISI.0295A 01 1st-0295A 01 ISI-0295A 01 ISI.0295.A 01 ISI.0295A 01 ISI41295A 01 ISI-0295A 01 ISI-0328-C 02 ISI-0328.C 02 ISI-0328.C 02 ISI-0328-C 02 ISI41328C 02 15141328.C 02 ISI-03284: 02 ISI41328C 02 8-A B.A 8-A 8-A B.A 8-A 8-A 8-A BD B.D BD B.D BD 8-D BD B.D BF B.F 8-F 8-F 8-F B.F B.F B.F ISI-0295A 01 BA 81.22 81.22 81.22 81.22 81.22 81.22 81.22 81.22 81.22 83.100 83.100 83.100 83.100 83.00 83.90 83.00 83.90 85.10 85,10 85.10 85.10 85.10 85.10 85.10 85.10 UT41 UTES UT40 UT41 UTES UT45 UT45 UT410 UT4IO UT-19L UT.21L UT-27L UT-32L UT-0 UT-0 UTERO PT UTES UTES UTASL UTRSL UTES UTES BF-19 BF-10 BF-10 BF-81 BF.81 BF-81 BF.81 BF-10 BF-10 BF-10 BF-19 BF-72 BF-70 BF-72 BF-70 BF-70 BF-72 19970228 19970302 19970301 10970301 10970301 10970301 19970301 10970228 10070301 19970227 19970227 19970227 19970228 19970228 19070228 10970228 10970227 10970301 10970301 BF-19 10970228 BF-10 19970228 BF-19 19970228 BF-10 19970228 BF-19 19970301 BF-19 '9970302 R.233 R.233 R.233 R.228 R.228 R.228 R-228 R.228 R.228 R.243 R-243 R-243 R.243 R.247 R.247 R-247 R.247 R.173 R.101 R-191 R-101 R-101 R.178 R.207 R-207 INDIC,EVALACCEPTABLE INDIC. EVALACCEPTABLE IND!C. EVALACCEPTABLE INDIC. EVALACCEPTABLE INDIC,EVALACCEPTABLE INDIC.EVAL.ACCEPTABLE N2860 RECIRC N2860 RECIRC N2860 RECIRC N2BO60 RECIRC N28@60 RECIRC ND2120 RECIRC ND2120 RECIRC ND2120 RECIRC Page I of16
40 hp h
17.
El
~