ML13317B100

Forwards Tabulation of Data on Steam Generator Insp & Maint Reflecting Operating Experience W/Westinghouse PWR Steam Generators Through Jan 1982

ML13317B100
Person / Time
Site:	San Onofre
Issue date:	04/12/1982
From:	Crutchfield D Office of Nuclear Reactor Regulation
To:	Dietch R SOUTHERN CALIFORNIA EDISON CO.
References
LSO5-82-04-024, LSO5-82-4-24, TAC-47835, NUDOCS 8204260052
Download: ML13317B100 (4)

Text

DISTRIBUTION April 12, 1982 Docket NRC PDR Local PDR ORB Reading Docket No.,50-206 NSIC L

SO 5-824- 024 DCrutchfield HSmith WPaulson OELD Mr. R. Dietch, Vice President OI&E Nuclear Engineering and Operations ACRS (10)

Southern California Edison Company SEPB 2244 Walnut Grove Avenue ORAB Post Office Box 800 Roseinead, California 91770

SUBJECT:

STEAM GENERATOR INSPECTIONS RE:

San Onofre Nuclear Generating Station Unit 1 I am enclosing, for your information, a tabulation of data on steam generator inspection and maintenance. This table reflects operating experience with Westinghouse PWR Steam Generators through January 1982.

Sincerely, Original signed by Dennis M. Crutchfield, Chief Operating Reactors Branch #5 Division of Licensing

Enclosure:

As stated cc w/enclosure:

See next page 8b2 042bo5 OFIC~ ~TRB #5 DL-

1. 5 DL 6.J#5 SU O E W P

n.

DC..

SURNAME)

.P NRC FORM 318 (10-80) NRCM C240 OFFICIAL RECORD COPY USGPO: 1981-335-960

Mr. R. Dietch 2

April 12, 1992 C C Charles R. Kocher,.Assistant General Counsel Jdmes Beoletto, Esquire Southern California Edison Company PCist Office Box 800 Rcsemead, California 91770 David.R. Pigott Qirick, Herrington & Sutcliffe 6()0 Montgomery Street Sian Francisco, California 94111 Harry B. Stoehr San Diego Gas & Electric Company P. 0. Box 1831 San Diego, California 92112 Resident Inspector/San Onofre NPS c/o U. S. NRC P. 0. Box 4329 San Clemente, California -92672 I ayor City of San Clemente San Clemente, California 92672 Chairman 3oard of Supervisors County of San Diego San Diego, California 92101 California Department of Health ATTN:

Chief, Environmental Radiation Control Unit Radiological Health Section 714 P Street, Room 498 Sacramento, California 95814 U. S. Environmental Protection Agency Region IX Office

'ATTN: Regional Radiation Representative 215 Freemont Street San Francisco, California 94111 Robert H. Engelken, Regional Administrator Nuclear Regulatory Commission, Region V 1450 Maria Lane Walliut Creek, California 94596

SAN ONOFRE UNIT 1 STEAM GENERATOR TUBE LICENSING ACTIONS

• Date Tp 07/18/74 Letter transmitting-Regulatory Guide -1.83 and requesfing proposed change to the Techni-cal Specifications (TS).

04/01/77 AmendmeAt No. 25to license requires steam generator-to be-reinspected within 12 months*

from the datea of the amendment.

10/06/77 Order requiring that the licensee subtit-information needed to confirm the rate of growth of steam generator tube degradation In the vicinity of the old anti-vibration bars.

12/20/77 Amendment No. 29 pertains to eddy-current test.on steam generator tube degradation and requires steam generator inspections.

oAmendment No.-32 clarifies when the twelve-month Oirnspections of steam generators must benmade, which is in reference to Am~ndment No. 25.

04/20/78 Amendment No. 34 acknowledges that the results of the steam generator denting inspection program satisfy license requirements and, therefore, approved resumption of power opation, in reference to Amendment Nos. 25 and 32.

Amendment No. 37 acknowledges that inspection results indicate that the steam generator tube denting and support plate cracking have been connected.

We,therefore, found performance of subsequent steam generator inspections in accordance with r,.

TS 4.16 -acceptable.

06/08/81 Amendment No. 55 approves steam generator tube seevin

SAN ONOFRE UNIT 1._

STEAM GENERATOR TUBE INSPDECTION ANDO PLUGGING ISTOR No.-Defects Primary to

.Type of Requiriflq No.edSeye/u Tled No. Tubes.

Secondary Total Defet Rerd Reair p~qdSevdP~~

Date inspected Leakagegpm A

B C

S.G. Nunber A/B/C A/B/C cold A/B/C Factory 10/70

'/001

/

-/-/

0/

02/72

-/-/6770.33 C S/G 9/

01/72

-/920/-

-/98/-

0/01 Cr 07/72

-/-/8 0.0 S/G

/

01/73 06/73 2700/1273/721 1156/544/351 4/5/6 h

2/6 4/-/2/-I 03/75 788/721/900 891/1408/344 4/2/12 06/75 06/75 07/76 10/76 1397/1050/590 385/0/0 13/19/1 h/13/1 8/-I 5/-I 09/77 -

2550/2550/2480 0/0/0 1/-I-10/73 42/-/75 4/471/-/-

7//./4

//

4/78,

697/0/746 2/92 9/78 630/685/523 458/226/226 24/9/25 (Gen.

Insp.)

9/78 671/683/548

-/-/

(AVB) 9/78 314/44/432 18/-/31 (Denting) 6/79 639/0/215

-0/0 S/G 1/-/-

a /-//I-I 4/80 3699/3744/3670 1998/652/360 0./146/0 jj~

ofSeconadrtid 4/Leakage qh-Wear-aan ana

.n 6/00.3 C3524528 S/G4--/1/

TOTALS 941-/0/

09o ro 4//1 h27/42/2.%89 248//25

/29 c-IGA~~

g

-etn d-Pitting~0/0 A-ea S/Gns 21/-/braio aa AV