ML20056D639

Forwards SE Approving Licensee 930305 Inservice Insp Relief Requests B-10,B-11 & Code Case N-496

ML20056D639
Person / Time
Site:	San Onofre
Issue date:	07/27/1993
From:	Quay T Office of Nuclear Reactor Regulation
To:	Guiles E, Ray H SAN DIEGO GAS & ELECTRIC CO., SOUTHERN CALIFORNIA EDISON CO.
Shared Package
ML20056D640	List: ML20056D639 ML20056D642
References
TAC-M85943, TAC-M85944, NUDOCS 9308170241
Download: ML20056D639 (3)

Text

y -

&z

 ! Docket:Nos 50-361 July 27,1993 -

Ecnd 50-362 qb Mr. Harold B. Ray. Mr. Edwin A. Guiles n-  : Senior'Vice President Vice President I Southern California Edison' Co. Engineering and'0perations

_Irvine Operations Center San Diego Gas & Electric Co.

, i 23 Parker Street' 101 Ash Street

< Irvine,; California' 92718 San Diego, California 92112

~

. Gentlemen:

SUBJECT:

INSERVICE INSPECTION RELIEF REQUESTS B-10, B-ll, AND-CODE CASE N-496

• FOR SAN ON0FRE NUCLEAR GENERATING STATION, UNITS 2 AND 3 (TAC NOS.

P M85943 AND M85944)

In a letter dated March 5,1993, Southern California Edison (SCE) submitted two relief requests, B-10 and B-11, to use alternative requirements to the 197'i Edition, through Summer of 1979 Addenda, of the American Society of

. Mechanical' Engineers (ASME) Boiler and Pressure Vessel Code at San Onofre Nuclear Generating Station (SONGS), Units 2 and 3. In a letter dated August 24,-1992, the licensee requested approval for the use of helical coil  ;

threaded inserts in steam generator manway and handhole stud holes.at SONGS, Units ~2 and 3. Specifically, the licensee seeks to install these inserts under the aegis of ASME Code Case N-496,.which was approved on March 14, 1991,

but has not yet been endorsed by the U.S. Nuclear Regulatory Commission.

a. ,

p ' Based on the information provided by the licensee, the NRC staff has concluded L

~

,that, pursuant to 10 CFR 50.55a(a)(3)(i), the alternative examinations for '

E Relief Request Nos.-B-10 and B-ll may be used. In addition, the staff concluded.that, pursuant to 10 CFR 50.55a(a)(3)(i), the licensee may use Code Case N-496 to employ helical coil threaded inserts as needed. The staff's L Safety Evaluation' is enclosed. -

t ,

L Sincerely, h

Original signed by:

Theodore R. Quay, Director Project' Directorate'V _

Division of Reactor. Projects III/IV/V Office of Nuclear Reactor Regulation

Enclosure:

Safety Evaluation cc w/ enclosure:

See next page DISTRIBUTION:

. Docket. File NRC & Local PDRs PDV Reading File Wm JRoe~ EAdensam TQaay MFields - DFoster .

0GC (15B18)

ACRS--(10)(P315) KPerkins, RV

. 4 % Mo*N & c1 cl&fY pq))J )'

o m CE PDV/LA' j L b PDV/PM_ OGC ,

BC/EMCID,d- PDV/DMS  ;

1 WE - DFoster-Curseen MF[Nds / g N osn[ der TCuay

[

WE / / ~

1/ Ik 93 7 '//f /93 7 / 1 //93 7 / 2 /93 d

c. 7/ TT /93 { '

OFFICIAL RECORD COPY DOCUMENT NAME: S085943.LlR L n

930?170241-930727

PDR p

ADOCK 05000361 PDR-EW m a ; %.$5 E [$$$ hh bb -

- w t,~

[ *'*f e"- '

UNITED STATES f .' NUCLEAR REGULATORY. COMMISSION

• C. WASHINGTON, D.C. 20066 0001 ,

a

. E' Suly 27,1993 v  ?%,, ...../ .

K U

Docket Nos. 50-361 and 50-362-

• v .

Mr. Harold B. Ray Mr. Edwin A. Guiles -i Senior Vice President Vice President  :

Southern California Edison Co. Engineering and Operations L

.Irvine Operations Center San Diego Gas & Electric Co.

E 23 Parker Street- 101 Ash Street

Irvine, California 92718 San Diego, California 92112  ;

~

Gentlemen:

SUBJECT:

INSERVICE INSPECTION RELIEF REQUESTS B-10, B-ll, AND CODE CASE N-496 ,

FOR SAN ON0FRE NUCLEAR GENERATING STATION, UNITS 2 AND 3 (TAC NOS.

M85943 AND M85944)

In'a-letter dated March 5, 1993, Southern California Edison (SCE) submitted two relief requests, B-10 and B-II, to use alternative isquirements to the 1977 Edition, through Summer of 1979 Addenda,- of the American Society of 1 Mechanical Engineers (ASME) Bo'.ler and Pressure Vessel Code at San Onofre 1 Nuclear Generating Station (SONGS), Units 2 and 3. In a letter dated  :

August'24,1992,: the licensee requested. approval for the use of helical coil *

-threaded inserts in steam generator manway and handhole stud holes at SONGS,

• Units 2 and 3. Specifically, the licensee seeks to install these inserts under the aegis of ASME Code Case N-496, which was approved on March 14, 1991,  ;

but has not yet been endorsed by the U.S. Nuclear Regulatory Commission.

Based on the-information provided by the licensee, the NRC staff has concluded '

that, pursuant to 10 CFR 50.55a(a)(3)(i), the alternative: examinations-for

g. Relief Request Nos. B-10 and B-11 may be used. In addition, the staff concluded that, pursuant to 10 CFR 50.55a(a)(3)(1), the licensee may use Code t

. Case N-496 to reloy helical coil threaded inserts as needed. The staff's ,

- Safety Evaluatic.r is enclosed.

Sincerely, p

fbh$ j Theodore'R. Quay, Director Project Directorate V >

Division of Reactor Projects III/IV/V -l Office of Nuclear Reactor Regulation

Enclosure:

Safety Evaluation o .

.cc w/ enclosure:

See next page p

Messrs. Ray and Guiles San Onofre Nuclear Generating '

Southern California Edison Company Station, Unit Nos. 2 and 3 CC*

James A. Beoletto, Esq. Mr. Richard J. Kosiba, Project Manager Southern California Edison Company Bechtel Power Corporation Irvine Operations Center 12440 E. Imperial Highway '

23 Parker Street Norwalk, California 90650 Irvine, California 92718 Mr. Robert G. Lacy Chairman, P,oard of Supervisors Manager, Nuclear Department ,

County of San Diego San Diego Gas & Electric Company

~

1600 Pacific Highway, Room 335 P. O. Box 1831 San Diego, California 92101 San Diego, California 92112 Alan R. Watts, Esq. Mr. Steve Hsu >

Rourke & Woodruff Radiologic Health Branch 701 S. Parker St. No. 7000 State Department of Health Services Orange, California 92668-4702 Post Office Box 942732 Sacremento, California 94234 Mr. Sherwin Harris Resource Project Manager Public Utilities Department

City of Riversids Resident Inspector / San Onofre NPS 3900 Main Street c/o U.S. Nuclear Regulatory Commission Riverside, California 92522 Post Office Box 4329 San Clemente, California 92674 ,

Mr. Charles B. Brinkman, Manager Washington Nuclear Operations ABB Combustion Engineering Nuclear Power Mayor 12300 Twinbrook Parkway, Suite 330 city of San Clemente Rockville, Maryland 20852 100 Avenida Presidio San Clemente, California 92672 Mr. R. W. Krieger, Station Manager Regional Administrator, Region V Southern California Edison Company U.S. Nuclear Regulatory Commission San Onofre Nuclear Generating Station 1450 Maria Lane, Suite 210 ,

P. O. Box 128 Walnut Creek, California 94596 San Clemente, California 92674-0128 Mr. Don J. Womeldorf Chief, Environmental Management Branch  ;

California Department of Health Services 710 P Street, Room 616 Sacramento, California 95814 h

t 9

>