ML18030A276

Interim Deficiency Rept Re Automatic Switch Co Solenoid Valves,Initially Reported on 810317.Solenoid Valves Installed Contain Internals Which Are Susceptible to Swelling & Deterioration.Addl Info by June 1981

ML18030A276
Person / Time
Site:	Susquehanna
Issue date:	05/04/1981
From:	Curtis N PENNSYLVANIA POWER & LIGHT CO.
To:	Grier B NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
References
100450, 100508, 10CFR-050.55E, 10CFR-50.55E, PLA-749, NUDOCS 8105080308
Download: ML18030A276 (5)

Text

REGULATORY INFORMATION DISTRIBUTION SYSTEM (RIOS)

ACCESSION NBR 8105080308 OOC ~ DATE! 81/05/04 '

NOTARIZED Z 'O

~ DOCKET FACIL:50-387 Susquehanna Steam Electric Stationr

~

Unit lr 1 Penns y lva 0503)D357 50-388 Susquehanna Steam Electric Stationr Unit 2 Penns y va 1 .050003.

AU~A~~ AUTHOR AFFILIATION CURTIS r N ~ H ~ pennsylvania Power R Light Coo REC IP ~ NAME RECIPIENT AFFILIATION GRIERr 8 ~ H ~ Region 1r Phil adelphiar Of fice of the Director

SUBJECT:

Inter'im deficiency rept re Automatic Switch Co solenoid valvesrinitially reported on 810317.Solenoid valves installed contain internals which are susceptible to swelling 8 deterioration ~ Addi info by June 1981.

DISTRIBUTION CODE: SOIOS COPIES RECEIVED:LTR TITLE: Construction Deficiency Report (10CFR50.55E)

Q ENCL 0 SIZE:

SI E:

NOTES:Send I8,E 3 copies FSAR L all 05000387 IEE 3 copies FSAR 8 all amends.

amends'end 05000388 RECIPIENT COPIES RECIPIENT COPIES ID CODE/NAME LTTR ENCL ID CODE/NAME LTTR ENCL ACTION: A/9 LI CENSNG 04 LIC BR ¹2 BC 05 1 RUSHBROOKRM, 06 STARKERS 07 INTERNAL: ASLBP/J ~ HARO D/OIR HUM FAC15 EDO 8, STAFF 19 EQUIP QUAL BR 1 1 HYV/GEO BR 22 ISE 09 IE/EES LIC QUAL HR 12 MPA 20 NRC POR 02 GELD 21 P M-WT EV 13 QA BR 14 E~F ILE 01 STANDRDS DEY 21 EXTERNAL: ACRS ib 16 LPOR 03 NSIC 08 1 gg 1 2 )SSI!

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0 TOTAL NU<BER OF COPIES RE4iUIRED: LTTR 37 ENCL

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TWO NORTH NINTH STREET, ALLENTOWN, PA. I 8101 PHONEL (215) 770-SISI NORMAN W. CURTIS Vice President-Eniiineenng S Canstnrction-Nuclear 77@5381 May 4, 1981 Mr. Boyce H. Grier Director, Region I U. S. Nuclear Regulatory Commission 631 Park Avenue King of Prussia, Pennsylvania 19406 SUSQUEHANNA STEAM ELECTRIC STATION INTERIM REPORT OF A DEFICIENCY RELATING TO AUTOMATIC SWITCH COMPANY (ASCO) SOLENOID VALVES ERs 100450/100508 FILES 840-4/821-10 PLA-749

Dear Mr. Grier:

This letter serves to provide the Commission with an interim report. of a deficiency involving Automatic Switch Company solenoid valves. The deficiency was originally reported by telephone to NRC Region I Reactor Inspector, Mr.'. Narrow, by Mr. A. R. Sabol of PPGL on March 17, 1981. During that conversation, Mr. Narrow was advised that the condition was being evaluated for reportability under the provisions of 10 CFR S0.55(e) .

PPGL Nuclear Plant Engineering is currently investigating the condition and, based upon results to date, has determined the condition to be reportable under the provisions of 10 CFR 50.5S(e) .

Specifically, it has been determined that ASCO solenoid valves installed at Susquehanna SES, contain internals which are susceptible to swelling and deterioration when brought into contact with oils. Contamination o'f these solenoid valves has been experienced in the Reactor Building Chilled Water system. In this system, ASCO solenoid valves are used to control the operation of air-operated, containment isolation valves. These air operated containment isolation valves include a component used as a filter-lubricator-regulator (the source of the oil) which is contaminating these ASCO solenoid valve. internals.

PPGL Nuclear Plant Engineering has determined that failure of the, ASCO solenoid valves could result in a failure of the associated Reactor Building Chilled Water system isolation valves to close. Based upon a failure sequence of this nature, the deficiency, had it gone undetected, could have adversely affected safe operation of the plant.

g~(1 5

PENNSYLVANIA POWER 8L LIGHT COMPANY

Mr. Boyce H. Grier May 4, 1981 PPSL Nuclear Plant Engineering has further det6rmined that similar conditions may exist in the Standby Gas Treatment ang Liquid Radwaste Collection Systems Investigation is currently in progress to identify all ASCO solenoid valves which could be susceptible to an oil environment and to replace these valve internals with consideration toward information provided in NRC IE Information Notice No. 80-11.

Since the details of this report provide information relevant to the reporting requirements of 10 CFR 21, this correspondence is considered to also discharge any formal responsibility PPGL may have in compliance thereto We expect to provide additional information on this deficiency in June, 1981 trust the Commission will find this report to be acceptable

'e Very truly yours,

'A3 N. W. Curtis Vice President-Engineering a Construction-Nuclear WHG:sab ccc Mr. Victor'tello (15)

Director-Office of Inspection 6 Enforcement U. S. Nuclear Regulatory Commission Washington, D.C. 20555 Mr. G. McDonald, Director (1)

Office of Management Information a Program Control U. S. Nuclear Regulatory Commission Washington, D.C. 20555 Mr. Gary Rhoads U. S. Nuclear Regulatory Commission P.O. Box 52 Shickshinny, PA 18655