ML19274E873

Forwards 790327 Util Rept Re Cracked Splitter Plate at Facility

ML19274E873
Person / Time
Site:	North Anna
Issue date:	03/30/1979
From:	Christman J HUNTON & WILLIAMS
To:	Buck J, Mike Farrar, Rosenthal A NRC ATOMIC SAFETY & LICENSING APPEAL PANEL (ASLAP)
References
V-8-50-20-29-12, NUDOCS 7904280210
Download: ML19274E873 (2)

Text

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a NRC pc '" ~~ ' Misyy 9 HuxTox & WILLIA >ts 99M 707 tAsf MAm StattT P. o. Box 1535 RIcu>s own, VInoINIA 20212 TcL e e wo N E 2 0 4) 788-8200 Caste Mu=rwamo Wasarwororr, D. C. orrten March 30, 1979 aso ec~~suv. .. Ave.n. u. 2cose P. O. Box 1923o

't Lt r=0,e t G C 2) 393-7400

,.cc ~ o. V- 8-5 0- 20-2 9 -12 e..cer o .s ~o. <.c o 7..- 8368 Alan S. Rosenthal, Esquire Atomic Safety and Licensing Ap;eal Board U.S. Nuclear Regulatory Commission Washington, D.C. 20555 "i

._N Dr. John H. Buck "/ .

Atomic Safety and Licensing .7 .[.'

Appeal Board _, _.gr' U.S. Nuclear Regulatory Commission ...^ ~u' , . y Washington, D.C. 20555 Michael C. Farrar, Esquire Atomic Safety and Licensing

• Appeal Board U.S. Nuclear Regulatory Commission Washington, D.C. 20555 Virginia Electric and Power Company North Anna Power Station, Units 1 and 2 Docket Nos. 50-338 OL and 50-339 OL Gentlemen:

My understanding is that at this point your jurisdic-tion in the North Anna 1 and 2 operating licensing proceeding is limited to the three issues of turbine missiles, pumphouse settlement, and radon. Nevertheless, for your information I am enclosing a recent 10 CFR Part 21 report filed with the Staff on a different matter, a cracked splitter plate at 7 904280216

HUNTON & WILLIAMS North Anna 2.

Yours very truly,

. f ames N. Christman Counsel for Virginia Electric and Power Company cc: Daniel T. Swanson, Esquire Richard M. Foster, Esquire Anthony J. Gambardella, Esquire Atomic Safety and Licensing Board Panel Atomic Safety and Licensing Appeal Board Chief, Docketing & Service Section Enclosure 126/625

9 March 27, 1973 Serial No.191 Mr. James P. O'Reilly, Oirector PSELC/CGC:mac:vang Office of Inspection L Enforcement U. S. tiuclear Regulatory Comission Docket No. 50-339 Region II 101 tiarietta Street, Suite 3100 Atlanta, Georgia 30303

Dear Sir:

On March 22, 1979, a report was m5de under tne provisions of 10CFR50.55(e) concerning a cracked splitter plate in the reactor coolant system.

In accordance with the reporting requirements of 10CFR21, the following information is subnitted:

A. Name and address of reporting individual:

Mr. E. A. Saum, Executive Manager Licensing and Quality Assurance Virginit Electric and Power Company P'. O. Sox 26666 Richmond, Virginia 23261

3. Facility, activity, and/or component affected:

Nortn Anna Power Station, Unit 2 "C".

Splitter plate in suction pipe to reactor coolant pump C. Name of firm constructing'the facility or supplying the component, activity or service.

Westingicuse Electric Corporation P. O. Box 353 Pitts::ur;5, Pannsylvania 15230 D. Description of dafect, deficiency, or failure to comoly:

A crac'<es splitter plate has been discovered in the reactcr coolant The splitter pipe leading ir.to the R. C. Puma "C" i suction volute.

plate is attached inside the R. C. P pe by Welds on both sides of the plate to longitudinal bosses on each side cf the pipe inside diama ter.

Two cracks have been discovered in the vicinity of the plate to pioe welded interf ace.

E. Data of catarmi .ation of reportability: h March ??, U79

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7 ? .y J94'oj37

M %Y ,.

Mr. J ::es ? . J '.1? i l i y , '. i cec tac 2 3:-ilar c: ponsn:3, actiti*.i2s, or sc vices:

'6ce:- Anna Unit i

3. Cc-es::ive iction which n33 been, is being or wili be ta%en, the incitisual risponsiole and the length of time to complate tna action:

'Jaldment samples of tha splitter plate / weld metal / pipe boss transition are being analyzed to cetermine the cause of failure.

Inspection of the splitter plates in ioops A and 3 is in progress. .

H. Other information:

tiene Any information not available at this time will be submitted in a folle 4-up letter as a 30-day report.

Should you require further information, please contact this office. ,

Very truly yours,

~

S. . . . !:

Sam. C. Brown, Jr.

Senior Vice President Power Station Engineering and Construction ec: 01 ector, Office of Inspection anc Enforcement (3)