ML19317F611

Final Deficiency Rept Re Victoreen Calibrator Use in Calibr of Radiation Monitor.Intercomparison of Facility & Vendor Calibrators Caused Error.Calibr Procedure Instituted Correlating Sample & Technician Data Prior to Calibr

ML19317F611
Person / Time
Site:	Davis Besse
Issue date:	02/22/1977
From:	Roe L TOLEDO EDISON CO.
To:
References
225, NUDOCS 8001150929
Download: ML19317F611 (3)

Text

, Rw T012D0 EDISON CGIFAET o*TE On oOCuwE=T oATE aECE'vfo ao~

IAbEIJ. IEst .x 2/22/77 2 9 /77 7 0145 LTR wtWO RErvnT OTHER

. 21 TO OHiG- CC OYMER J.G. Eu rLER gg AECION III ^******

ACTICN NECESSARY CONCURRENCE O CLA5518 POST OF#sCE NO ACTION NECESSARY COMMENT O .-

FtLE CCOE REG NO DE SCRiPYtON %n se baewest REFERREo TO DATE RECEfvED ev DATE RE: DEFICIENCT INCE. VIES TM l VICTMEN FIIIB cALTMATtR USS IN TM ROT /biARNICT,2/28 CALTMATION OF TEE ARIA RADIA22tlE an,unH ICEIT M US D AT Tar nAVYL e w M EL3&g IE P g 3 ENctosuaES EMM usaAA W l. mag; -->r - n M

-wMyiln (a 1

c...~., u,_ . a

[

L PDR,umt, NSIC & IIC b REuAR=s i

t I

t I

u s NUCLEAR REcutATORv CcvuissioN =cRu C2Ns O' l 0

w gr )

,L v

gF}l

-@a a l 8001150 O (Yf 3

s i

. TOLEDO EEE31:3CIrJ LOWELL E. ROE v,e. pr....en Fecdeces Development Serial No. 225 uim ase sa4a Docket No. 50-346 February 22, 1977 ~

Mr. James G. Keppler Regional Director, Region III Office of Inspection and Enforcement U.S. Nuclear Regulatory Cocsission 799 Roosevelt Road Glen Ellyn, Illinois 60137

Dear Mr. Keppler:

This letter is submitted as a final report in accordance with 10 CFR Part 50.55(e) regarding the deficiency involving the Victoreen Field Calibrator used in the calibration of the area radiation monitors used at the Davis-Besse Nuclear Pcwer Station Unit No.1. This was discussed by Mr. E. C. Novak, General Superintendent, Power Engineering and Construc-tion, with Mr. D. W. Hayes, NRC Region III Office of Inspection and Enforce-ment on July 23, 1976, and was reported as a deficiency.

Description of the Deficiencv During calibration of the Model 848-18, Field Calibration Kit, a human error was made in calculating the calibration correction factor to be applied to the calibrator. This error occurred during the interco=parison of the Davis-Besse calibrator with Victoreen's secondary standard field calibrator.

Corrective Action Victoreen has identified the source calibration problem which did not conform to the original source values. Victoreen investigated the above problem in the field and eventually returned the sources back to the factory where they were recalibrated. Victoreen has instituted a procedure where following a calibration by the Calibration Technician, two random sa=ples are tested by the Nuclear Calibration Engineer and by the Quality Assurance Engineer. The results of these two random samples are compared with the data taken by the Calibration Technician. A calibration correction factor is determined caly if the results of the two random samples correlate with the Calibration Technician's data.

o s

• HE TOLEDO EDISON CCMPANY EDtSON PLAZA 300 MADISCN AVENUE TCLEDO. CHIO 43352 ty _./ . :;

~~

. Mr. -James G. .Kgpplar ,

/') ,

Page Two -

February 22, 1977 8 ,. -

Safety Implications The correction of the deficiency as 4.escribed above prior to the operation of the facility assures that the health and safety of the public are not j eopardized.

Yours very truly,

/.

p. g -

LER:ss cc: Dr. Ernst Volgenau, Director Office of Inspection and Enforcement U. S. Nuclear Regulatory Commission .

Washington, D. C. 20555 e

• w #

e e e e

e g g

-='

' . - , ,-m. p