ML18219C215

LER 1978-008-00 Re Exceeded Reactor Coolant System Leakage Rate

ML18219C215
Person / Time
Site:	Cook
Issue date:	02/15/1978
From:	Shaller D Indiana Michigan Power Co
To:	James Keppler NRC/RGN-III
References
LER 1978-008-00
Download: ML18219C215 (2)

Text

~o' plDOll INDIANA& MICHIGANPDNE8 CONPANY DONALD C. COOK NUCLEAR PLANT P.O. Box 456, Bridgman, Michigan 49106 February 15, 1978'r.

J.G. Keppler, Regional Director Office of Inspection and Enforcement United States Nuclear Regulatory Commission Region III 799 Roosevelt Road Glen Ellyn, IL 60137 Operating License DPR-58 Docket No. 50-315

Dear Mr. Keppler:

Pursuant to the requirements of Appendix A Technical Specifications and the United States Nuclear Regulatory Commission Regulatory Guide 1.16, Revision 4, Section 2.b, the following report is submitted:

RO 50-315/78-08.

Sincerely, D.V. Shaller Plant Manager

/bab CC: J.E. Dolan R.W. Jurgensen G.E. Lien R. Kilburn R.J. Vollen BPI K.R. Baker RO:III R.C. Callen MPSC P.W. Steketee, Esq.

G. Charnoff, Esq.

R. Walsh, Esq.

G. Olson J.M. Hennigan PHSRC J.F. Stietzel Dir., IE (30 copies)

Dir., MIPC (3 copies) FEB )7t978

Form No. 4494 CONTROL BLOCK:

ICENSEE EVENT REPORT I (PLEASE PAINT ALL FTLGUIRED IMFEIRA4ATIOIII)

LICENSEE LICENSE EVENT NAME UCENSE NUMBER TYPF. TYPF

[oa'] LII[ I 0IC 0 Il 0 0 0 0 0 0 0 0 0 4 1 1 1 1 ~03

~

7 89 25 26 30 31 32 AEronr REPORT AI I'OAI I)A II Cntt;OOAY TYPF SOURCE OOCKFT NUMBLA tVENI OATF 7

~Ol col'I'T 8 57 58 59 80 61 0 5 0 0 3 1 5 68 69 0 1 1 0 7 8 74

~PLI 75 80 EVENT DESCRIPTION Qo 2 Reactor Coolant S stem leaka e rate exceeded the maximum allowable 10 m identified 8 9 80 Ioc3I I leaka e rate. The actual leaka e rate was determined to be a roxlmately 13 m. A 7 89 80 Ioc4j I Containment entr was made and the a arent source of leakage was a packing failure 7 8 9 80 Jog on the Pressurizer Auxiliar S ra valve, HARV-51.

7 8 9 80 Jog (RO 50-315/78-08) 7 8 9 PAME 80 SYSTFM CAUSE COMPONENT COMPONENT COOE COOm COMPONENT CODE SUPRA MANUFACTUREA VOLATION IN8 9LZLCJ 7 10 LSJ 11 12 V

17

~N 43 44 C 6 3 5 47 N

48 CAUSE DESCRIPTION

[oD~] A close ins ection of the valve confirmed that the ackin had failed on RV-51.

80 IoceI 7 8 9 80 pro]

7 8 9 80 FACILI I Y MLTHOO OF STAIIIS POWEA OTHER STATUS OISCOVEAY OISCOVEAY OESCAIPTiON Jig 5 ~10 0 NA 44 a NA 80 7 8 9 10 12 13 45 46 FORM OF ACTIVITY COh3TENT AELEASEO OF RELEASE AMOUNT OF ACTIVITY LOCATION OF RELEASE Jig Z Z NA 44 45 80 7 8 9 10 11 PERSONNEL EXPOSURES NUMBER TYPE OESCRIPTION pi~] ~00 0 Z NA 80 7 89 11 12 13 PERSONNEL INJURIES NUMBER OESCAIPTION

[g89 7

~oo o 11 12 80 OFFSITE CONSEQUENCES Q~g NA 7 8 9 80 LOSS OR DAMAGE TO FACILITY TYPE OESCAIPTION

~16 Z NA 7 89 10 80 PUBLICITY NA 7 8 9 80 ADDITIONAL FACTORS Jig A failure of this t e has not been reviousl ex erienced. The valve was satisfac-80 7 89 torily repaired and no further action is planned; 7 89 80 David G. >lizner 616-465-5901 PHONE: