ML20023A736

Forwards LER 82-036/03L-0.Detailed Event Analysis Encl

ML20023A736
Person / Time
Site:	Fort Saint Vrain
Issue date:	10/08/1982
From:	Warembourg D PUBLIC SERVICE CO. OF COLORADO
To:	Jay Collins NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV)
Shared Package
ML20023A737	List: ML20023A736 ML20023A745
References
P-82444, NUDOCS 8210190537
Download: ML20023A736 (3)

Text

-

l Public servlee company of odlemdo I

. 16805 Road 19 1/2, Platteville, Colorado 80651-9298 g@b October 8, 1982 @",k A Fort St. Vrain - 4 Unit No. 1 P-82444

\\ .

?. Oh g1 %ag g

%s Mr.= John T. Collins, Regional Administrator Region IV Nuclear. Regulatory Commission 611 Ryan Plaza Drive

-Suite 1000 Arlington, Texas 76011

Reference:

Facility Operating License No. OPR-34 Docket No. 50-267

Dear Mr. Collins:

Enclosed please find a copy of Reportable Occurrence Report No. 50-267/82-036, Final, submitted per the requirements of Technical Specification AC 7.5.2(b)2.

Also, please find enclosed one copy of the Licensee Event Report for

~

Reportable Occurrence Report No. 50-267/82-036.

Very truly yours, An L4 n~La,+y 9mf"ll *Pfe4A Don Warembourg Manager, Nuclear Production DW/cls Enclosure -

4 cc: Director, MIPC ,,,, s -

8210190537 821008

-PDR ADOCK 05000267

.S PDR- ~

f- , . .

]

{'

~.

, l 10- 1 '

REPORT'DATE: October 8.1982 REPORTABLE 0CCURRENCE 82-036 ISSUE 0 OCCURRENCE DATE: September 8, 1982 Page 1 of 2 1

FORT ST. VRAIN NUCLEAR GENERATING STATION PUBLIC SERVICE COMPANY OF COLORADO 16805 WELO COUNTY' ROAD 19 1/2-PLATTEVILLE, - COLORADO - 80651-9298 REPORT NO. 50-267/82-036/03-L-0 Final IDENTIFICATION OF OCCURRENCE:

On ' September.8, 1982, the bearing water makeup pump, P-2105, was taken outlof service. Since the reactor was at power during this occurrence, this is a degraded m' ode of LCO 4.2.2 and reportable per '

Fort St.-Vrain. Technical: Specification AC 7.5.2(b)2.

EVENT.

DESCRIPTION:

On September 8,.1982, with the reactor operating at approximately 70%

thermal power and 215 MWe, the bearing water makeup pump was removed

from service.to rebutid the pump shaft mechanical seal.

The makeup' pump was out of service from 0645 hours0.00747 days <br />0.179 hours <br />0.00107 weeks <br />2.454225e-4 months <br /> untti 1545 hours0.0179 days <br />0.429 hours <br />0.00255 weeks <br />5.878725e-4 months <br /> on' September 8, 1982. Had~it been needed, the emergency bearing water ' makeup pump, P-2108,'was available to' supply makeup to the two .

helium circulator bearing water surge tanks.

CAUSE

? DESCRIPTION:

8 earing _ water make"p pump, P-2105, was removed from service to

' rebuild the mechanical seal which was leaking excessively. This

-leakage .:was due to - normal wear and deterioration .during pump operation.

. CORRECTIVE ACTION  :

J .. , The. worn seal parts were replaced with new,'~ quality-related parts.

'Thel pump -impeller. clearance was reset, and.the pump returned to service within allowable time-limits.

No -further corrective action is anticipated or required.

s

_.3 i

s.

REPORTABLE OCCURRENCE 82-036' ISSUE O Page 2 of 2 Prepared By: ./ h a , s Duane C Frye i Technical Services Technician Reviewed By: 6 M Charles Fuller Technical Services Engineering Supervisor Reviewed By: U' i

1. n Edwin D. Ifill //

Station Manager Approved By: O., M., Loun 34, ?v1146M44 Don Warembourg ' / '

Manager, Nuclear Production h

4

-:- t

,- . ., 9