05000321/LER-1981-089-03, /03L-0:on 810819,w/D Plant Svc Water Pump Out of Svc for Maint,B Plant Svc Water Pump Incapable of Maintaining Sufficient Pressure Flow.Caused by Debris Obstructing Flow.Preventive Maint Performed

/03L-0:on 810819,w/D Plant Svc Water Pump Out of Svc for Maint,B Plant Svc Water Pump Incapable of Maintaining Sufficient Pressure Flow.Caused by Debris Obstructing Flow.Preventive Maint Performed

ML20010G359
Person / Time
Site:	Hatch
Issue date:	09/03/1981
From:	Nix R GEORGIA POWER CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML20010G334	List: 05000321/LER-1981-089, Forwards LER 81-089/03L-0 05000321/LER-1981-089-03, /03L-0:on 810819,w/D Plant Svc Water Pump Out of Svc for Maint,B Plant Svc Water Pump Incapable of Maintaining Sufficient Pressure Flow.Caused by Debris Obstructing Flow.Preventive Maint Performed
References
LER-81-089-03L, LER-81-89-3L, NUDOCS 8109150618
Download: ML20010G359 (2)

LER-1981-089, /03L-0:on 810819,w/D Plant Svc Water Pump Out of Svc for Maint,B Plant Svc Water Pump Incapable of Maintaining Sufficient Pressure Flow.Caused by Debris Obstructing Flow.Preventive Maint Performed

Event date:
Report date:
3211981089R03 - NRC Website

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i NRC FORM 366 U. S. NUCLEAR REGULATORY COMMISSION

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LICENSEE EVENT REPORT CON's Rol block:

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60 6i DOCKET NUMBER 68 69 EVENT DATE 74 15 HEPOR T DAiE 80 EVENT oESCRIPTioN AND fro 8ABLE CONSEQUENCES h IE I On Auaust 19. 1581. with the "D" Plant Service Water Pumo out of service I

o a l for maintenance, the "B" Plant Service Water Pump was found to be incap-1 ii i o 14 I I able of maintaining sufficient pressure and flow. As both pumps in I

in is t l Division II were ineperable, a LC0 was declared per Unit I Tech Specs l

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Section 3.5.J.2.d.

A similar pump failure was reported by Reportable

_J l O 17 ] I Occurrence Report No. 50-321/1981-79.

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liloll The maintenance activities on the "D" oumo were completed on Auqust 21.

I lili11 1981, and the pump returned to service. When the "B" nums was disassembled.

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debris was found lodged in the pump obstructing flow.

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LER No.:

50-321/1981-089 Licensee: Georgia Power Company Facility:

Edwin I. Hatch Docket No. :

50-321

Narrative

Report for LER 50-321/1981-089 On August 19, 1981,. with the! reactor atf27% power, the IP41-C0018, Plant Service Water Pump, was found to be incapable of' maintaining sufficient' pressure and flow. As the IP41-C0010 pump was already out of service for maintenance, Division II of Plant Service Water was declared inoperable and a 7 day LC0 initiated per Tech Specs 3.5.'J.2.d.

The last incident of this type was reported on Reportable Occurrence Report No. 50-321/1981-079.

The maintenance activities on the'"D" Service Water Pump were completed on August 21, 1981, and the pump returned to service.

When the "B" Service Water Pump was distssembeled,'a piece of griffolene was found enmeshed in the impellers.. It is not possible to distinguish whether the griffolene

- came from within the Intake Structure during previous maintenance activities or if it came through the Traveling Water Screens prior to the screens being repaired last month.

Divers were brought in to search-the Intake Structure after the screens were repaired, but the griffolene'could have been missed due to the murkiness of the water.

Personnel have been instructed to take precautionary measures when working in this area.

Preventative maintenance was performed on the "B" pump and the pump returned to service on August 25, 1981.

There were no effects upon public health and safety due to this event.

A generic review revealed no inherent problems.