ML19308D086

RO-77-65:on 770616,emergency Feedwater Pump Inoperable. Caused by Pump Outboard Bearing Failure.No Adverse Safety Effects.Bearing Renewed & Operability Restored

ML19308D086
Person / Time
Site:	Crystal River
Issue date:	07/08/1977
From:	Stewart W FLORIDA POWER CORP.
To:
Shared Package
ML19308D083	List: ML19308D082 ML19308D086
References
NUDOCS 8002270584
Download: ML19308D086 (2)

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@l 7 UU initiated and the steam driven EWP returned to service' in 7 hours8.101852e-5 days <br />0.00194 hours <br />1.157407e-5 weeks <br />2.6635e-6 months <br /> and 15 minutes. '

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SUPPLEMENTARY INFORMATION

1. Report No.: 50-302/77-65

2. Facility: Crystal River Unic #3

3. Report Date: 3 July 1977

4. Occurrence Date: 16 June 1977

5. Identification of Occurrence: .

Failure to have two emergency feedwater pumps available and operable from two independent power sources contrary to Technical Specification 3.7.1.2.b.

6. Conditions Prior to Occurrence:

Mode 1 power operation.

7. Description of Occurrence:

During manual operation of the steam driven emergency feedwater pump the outboard pump bearing failed. The pump was removed from service and the 3 twelve hour Technical Specification Action Statement was entered at 1655.

Repairs were initiated and the steam driven emergency feedwater pump was returned to manual operation at 0010~ 17 June 1977.

8. Designation of Apparent Cause:

Failure of the pump outboard bearing.

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9. Analysis of Occurrence:

There were no adverse safety consequences resulting from this occurrence as the motor dri9en emergency feedwater pump was available and operable.

10. Corrective Action:

None required as bearing failure ' attributed to normal wear.

11. Failure Data:

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The inoperability of the steam driven emergency feedwater pump is repetitive.

First occurrence of bearing failure.

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