05000321/LER-1981-047-03, /03L-0:on 810604,reactor Core Isolation Cooling Turbine Bearing Oil Low Pressure Annunciator Alarmed Due to Low Oil Level.Caused by Small Oil Leaks from Connection on Sight Glass & Governor Hearing Fitting

/03L-0:on 810604,reactor Core Isolation Cooling Turbine Bearing Oil Low Pressure Annunciator Alarmed Due to Low Oil Level.Caused by Small Oil Leaks from Connection on Sight Glass & Governor Hearing Fitting

ML20005A103
Person / Time
Site:	Hatch
Issue date:	06/23/1981
From:	Nix R GEORGIA POWER CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML20005A101	List: 05000321/LER-1981-047, Forwards LER 81-047/03L-0 05000321/LER-1981-047-03, /03L-0:on 810604,reactor Core Isolation Cooling Turbine Bearing Oil Low Pressure Annunciator Alarmed Due to Low Oil Level.Caused by Small Oil Leaks from Connection on Sight Glass & Governor Hearing Fitting
References
LER-81-047-03L-01, LER-81-47-3L-1, NUDOCS 8106290390
Download: ML20005A103 (2)

LER-1981-047, /03L-0:on 810604,reactor Core Isolation Cooling Turbine Bearing Oil Low Pressure Annunciator Alarmed Due to Low Oil Level.Caused by Small Oil Leaks from Connection on Sight Glass & Governor Hearing Fitting

Event date:
Report date:
3211981047R03 - NRC Website

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'S REPORT CATE 60 EVENT DESCHIPTION AND PROBABLE CONSEQUENCES h ITTTl1 With flatch 1 in startup and holding at 180 lbs. reactor pressure, O's ther-I mal power, the RCIC pump operability test was being performed, the RCIC l

DTTil I DiTT1 I turbine bearing oil low pressure annunciator alarmed due to low oil level.

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101s l l as per Tech Spec 3.5.E.2 and no significant gl non-repetitive event and there were no effects upon public health and l

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gI connections were tightened and oil level restored.

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test was performed and was satisfactory.

RCIC was declared operable.

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j, LER No.: 50-321/1981-047 Licensee: Georgia Power Company

- Facility: Edwin I. Hatch Docket No. : 50-321

Narrative

Report for LER-50-321/1981-047 On_ June 4,1981, with the Unit I Reactor in the startup mode at 180 psig and 0% thermal power, the RCIC Pump Operability Test, HUP-1-3405, was being ' performed.

Upon starting the turbine, the Turbine Bearing Gil. Low Pressure. annunciator alarmed and the turbine was shutdown.

RCIC was de-

- clared inoperable, since compliance with Tech Specs Section 4.5.E.2 and 3.5.E.1-for RCIC operability testing was not met.

As per Tech Spec Section 3.5.E.2, HPCI was ooerable and no significant event occurred.

The reason for;the alarm was due to a low oil level in the RCIC oil supply resulting from a small leak in the oil system.

The leaks were from a loose connection on the Jacoby Tarbox Sight Flow Glass and a loose connection on the fitting on the governor oil gauge.

The connection was tightened and the oil level restored. The RCIC Pump Operability Test, HMP-1-3405, was performed satisfactorily and RCIC was declared operable.

This is a non-repetitive event and there were no effects upon public health and safety due to this event.

No inherent problems were found during the generic review.

' The' unit is now in full compliance.

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