ML20010A925

LER 81-108/03L-0:on 810705,vacuum Pump Seized Causing Loss of Flow Alarm on EMF-33 Monitor.Caused by Condensation Being Aspirated Into Vacuum Pump Due to Improper Drainage.Damaged Pump Repaired

ML20010A925
Person / Time
Site:	McGuire
Issue date:	08/03/1981
From:	Nardoci P DUKE POWER CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML20010A924	List: ML20010A923 ML20010A925
References
LER-81-108-03L, LER-81-108-3L, NUDOCS 8108130118
Download: ML20010A925 (1)

Text

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NRC FORM 364 U.S. NUCLEAR RECULATORY COMMessioN tr m LICENSEE EVENT REPORT EXHIBIT A CONTROL 8 LOCK; l i

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EVENT ofsCRiPnote AND PROS A8LE CONSEQUENCES h o 2 [ While in Mode 4, investigation of a loss of ficw alarm on the condenser steam l E l nir ojector radiation monitor (EMF-33) determined that the vacuum pump had I o 4 Iseized. The monitor was declared inoperable per T.S. 3.3.3.9 which is report-l 8 Iable ner T.S. 6.9.1.13(b). and is similar to previous R.C'.'s #P1-13, 18, 21, g g i 31, 35, and 79. Sample analysis of the reactor coolant an/. condenser steam ai[

lTITII ejector systems confirmed that no radiation levels above background were presept.

I o l a I I Thus . the health and safety of the public were not affected. I Sc"o's" Tool su'*clEe couno~ewrcoor s sUcEcs o e I Bl A l@ W@ W@ l Pl UlM l p i XIX @ u'E"o$sW@ [Z_l @

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4, CAUSE CESCRIPTION AND CCARECnVE ACTIONS 27 s o lThe failure of the eauipment was a direct result of condensation being aspiratpd g l into the vacuum pump due to improper drainage. Periodic sampling and analysis, m I was performed as required by the appropriate action statement, and the damaged; m I pump was repaired. Modifications are being made to correct this recurring ,

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