ML20024F377

From kanterella
Jump to navigation Jump to search
LER 83-044/03L-0:on 830808,diesel Generator 12 Tripped on Low Jacket Cooling Water Pressure While Verifying Operability.Cause Not Stated.Coolant Jacket Vented & Large Amount of Air Found.No Evidence of leakage.W/830825 Ltr
ML20024F377
Person / Time
Site: Calvert Cliffs Constellation icon.png
Issue date: 08/25/1983
From: Porter R, Quimby C, Russell L
BALTIMORE GAS & ELECTRIC CO.
To: Murley T
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
References
LER-83-044-03L, LER-83-44-3L, NUDOCS 8309090325
Download: ML20024F377 (2)


Text

_ - -_ _

HH J FC++ M 8 58 U.S. NUCL2A2 C3RULATCRY CCMMl3CISM APPACVWD GY CM3

"'*'8 LICENSEE EVENT REPORT E'8dS's-no-as

(' LEASE PRINT OR TYPE ALL REQUIRED INFORMATION)

CONTROL BLOCK: l l l l l l l@

l 0l1.l.l M LIC l Dl Cl ClN l 1 l@l0 l0 l- l LIC EN.E E C ODE to 1.

0 EN.El 0 NUl MS010l E R Ol- l 0 l 0l@l4LICEM35

3. 8.

l 1 lTYPE1 l 1l Il@[ l l@

3. ,, CAT ..

CON'T l 011 l y .

"!'!M lL l@l 0 l 5 l DOCRET

.. .I 010l0 l 3 l 1 l 7 l@l0 l 8 EVENT NUMsER .. ..

l 0 lD 8l ATE 8l 3]@l 0 l 8l2

,4 ..

l 5 l 8 l 3 l@

R EPORT D ATE ..

EVENT DESCRIPTION AND PROBABLE CONSEQUENCES h 0 2 l At 0604, during normal operation, #12 Diesel Generator tripped on low l l 0 la l l _iacket cooling water pressure while ensuring its operability in prepara- l l 014 I l tion to remove #11 Diesel Generator for PMs. The redundant AC nower l 1015 l l sources were verified per T.S. 3.8.11.12. Diesel Generator was repaired, I l 0 l6 l l tested and returned to service at 1120. Unit 2 was at 100 per cent power. l l o l 7 l l Similar events: 50-317/76-36. l FOT8-;I I

=- wa .=:E CO. PONE NT CO.E .=E .=:E l0l9 l l E l E l b d.. b l..A J @ lElNl Gl Il N!Fj @ l7, l@ lz l@

-uEN,,E R  :::T" ' ' ' . ' cc""";"c' "K:"' " " ,':.'* "

O '""i",

l8l3I L-] I 014l4 l l/l l0 l 3 l lL l l-l (.0j 33

. II 32 23 34 3. 3, 8 3. 3 35

=~ == ::=, = = ~ N..R. .:=r:.. ~=P='- .==:E R@

[_Zj @ lo l OI Ol@ 0] :=lNl = @ l Yl@ l Al@ lF l0 lIl 0l 3 (d @(JJ @ d. @

33 34 3 SS 3, 4. 41 42 43 44 4, CAUSE DESCRIPTION AND CORRECTIVE ACTIONS h l110ll Mechanics manually vented the coolant iacket and found a 1arce amount I l 111 l l of air. There was no evidence of coolant leakage. An FCR will provide l i 2 l constant venting to the exonnsion tnnk. l l11311 l lt14II I

. TAT .  % POW E R OTHE R .T ATU. l.COVERY DI. COVE RY DE.CRIPTION N/A l B l@l. Failed while operating I l l t I s l l E l @ l 1 l 0 l Ol@l l

4. -

l , .. .. ,, i. 4.

/EYEI'.'Eo Or REtEa'sE am ouNT Or aCTiviTv oOCaT.ON or R EtEa.E @

I i l e.l .(_gj @ U.. @l ..

N/A @l 4.

l 4.

N/A l

NUMBER FTPE D E.C RIPTIO N 1117 l l 0101 Ol@lz.J@l N/A ..

l NUMBER E .C R IPTION l ii sil 0101 ol@l N/A "

l

'q'og OR .j ,g ';g.ciuTvg N/A l l 111911z1@l i

' NRC USE ONLY s..uBo I.CRiPTONh I 2l 011 Nl@l N/A l llllllllllll ..l t , . . ..

NAME oF PREPARER R. J. Porter /C. H. Quimby, Jr. PHONE: 301-269-4747/4816 I 8309090325 830825 l PDR ADDCK 05000317 S PDR

B ALTIMORE G AS AND ELECTRIC COMPANY P. O . B O X 1475 B A LTIM O R E, M A R Y L A N D 212o3 HUCLEAR power DEPARTMENT CALvERT CLIFFS NUCLEAR POWER PLANT LUSBY, M ARYL AND 20657 August 25, 1983 Dr. Thomas E. Murley Docket No. 50-317 Regional Administrator License No. DPR 53 U. S. Nuclear Regulatory Commission Region 1 631 Park Avenue King of Prussia, PA 19406

Dear Dr. Murley:

Attached is LER 83-44/3L, as required per Technical specification 6.9.

Should you have any questions regarding this report, we would be pleased to discuss them with you.

Ve truly yours, A,- L. B. Russell Plant Superintendent

!' cc: Director, Office of Management Information and Program Control Messrs: A. E. Lundvall, Jr.

J. A. Tiernan l

l I

Q k_