ML20050A335

LER 82-006/03L-0:on 820219,during Mode 5 Operation,While Conducting Surveillance Testing,Leakage Past CTMT Purge Supply & Exhaust Valves Was Found in Excess of Tech Specs. Caused by Normal Wear of Ethylene Proplene Seats

ML20050A335
Person / Time
Site:	Calvert Cliffs
Issue date:	03/19/1982
From:	Lheureux R, Wenderlich R BALTIMORE GAS & ELECTRIC CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML20050A333	List: ML20050A332 ML20050A335
References
LER-82-006-03L-01, NUDOCS 8204010148
Download: ML20050A335 (1)

Text

NRC FORM 366 U. S. NUCLEAR REGULATORY COMMISSION (7 77U

. LICENSEE EVENT REPORT CONTROL BLOCK: l l l l l l l (PLEASE PRINT OR TYPE ALL REQUIRED INFORMATION) 1 6 l o 118 9l l Ml LICENSEE 7

D l C CODE l C l N 14l 2 l@l 15 0 l 0 l - l 0LICENSE l 0 l NUMBER 0 l 0 l 0 l - l 0 l 025 l@l26 4 l LICENSE 1 l 1 l TYPE 1l1 JO l@l57 l CAT 58 l@

CON'T lolil 5$n"Cc l L l@l 015 DOCKl 0 lET0NUMBER l 0 l 3 l 1 l688 l@l 01211 l 9 l 8 l 274 l@l75 013REPORT I 119 I 8 l 280l@

i 8 60 61 69 EVENT OATE DATE EVENT DESCRIPTION AND PROBABLE CONSEQUENCES h lo l2l l During Mode 5 operation, while conducting surveillance testing, leakage ]

[o l3 l l past the CTMT purge supply and exhaust valves was found to be excessive l j o i4 ; [ (T.S. 3.6.1.1. and 3.6.1.2). Although these technical specifications l

[ o ,3 g l do not apply in Mode 5, this condition could have existed during Mode 1 l lo le l l operation. The supply and exhaust valves were repaired and passed the l j l0l7ll leakage tests on 2-23-82 and 2-22-82 respectively. Similar events: none l

[ 0181 l reported. l 7 8 9 80 SYST E M CAUSE CAUSE COMP. VALVE CODE CODE SUBCODE COMPONENT CODE SUBCODE SUSCODE M

7 8 l Sl Dl@ W@ l B l@ l Vl Al Ll Vl El Xl@ ]@ W @

9 10 11 12 13 18 19 20 SEQUENTIAL OCCURRENCE REPCRT REVISION LER RO EVENT YEAR REPORT NO. CODE TYPE NO.

O"Nu'sg "P

18l2l 21 22 l-l 2J l 01 01 6]

24 26 y27 10 13 l 28 29 lLl 30 l-l 31 l 0l 32 K N AC ON O PL NT ET HOURS SB IT D FOR B. SUPPLI R MANUFACTUPER W33

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35 lZl@

36 l0l0l0l0l 3/ 40

]Q 41 l42 Yl@ l43 Al@ lPl3l4l0l@

44 47 CAUSE DESCRIPTION AND CORRECTIVE ACTIONS h li jol l The supply and exhaust valves failed the LLRT as a result of norILal wear l li li l l of the ethylene propylene seats. The supply valves passed their LLRT l l , ,7 g l once theit seats were replaced. The exhaust valves passed their LLRT l g,l3ll once their seats were adjusted. A PM is being initiated to inspect and l i 4 l replace (if necessary) these seats every refueling outage. l 7 8 9 80 STA S  % POWER OTHER STATUS dis O RY DISCOVERY DESCRIPTION 1 5 d @ l0l0l0l@l NA l W @l Surveillance Testing l ACTIVITY CO TENT RELEASED OF RELEASE AMOUNT OF ACTIVITY LOCATION OF RELEASE NA 7

1 6 8 9

@ 10

@l 11 NA 44 l l 45 80 l

PERSONNEL EXPOSURES NUMBER TYPE DESCRIPTION 1 7 l0l0l0l@ ] @l"

• PtRSONNEl'in;UJiES '

NA l

NUMBE R DESCRiPTiO~@

W l0]0]0l@l 7 8 9 11 12 NA 80 l

LOSS OF OR DAMAGE TO FACILITY TYPE DESCRIPTION d dhl 7 8 9 to NA 80 l

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ISSUEl @ DESCRIPTION NA [ lllllllllllllj 825401O148 Of0319 R.L.Wenderlich/R.W. L'Heureux 301-2Y9-4776/4869  !

PDR ADOCK 05000318 ps ons: c.

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