ML20050B030

LER 82-036/01T-0:on 820308,valve Operator Motor from 1-E11-F002A Removed from Valve W/O Following Appropriate Procedures,Rendering RHR Svc Water Subsystem Inoperable. Caused by Communication Breakdown Among Maint Personnel

ML20050B030
Person / Time
Site:	Brunswick
Issue date:	03/18/1982
From:	Pastva M CAROLINA POWER & LIGHT CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML20050B025	List: ML20050B024 ML20050B030
References
LER-82-036-01T, LER-82-36-1T, NUDOCS 8204020514
Download: ML20050B030 (2)

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LICENSEE EVENT REPORT CONTROL BLOCK: l l l l l l l (PLEASE PRINT OR TYPE ALL REQUIRED IRFORMATIOR) l 6 l l0 l1l8 lN 7 9 lCLICENSEE lB lECODE lP l1 l@l 0 14 15 l 0 l -l 0 l 0LICENSE l 0 lNUMBEH O ! 0 l - i 0 l 025l@l264 l LICENSE 1 l 1 lTYPE 1l 1JO l@b l $8l@

57 LAT CON'T lM 7 8

% "CE 60 lL l@l015 l0 l- l0 l3 l2 l5 @l0131Ol818l2 hl013l1]8]8l2lh 61 DOCKET NUMBER 68 69 EVENT DATE 74 76 REPORT DATE 80 EVENT DESCRIPTION AND PROBABLE CONSEQUENCES h 10121 lDuring plant operation, the valve operator motor from 1-E11-F002A was removed from rho l l0l3l l valve without fol'owing appropriate plant procedures. This valve isolates service I lo l4 l l water outlet flow from A RHR heat exchanger. Removal of the valve motor rendered the I ,

l[Olsl lA RHRSw subsystem and the suppression pool cooling mode of 1A RHR cooling loop l 1

! O s linoperable. This event did not affect the health and safety of the public. I I

l O l 71 1 Technical Specifications 3.6.6.2. 3.7.1.1. 6.9.1.8f l 0

I

, I O IR ) l 80

. 7 8 9 i SYSTEM CAUSE CAUSE COMP. VALVE CODE CODE SUBCODE COMPONENT CODE SU8 CODE SUBCODE 10191 7 8 9 Iw l A!@ W@ W@ lV l A lL lV l0 lP lh dh j h 10 11 12 13 18 19 20 I SEQUENTIAL OCCU R R E NCE REPORT REVISION LE R. RO EVENT YE AR REPORT NO. CODE TYPE NO.

O gEQRT l8l2l [--J l0l3l6l l/l 10 l 1 l l Tl l _-j (,0_j 21 22 23 24 26 27 28 29 30 31 32 T KEN AC ON PL NT M HOURS S h IT FOR9 B. SUPPLIE MAN FACTURER lC 33 l@lXl@34 W Q lZl@

35 36 l0l0l0l0l 31 40 W@ W@

41 42 l43N l@ l44L l 2 l 0 l 047l@

CAUSE DESCRIPTION AND CORRECTIVE ACTIONS 27 i O l During corrective maintenance to the valve manual operator, a breakdown in communica- l 4

i i l tion occurred between the concerned maintenance personnel. As a result. the valve l l , 7 l motor operator was removed without the required LCO's or equipment clearances. Plant i 1 3 l Operations was notified immediately after the error was realized. The motor operator,]

I

[i [4 ] l Model No. SMB-00, was reinstalled within 20 minutes of its removal.

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Involved person-l

! 7 8 9 nel have been counseled. 80 l '*STSUS  % POWE R OTHER STATUS IS O P DISCOVERY DESCRIPTION i 5

[ @ l0l9l3l@l NA l l A l@l Maintenance Observation l A TiVITY CO TENT

! RELE ASED OF RELEASE AMOUNT OF ACTIVITY LOCATION oF RELEASE l 1 6 d @ l Z l@l NA l l NA l 7 8 9 10 11 44 45 80 7 PERSONNEL E XPoSURES j N UMB E R TYPE DESCRIPTION l

7

7 8 9 l0 l0 l0 l@l Zl@l 11 12 13 NA 80 l

y PERSONNE L INJURlES i NUVHER DESCRIP flON l

7 i R 8 9 l0 l0 l0 l@l 11 12 NA 80 l

j LOSS of on DAM AGE TO T ACILITY TYPE DEeZ RIP TION .

i o NA l t LZ_l@l 7 8 9 to 80 l PUB L ICI TY NRC USE ONLY

• ISSUE D DESCRIPilON 2 O [,N_jhl NA l lllllllll1lll*4 7 m o m 68 69 80. ;;; I 8204020514 820318 M. J. Pastva, Jr. (919) 457-9521 c ,

PDR ADOCK 05000325 PHONE: $

.% --- yDR _-, . _ _ _ _ _ _ _--

l LER ATTACHMENT - RO #1-82-36 I

Facility: BSEP Unit No. 1 Event Date: March 8, 1932 During plant operation, plant maintenance personnel removed the valve operator 1 motor from the A RHR heat exchanger service water outlet isolation valve without following appropriate plant procedures. Removal of the motor from the valva, 1-E11-F002A, rendered both the A RHRSW subsystem and the suppression pool cooling mode of A RHR cooling loop inoperable. At the time of this

, event, the redundant systems, B RHRSW subsystem and the B suppression pool cooling mode of RHR, were operable.

This event occurred as a result of a breakdown in communications between the Maintenance personnel performing the work. Each of the two personnel involved assumed the other had completed necessary documentation for the LCO and c?earance requirements prior to beginning the work. The planned work consisted of repairing the valve manual operator which was inoperable and ,

prevented manual closing of the valve. However, at the time, the valve operator motor was operable. While removing the talve operator motor to allow access to the valve manual operator internals, one of the maintenance personnel questioned the other about the applicable clearance required for the ,

removal of the motor. Following the realization that appropriate plant procedures were not in effect to allow the ongoing maintenance, the involved Maintenance personnel immediately notified the plant Operations group of the inadequacy.  ;

The valve operator motor was immediately reinstalled which returned the motor <

operating capability of the valve to normal within 20 minutes of the motor removal.

As a result of this event, the involved personnel were counseled on the importance of strict adherence and awareness of established procedures concerning the necessity for proper implementation of equipment clearance '

procedures. In addition, applicable procedures will be revised such that authorization to perform work is obtained immediately prior to performing any work. This will prevent receiving approvals to work on equipmer' when the plant is in a mode where the equipment is not required, but not actually performing the work until possibly several days later when plant conditions *

(modes) may have changed and new requirements are applicable.

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