ML20006B123

LER 89-022-00:on 890913,discovered That Chilled Water Pump B Returned to Svc W/O Performing Adequate Section XI of ASME Boiler & Pressure Vessel Code Required post-maint Operability Test.Caused by Personnel error.W/900126 Ltr

ML20006B123
Person / Time
Site:	Summer
Issue date:	01/26/1990
From:	Bradham O, Higgins W SOUTH CAROLINA ELECTRIC & GAS CO.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
LER-89-022, LER-89-22, NUDOCS 9001310457
Download: ML20006B123 (4)

Text

-

- 10CFR50.73 soutge g r un. a.ciric

• c.. ccmp.nr go sgr.oy.m p ,,

Nucbar Oper:tions

, 4.ngingvgsc axs SCE&G

, e- w .

January 26, 1990 Document Control Desk U. S. Nuclear Regulatory Commission Washington, DC 20555

SUBJECT:

Virgil C. Summer Nuclear Station Docket No. 50/395 Operating License No. NPF-12 LER 89-022 Gentlemen:

Attached is Licensee Event Report No.89-022 for the Virgil C. Summer Nuclear Station. This report is submitted pursuant to the requirements of 10CFR50.73(a)(2)(1).

Should there be any questions, please call us at your convenience.

Very truly yours, O. S. Bradham WRH/OSB:1bs Attachment c: D. A. Nauman/0. W. Dixon, Jr./T. C. Nichols Jr.

E. C. Roberts R. V. Tanner J. C. Snelson S. D. Ebneter R. L. Prevatte J. J. Hayes, Jr. J. B. Knotts, Jr.

General Managers INPO Records Center C. A. Price ANI Library G. J. Taylor Marsh & McLennan J. R. Proper NPCF R. B. Clary NSRC F. H. Zander RTS (ONO890090)

T. L. Matlosz Files (818.05 & 818.07)

K. E. Nodland

=9001310457 900126

, EEM PDR. ADOCK 05000395 S PDC /-I

i 1

a.c . a ses u s nueta.. .sou6.,o., caan e.io.

• • " moesa o no 3,m-o,o.

"*" "'" l LICENSEE EVENT REPORT (LERI l

i . cs.,, . en oce. , .v . a, .=1 Viroil c. Eumer Nuclear Station

,i,6 i ..,

o il I o 10 I o 1319 5 tlorp1 3 inadonnato >ntt fMntenance Onerability Verification Due to Personnel Error .

. . , m . ..I .... . . .. , o. ,, ,,i ....it,,..........,  !

.. ... . .. .... ae.;;e. m,

,. ... .... . . . + , . . . . . m.,....... l

__ 0 1610101oi i l l

"" ~

0l 8 2l 4 09 8l9 0l2 l 2 0l0 0l 1 2 l6 9l0 o esio io , oi , ,

, i .. , . .v .. . ,. .. .. ov . .,. i. c. . i ,e - ., .. , n ii

.tv. . .v

)

==.i ., me .H . vi , u.i

. = =1.Ilt Hil mi.Ht t ,84.H3 H.1 v3,11gi

...i 1:0i0 m mi. inn i = wi.iui m, HeHai

_ g,ag,7,ege7,e,,

= = in H.i

..,e,.,

] a n nn

. i l .,

a n.inHaiHai m,......

m.,

l

= .pt.H1 H. ,St.HtHout = ,DesH3H.i LeC0.e.t CO.t,.C, .O. ,Ma. 40. (131

u. v ti ..o uv.... .

..t.C004 W. R. Higgins, Supervisor, Regulatory Compliance 81013 314151- 141914 I 2 ca.6 ve o ti= .o. i.e ca .=, .. tv. .e.... in va ..., ne,

{

.vl,4. COM.Chth, "' E' "' 0' C.Vll Yo e'. g C.W88 S Y S, f.f CO O lN, D

%'0 h..

]

A HM S it iA t t V io i Si 5 Y i , i i I e i I i i I i i I l l 1 1 I I I i

$Q L. G N,.4 .G.O., 8 RPG C,. D tid. MON - D.y vg..

,it II* ..e e.v.. O.it,tO Sv0.*IS5 TON DA tt! No l l l

.un .e, ,t . ,.n . . . .. .r .y. ..., n.,

On September 13, 1989 while performing a paperwork closeout review of a Maintenance Work Request (MWR) it was discovered that the *B" Chilled Water Pump (XPP-48B-VU) had been returned to service without performing an adequate Section XI of the ASME Boiler and Pressure Vessel Code required post maintenance operability verification test.

Technical Specification Surveillance Requirement 4.0.5 requires that all inservice testing of ASME Code Class 1,2, and 3 pumps shall be performed in accordance with Section XI. Contrary to this requirement XPP-48B-VU was returned to service on September 4, 1989 after the pump was torn down and reassembled for mechnical seal replacement without verifying its operability through adequate testing.

Upon discovering that an inadequate post maintenance operability verification testing had been performed on the "B" Chilled Water Pump, the pump was declared inoperable and an Off-Normal Occurrence report was generated. The pump was then tested to confirm operability and was returned to service. There is no adverse consequence due to this event because testing did confirm that the pump was operable when it was initially returned to service on September 4, 1989.

The missed post maintenance operability verification testing is attributed to personnel error. There was inadequate review of the scope of the maintenance activity which resulted in not identifying the required testing to return the pump to service.

This event will be discussed with maintenance and operations personnel and a copy of l this LER will be placed in the required reading file for review by those personnel, l

This action is anticipated to be completed by February 28, 1990.

In* ,'*"" "

l i

LICENSEE EVENT CEPORT (LER) TEXT CONTINUATION oenovio owe ao mo-om S ktt;ll 87156 t aC.eksi, haut top pockti Whe.t n gri P.Cil 13 Et n Wuhett. t.1

,sse "ntw," 2:;r:

Virgil C. Summer Nuclear Station ltK1 I,7 pure store e egwoa, use eaWawes/ 4RC Fone 30td si(th o p lololo l3 9 1 l5 8l9 0 l2l2 -

0l0 0f orp p PLANT IDENTIFICATION:

Westinghouse - Pressurized Water Reactor EQUIPMENT IDENTIFICATION:

"B" Chilled Water Pump (XPP-488-VV) EIIS-KM 10ENTiflCATION OF EVENT:

Inadequate post maintenance operability verification due to personnel error.

EVENT DATE:

September 4, 1989 DISCOVERY DATE:

September 13, 1989 REPORT DATE: January 26, 1990 This report was initiated by Off-Normal Occurrence Report (ONO 89-090).

CONDITION PRIOR TO EVENT:

Mode 1 - 100% Reactor Power DESCRIPTION OF EVENT:

On September 13, 1989 while performing a paperwork closeout review of a Maintenance Work Request (MWR) it was discovered that the "B" Chilled Water Pump (XPP-488-VU) had been returned to service without performing an adequate Section XI of the ASME Boiler and Pressure Vessel Code required post maintenance operability verification test. Technical Specification Surveillance Requirement 4.0.5 requires that all inservice testing of ASME Code Class 1,2, and 3 pumps shall be performed in accordance with Section XI. Contrary to this requirement XPP-48B-VU was returned to service on September 4, 1989 after the pump was torn down and reassembled for mechnical seal replacement without verifying its operability through adequate testing.

g.c , o.. u..

. D

• n e- m. u s tucas mutaoav coMMiwo=  !

? g' sinoJto cme mo mo-em LICENSEE EVENT CEPORT (LER) TEXT C2NTINUATION

, (ktitt5 $7195 0 ACl411% WAMt til D0L161 NUM86 h L31 4t h NUM9t h 166 PAfat (E 6.. ww :w,n Virgil C. Summer Nuclear Station a js [o j o 10 l319 I 5 8I9 -

0l212 -

010 013 oF 0 13

,w w ,,,,, u.a . ~ ,m vun w s. m,

{

\

Due to the complexity of the issue regarding Section 4.0.5 of the Technical I Specifications and Section XI of the ASME Boiler and Pressure Vessel Code an indepth and lengthy review this event was performed inorder to ascertain reportability.

CAUSE OF EVff_T:

The missed post maintenance operability verification testing is attributed to personnel error. There was inadequate review of the scope of the maintenance activity which resulted in not identifying the required testing to return the pump  !

to service.

ANALYSIS OF EVENT:

There is no adverse consequence for this event because the operability verification testing performed on September 13, 1989 confirmed that the pump was operable when it was initially returned to service on September 4, 1989.

IMMEDIATE CORRECTIVE ACTION:

1. On September 13, 1989 upon discovering that no post maintenance operability verification testing had been performed on the "B" Chilled Water Pump the pump was declared inoperable and an ONO report was generated.

2. The pump was tested to confirm operability and was then returned to service.

ADDITIONAL CORRECTIVE ACTION:

This event will be discussed with maintenance and operations personnel and a copy of this LER will be placed in the required reading file for review by those personnel. This action is anticipated to be completed by February 28, 1990.

PRIOR OCCURRENCES:

None.

$"t 3,' * * * * * ._

,_