05000327/LER-1981-145-03, /03L-0:on 811118,motor Leads on 1FCV-63-6 Were Discovered Lifted During Quarterly Running of SI-166.1. Probably Caused by Mistake on Data Sheet Signoff & Failure to Reterminate Leads

/03L-0:on 811118,motor Leads on 1FCV-63-6 Were Discovered Lifted During Quarterly Running of SI-166.1. Probably Caused by Mistake on Data Sheet Signoff & Failure to Reterminate Leads

ML20039C519
Person / Time
Site:	Sequoyah
Issue date:	12/17/1981
From:	TENNESSEE VALLEY AUTHORITY
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML20039C512	List: 05000327/LER-1981-145, Forwards LER 81-145/03L-0 05000327/LER-1981-145-03, /03L-0:on 811118,motor Leads on 1FCV-63-6 Were Discovered Lifted During Quarterly Running of SI-166.1. Probably Caused by Mistake on Data Sheet Signoff & Failure to Reterminate Leads ML20039C511 ML20039C519
References
LER-81-145-03L, LER-81-145-3L, NUDOCS 8112290427
Download: ML20039C519 (2)

LER-1981-145, /03L-0:on 811118,motor Leads on 1FCV-63-6 Were Discovered Lifted During Quarterly Running of SI-166.1. Probably Caused by Mistake on Data Sheet Signoff & Failure to Reterminate Leads

Event date:
Report date:
3271981145R03 - NRC Website

text

y n) -

LICENSEE EVENT REPORT U/AI.h I'

tg..

4 CONTROt. 0LOCX: l l

l l

l l

lh IPLEASE PRINT On TYPE ALL REQUIREO INFonMATIONI t

6 lo lil IT ln ls In !v li !@l o f o l l n l o l o 1010 l_ lo lo l@l 41 ii il il ilGL l I@

14 IS LICENSE NUMOEH JS 26 LICENSE TYPE JG gp g a g.,,,

I 8 3 LICENSE 8 Co0E CON'T loIej

,7,,",' L@l 0 15_ l0 l0 l0l3l2l7 @l1 l 11 il 8l 811 hl1 l2 l1 l7 j8 l1l@

8 g

t,G 68 DOCK E T NUVDE H 08 63 EVENT DATE 14 75 HEPORT DAf t to I'.

PTION A..O PRODADLE CONSEQUENCES h cvEnr OEscn:

10171 l At 2154 CST on 11/18/81 with Unit 1 in Mode 1 (577 degrees F and 2235 psig) the motor

o ;3; l leads on 1-FCV-63-6 were discovered lifted during the quarterly running of SI-166.1.

~

Io14II This event is reportable under section 6.9.1.13.c.

There was no effect on public IoIsl l health or safety. ' Previous occurrences - none.

[-

g....

10171 I lo is i 1 systEu

CAusE

CAusE CovP.

vatvE CODE C00f '

sutlCODE CoH'oNE NT CODE SUSCODE susCCDE lS l Flh dh l X lh l Zl Zl Z l 7. l Z l Z lh Wh 'l 7.l @

1019]

9 to in 12 13 is 39 20 y

3 sFouE Nil A L oCCunREN",E-REPORT REVistoN LER/Ro EVENT YCAR ng Pont No.

. COOS TYPE No.

@,agia; l8l1l l-l l1 l4 l5 l l/l l0l3l lL l l-l l 0l 2.

22 23 24 2G 27 28 29 30 34 32 ACTfo*f FUTUHE EFFECT SHuf nowed A TT ACHet NT NPno 4 Pniut Coup.

MANUS AC TurtE tt COM*oNtNr T A K E rJ AC TIOrd ofd FL ape r ME T HOU HOutts SUUusi t E D Fol'M bu8-

$UPPLIE R Wgl34 Z l@

l Z l@

]@

l 0l 0l 0l l

l Yl@

[ N lg l L l@

lZ l9 l9 l9 JJ JS 36 37 40 48 42 43 44 CAUSE OESCRIPTION AND CORRECTIVE ACTIONS h [TJ"o'l 1 An ' emergency maintenance request was written to reterminate the motor leads after it g I was determined that the leads should not have been disconnected. The leads were QF -:

sq a2i l reterminated, a functional test was performed, and the valve was returned to g,,.,..

s, i 3 l service at 0038.on 11/19/81.

f

' LLL* J l

- s n

s... itis y e,

uE rnoo o, o: hen srArus Q"%)oiscovE riv oiscovEnv otsCniefioN r

srAim sconEn lTITl l E '@ l 1l 0l Olhl NA

[

[B[@l Surveillance Test A8 very Co'O r Er,T

'8 8

aELEAsto or riEtt A E AuouP3T oF ACT8v1TY toCAflON oFRELEASE M d h lZ l@l NA i

l NA

• EnsoNNEL E=PosuSEs 14 45 e

oEsCnietioNh NuunEn Tvrt 810l 0101@l Z l@l NA 4,.. * *,Easo~N E L.N,U,',Es oEsCn,,,,o~h NU

.E.

l o l o f o l@l i

NA

= o 2

Loss or on oaunct to aacitety TYPE oESCniPrioN d hhl NA j

r a s so runoC Tv 8112290427 811217 a

PDR ADOCK 05000349 NRC USE orat,

issuto otsCaieTioN 45 d

3 PDR "A

g

y,;gg;;;;g; 8

a e lo

y LER SUPPLEMENTAL INFORMATION SQRO-50-327/81145 Technical Specification Involved:

6.9.1.13.c Reported Under Technical Specification:

6.9.1.13.c Date of Occurrenc'e:

11/18/81 Time of Occurrence:

2154 CST Identification and Description of Occurrence:

During the quarterly running of stroke and time test SI-166.1 che motor leads to 1-FCV-63-6 were discovered disconnected in the breaker compartment.

Condition Prior to Occurrence:

Unit 1 in Mode 1 at 100% RTP.

Apparent Cause of Occurrence:

Modification Workplan 8806R1, which installs surge suppression networks, is the last evidence of work performed on this valve. This was on September 30, 1981.

The workplan contains data sheets that show the motor leads, which were lifted to perform this modification, were reterminated in their proper position and were signed off by the Quality Assurance Inspector The most probable cause for the leads being disconnected is that a mistake was made on the data sheet signoff and the leads were never reterminated.

The workplan did not require a post modification test on the valves because of the nature of the work and the workplan was being performed on six valves under the same hold order at the time.

Analysis of-Occurrence:

The valve could only have been manually operated.

Corrective Action

An emergency maintenance request was written to reterminate the motor leads after it was determined that the leads should not have been disconnected.

The leads were reterminated, a functional test was performed, and the valve was returned to service at 0038 on 11/19/81.