ML18139A077

LER 80-020/01T-0:on 800310,during Review of Heat Tracing Circuit Monthly Check,Discovered Circuits 24A,B & C for Unit Boric Acid Filter Sys Tagged Out of Svc Since 800211. Caused by Personnel Error.No Immediate Actions Necessary

ML18139A077
Person / Time
Site:	Surry
Issue date:	03/24/1980
From:	Stewart W VIRGINIA POWER (VIRGINIA ELECTRIC & POWER CO.)
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML18139A076	List: ML18139A075 ML18139A077
References
LER-80-020-01T, LER-80-20-1T, NUDOCS 8003270315
Download: ML18139A077 (2)

Text

(7-77)

LICENSEE EVENT REPORT

• -C~N-T-ROL BLOCK: I1'-_ ,.

• _.____.__..,____.__...,_~ 6 \V

,rJ\ (PLEASE PRINT OR TYPE A--EQUIRED INFORMATION)

[ill I VI Al s! Pl s! 1101 01 ol -I ol ol ol o! ol -Io! olI 411' .1! 1' tl©I r I© 7 8 9 LICENSEE CODE 14 15 LICENSE NUMBER 25 26 LICENSE TYPE 30 57 CAT 58 CON'T ITE]

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~;~~~~ ~© I o I s Io Io Io 12 1s Io 101 o I 3 l II oI s ! ~ I oI 3 I 2 t -4 t s I oIG) 60 61 DOCKET NUMBER 68 69 EVENT DATE 74 75 REPORT DATE 80 EVENT DESCRIPTION AN-D PROBABLE CONSEQUENCES@

((DJ I During the review of PT 27B, Heat Tracing Circuit Monthly Check, it was discovered tbalt heat tracing circuits 24A, B, & C (Panels 8 and 9) for the Unit Boric Acid Filter System CQ:II) I had been tagged out of service since 2/11/80. This is contrary to T.S. 3.2.B.5-and

[]:JI] :rep.ortable per T. S. 6. 6. 2.A. 2. Normal operation verified that the required flow pathsl

~ were operable therefore, the health and safety of the public were not affected.

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7 8 9 80 SYSTEM CAUSE CAUSE COMP. VALVE IIITJ 7 8 9 CODE I S!H I@

10 CODE L!I@

11 SUBCODE w@ , HIE I A, T, E, R 12 13 COMPONENT CODE

,e 18 SUBCODE 1.£1 19 SUBCODE LU@

20 SEQUENTIAL OCCURRENCE REPORT REVISION I'::;.. REPORT NO. CODE TYPE NO.

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LEA/RO [:VENT YEAR

.REPORT NUMBER j 8 O j  ! I I I O 12 I O I ~ I 01 11 L!J l=1 LQJ .

21 22 23 24 26 27 28 29 30 31 32 ACTION FUTURE EFFECT SHUTDOWN {22) ATTACHMENT NPRD-4 PRIME COMP. COMPONENT TAKEN ACTION ON PLANT METHOD HOURS 1"15* SUBMITTED FORM :;us. SUPPLIER MANUFACTURER F ~@l:J@

33 34

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35 LJ I 0 1°1 °1 I 36 37 40

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43 I44 I I I I@_: 47 CAUSE DESCRIPTION AND CORRECTIVE ACTIONS @

[II)) I Performing the tag-out necessary to effect repairs on circuit 24:S (Paneis B & C), Unit(

lJJJJ 1 Boric Acid Filter Drain Line, all three circuits were inadvertently tagged out of f ITJII Ls_e_rv_i_c_e_.__s_i...,*n_c_~__e_:_,_a_t_t_h_e_t_i_*m_e_o_f_d_i_*_sc_o_v_e_r_y::....:...,_t_h_e_u_n_i_*t_w_a_s_a_t_c.;.. . ..;..o_ld_.;;...sh.......;.u..:t..:d..:o....;wn~,_n....;o-...::i:;.;;.m~m;;;.;e....;d;...i_a_t.;;..e;;..il

[J]I] I corrective actiD~- were necessary" Prior to unit startup, all circuits will be repairel:l *

[Ili] l and verified operable. The boric acid leak will be repaired.

7 8 9 80 METHOD OF ~

FACILITY STATUS  % POWER OTHER STATUS @ C>ISCOVERY DISCOVERY DESCRIPTION ~

fIITI LEJ@ l O I O I O l@I. . .NA _ _ _ _ _~ LJ@L.!__E_l_e_c_t_r_i_c_a_l--=p_e_r_s_o_nn_e_l_ _ _ _ _ _ _ ___.

7 8 9 10 12 1'.3 44 45 46 80 ACTIVITY CONTENT ~

RELEASED OF RELEASE AMOUNT OF ACTIVITY ~ LOCATIO.N OF RELEASE @

ITJI]~@)~@I NA *I NA 7 8 9 10 11 44 45 80 PERSONNEL EXPOSURES ~

NUMBER ~ TYPE DESCRIPTION 39

[TII] I 0 1 °1 ~'8L:J@L.-__._______________________,

7 8 9 11 12 13 80 PERSONNEL INJURIES ~

ETIJ I 01 01 Ol@~___A_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _~

NUMBER DESCRIPTION 41 7 8 9 11 12 80 LOSS OF OR DAMAGE TO FACI LITV '43' TYPE DESCRIPTION ~

~ ~{§)L-__NA _____________________________________________________~

7 B 9 10 80.

PUBLICITY '4s' --=i, I s; NRC USE ONLY rIIfil ~@L-1_N_A_ _ _ _ _ _ _ _ _ _ _ _8 _

ISSUED DESCRIPTION~ (} 0_3 _ 2_ 7 (11_-_ '

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1* 8 9 10 68 69. 80 ;;

0 NAME OF PREPARER w I Stewart PHONE:-~(~g()1:1,-!.'t-1)1-::J~§~J~J"*l~S.q.'1--- Q.

--.:-;,-,-~-*-

ATTACHMENT, PAGE 1 OF 1 e

SURRY POWER STATION, UNIT 1 REPORT NO: 80-020/0lT-O EVENT DATE: 3/10/80 TITLE OF EVENT: Heat Tracing Circuits Out of Service

1.

• DESCRIPTION OF EVENT:

During the review of PT-270, Heat Tracing Circuit Monthly Check, it was discovered that Heat.Tracing Circuits 2A., B & C (Panels 8 and 9) for. th~

Unit 1 Boric Acid Filter System has been tagged out of service since 2/11/80. This. is contrary to T.S. 3.2.a.5 and report_able per T.S. _6.6.2.a.2.

2. PROBABLE CONSEQUENCES & STATUS OF REDUNDANT SYSTEMS:

Normal operation verified that the required flow paths were operable, therefore, the health and safety of the public were .not affected.

3. CAUSE:

In performing the tag-out necessary to effect repairs on circuit 24B (Panels B & C) Unit 1 Boric Acid Filter Drain Line,. all three circuits were inadvertently tagged out of service.

4. IMMEDIATE CORRECTIVE ACTION:

The two circuits of heat tracing that are required by Tech. Specs. were immediately energized and flow verified.

5. SUBSEQUENT CORRECTIVE ACTION:

Prior to unit startup, all circuits will be repaired and verified operable~ The boric acid leak will be repaired.

6.

• ACTION TAKEN TO PREVENT RECURRENCE:

The program of review for tagging out of electrical equipment.has been stressed to the people involved and no further action is deemed necessary.

7. GENERIC IMPLICATIONS:

A task force has been established to study the total spectrum of the heat tracing system in an attempt to discern present problems and recommended solutions which will eliminate the failures experienced. While this study is in progress, a new type of Heat Tracing Tape is being used which has thus far proven resistant to failure.