ML18139A942

LER 80-044/03L-0:on 801124,pump 2-SI-P-1A Declared Inoperable Due to Low Resistance.Caused by Connection Box Grounded Out by Rainwater.Box Dried Out,Roof Hatch Repaired & Pump & Motor Tested

ML18139A942
Person / Time
Site:	Surry
Issue date:	12/19/1980
From:	WILSON J L VIRGINIA POWER (VIRGINIA ELECTRIC & POWER CO.)
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML18139A940	List: ML18139A939 ML18139A941 ML18139A942
References
LER-80-044-03L-03, LER-80-44-3L-3, NUDOCS 8012290460
Download: ML18139A942 (2)

Text

{{#Wiki_filter:l'JRC FORNI 366 (7-77) e LICENSEE EVENT REPORT -NUCLEAR REGULATORY COMMISSION CONTROL BLOCK: I I I,\ (PLEASE PRINT OR TYPE ALL REQUIRED INFORMATION) !--1 _..____.__ ....... __.... ___ 6 \..!.) CU2J I v1 Al s I PI s I 2101 o I o I -I o I o I o I o I o I -I o I o 101 4 ! 1 I 1 I 1 I 1 101 I I © 7 8 9 LICENSEE. CODE 14 1S LICENSE NUMBER 2S 26 LICEllfSE TYPE JO S7 CAT SB CON'T [IE] 7 8 ~©I o I s I o I o I o I 2 I s I 1 101 1 11 I 2 I 4 I s I o IG)! 1 12 11 I 9 1 s Io 10 60 61 DOCKET NUMBER 68 69 EVENT DATE 74 7S REPORT DATE* 80 EVENT DESCRIPTION AND PROBABLE CONSEQUENCES@ I On November 24, 1980, with Unit No. 2 at 100 percent power, 2-SI-P-lA was declared inoperable due to low resistance*. Thi" s 1* s contrary t T S 3 3 A 6 d

• t []JI] LI -----------------------------0

__ . __ . __ . _. _. __ an __ i_s_r_e..:..p_o_r_-_ [[EJ IIITJ [ill] able per T. *s. 6.6.2.b(2). The redundant pump was operable. Therefore the health and safety of the public were not affected. [IE] I 7 8 9 [ill] 7 8 SYSTEM CODE Isl Fl@ 9 10 LER/RO CVENT YEAR REPORT 1 8 1 0 1 NUMBER 21 22 CAUSE CAUSE CODE SUBCODE COMPONENT CODE w@ L...z.1@) I Mio Ir I al Rix I@ 11 12 13 18 SEQUENTIAL OCCURRENCE REPORT NO. CODE I I I a I 4 I 4 I l /I I o I 3 I 23 24 26 27 28 29 COMP, SUBCOOE w@ 19 REPORT TYPE LL.J 30 VALVE SUBCODE w@ 20 l.=l 31 ACTlON FUTURE EFFECT SHUTDOWN ATTACHMENT NPRD-4 PRIME COMP. SUPPLIER REVISION NO. L.uJ 32 COMPONENT MANUFACTURER* 80 TAKEN ACTION ON PLANT METHOD HOURS SUBMITTED FOAM :;us. l.JLJ@l.xJ@) Lz.J@ Lz.J la la la la I LYJ@). W 33 34 3S 36 37 40 41 42 ln.J@) I w I I 2 1.o.J@ CAUSE DESCRIPTION AND CORRECTIVE ACTIONS @ 43 44 I Rain water from a leaking roof batch groirnded out the moto:r' connection box. o:::IIJ I motor connection box dried out. The pump and motor were tested and returned -to DJ]] I service. The roof hatch was repaired. o::m [JJTI 7 8 9 FACILITY '3Q\ STATUS % POWER OTHER STATUS \::::;/ METHOD OF (.;'.;\ 47 The BO tITIJ ~ I 1 1 0 I O l@)I ...... __ N.;..../A __ _,r 8 9 10 12 1'3 DISCOVERY DISCOVERY DESCRIPTION \:;I W@L.I ___ R:.;:o:;.u::.t::.:1::.:*n::.:e:......::T:..:e:..::s;..::t:___.

---

'

ACTIVITY CONTENT Q\ RELEASED OF RELEASE AMOUNT OF ACTIVITY [QI] LU@) l2J@I . N/ A 7 8 9 10 11 4S 46 44 so 44 4S LOCATION OF RELEASE N/A. 80 PERSONNEL EXPOSURES NUMBER c;;.. TYPE ~DESCRIPTION [IE] I 01 01 OJ~~L......-------..:.:N.t...:./ A;:_ ____ ..;._ _ _..;.. _________ ___. 7 8 9 11 12 13 PERSONNEL INJURIES t,;:;\ so NUMBER DESCRIPTION6 f2TIJ l O I O IO l@'------,-------....:N~/.;.:.A ________________ __. 7 8 9 11 12 . LOSS OF OR DAMAGE TO FACILITY '4J' TYPE DESCRIPTION \::::;) 80 ~(S}r........ ______ ~-----=N~/=A~----~----------------' 7 a 1:su:i;:~o;;CRIPTION@ 8012290 "I< C) NRC USE ONLY 80"' IIli] ~e,~ __________

---

:;N.:.i..:.:..A

________ ___. l I II II* 1 II I II I 8 9 -{\ 10 68 69 80 ; NAME OF PREPARER ____ ....;J:;..;...* ....;L;;;,,,,;,,.' _W;,,;,.1;;;.* l;;;.s:;.o;:;.n;;;_ _____ _ PHONE: _ _.(_..8...,.0...,,4u)-3i...5:.L7....;- .. 31...1l.i..8'-"4:__ __ _ 0 a. " a*, *. ***-r, ... ATTACHMENT 1 SURRY POWER DOCKET NO: e STATION, UNIT 2 50-281 80-044/03L-0 11-24-80 e REfOR.! NO: EVENT DATE: SUBJECT 2-SI-P-lA INOPERABLE

1. Description of Event: On 24 November 1980, with Unit No. 2 at 100% power, rain water from a heavy rain storm was observed leaking th~ough a roof hatch on 2-SI-P-lA.

Operability of the redundant pump (2-SI-P-lB) was verified by PT 18.1 and 2-SI-P-lA was removed from service. Investigation revealed that the motor.connection was grounded .. This is contra1:y to Technical Specification 3.3.A.6 *and-* is reportable* as per Tech. Spec. 6.6.2.b(2).

2. Probable Consequences and Status of Redundant Equipment:

The low head Safety Injection

Bumps provide*.

cooling and makeup water to.2'the reactor during the LOCA. The redundant pump*(2-SI-P-1B) was operable and would have functioned as designed. 2-SI-P-lA was returned to service in 12 hours, well within the 24 hours allowed. Therefore, the health and safety of the public were not affected.

3. Cause: Rain water from a leaking roof hatch above the pump leaked into the motor nection box and created a ground. 4. Immediate Corrective Action: The redundant pump (2-SI-P-lB) was verified operable as required by Technical Specification 3.3.B.3. Water was removed from the connection box and heat was applied. 5. Subsequent Corrective Action: The motor connection box was dried using temporary electrical heaters. sequently the pump and motor were verified operable and returned to service. 6. Action Taken to Prevent Recurrance

-The leaking roof hatch was repaired and.inspected during a subsequent rain storm. 7. Generic Implications: None.}}