05000311/LER-1982-017, Supplemental LER 82-017/03X-1:on 820228,svc Water Flow Indicated Zero Upon Starting Containment Fan Coil Unit 22 (Cfcu).On 820301,svc Water Flow to Cfcu 23 Less than Required 2,500 Gpm.Caused by Stuck Valve

Supplemental LER 82-017/03X-1:on 820228,svc Water Flow Indicated Zero Upon Starting Containment Fan Coil Unit 22 (Cfcu).On 820301,svc Water Flow to Cfcu 23 Less than Required 2,500 Gpm.Caused by Stuck Valve

ML20082L222
Person / Time
Site:	Salem
Issue date:	11/17/1983
From:	Frahm R, Zupko J Public Service Enterprise Group
To:	Murley T NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
References
LER-82-017-03X, LER-82-17-3X, NUDOCS 8312050442
Download: ML20082L222 (7)

LER-2082-017, Supplemental LER 82-017/03X-1:on 820228,svc Water Flow Indicated Zero Upon Starting Containment Fan Coil Unit 22 (Cfcu).On 820301,svc Water Flow to Cfcu 23 Less than Required 2,500 Gpm.Caused by Stuck Valve

Event date:
Report date:
3112082017R00 - NRC Website

text

_ _ _ - _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _

(7 77)

LICENSEE EVENT REPORT coNTRot stock: l -l l l tettAst PRINT GR TYPE ALL RECUIRED INFCCMATl!N)

, l o@

JE IN B 9lJ l LICENSEE S lG CODE lS l 2 l@it ol ol -l 0lLICENSE 14 -

0l 0l 0l Ol -l 0] Ol@364lll1l1l1l@l NUMSER 26 LICENSE TvPE JO l

67 CAT se lg CON'T O 1 l

" l 01 5l O! 0l 0l 3l 1IW 1hl 0l 2l 2l 8l 8l 2Qjl l1 l1 l7 l8 l3 lg sou 80 Si DOCKET NUwgER S0 EVENT DATE 74 75 REPORT DATE So EVENT DESCRIPTION AND PROBABLE CONSEQUENCES h g lOn February 28, 1982, the Control Room Operator discovered zero service water flow g gindication upon starting No. 22 Containment Fan Coil Unit (CFCU). Action Statement l

0 4 1 3.6.2.3.a was en'tered at 0612 hours0.00708 days <br />0.17 hours <br />0.00101 weeks <br />2.32866e-4 months <br />. On March 1, 1982 during performance of g g gSurveillance 4.0.5V-SW, the operator noticed service water flow to No. 23 CFCU was g O 6 lless than the 2500 GPM required in low speed. With two CFCU groups inoperable, g a 7 l Action Statement 3.6.2.3.b was entered at 0540 hours0.00625 days <br />0.15 hours <br />8.928571e-4 weeks <br />2.0547e-4 months <br />. g NI I E CODE S sc E COUPONENT CODE SUB D'E 5 Q

.7 a e lS l B j@ {h ]h l Vl Al Ll Vl El Xlh ]@ { Eh io si 12 13 is is 20

,_ SE QUENTI AL OCCURRENCE REPORT REVISION LER RO EVENT YE AR R EPORT NO. CODE TYPE N o.

h ,REgR l8l 2l b l 0l 1l 7l d l0l3l X b W 2i 22 23 24 26 27 30 29 31 32 KN A T ON PL NT ME HOUR $ $ei POR S. SUPPLi MANUFACTURER bhdh 33 34 bh 3S yh M 3l7 0l0l0l0l40 WQ WQ WQ 41 lM F l 1l 3 l 047l@

42 43 CAUSE DESCRIPTION AND CORRECTIVE ACTIONS h i O l The cause of zero service water flow to No. 22 CFCU was Valve 22SW223 was stuck closed.l Q l The cause of low service water flow to No. 23 CFCU was the transmitter was pluqqed I i [with silt. No. 23 CFCU transmitter was blown down, valve 22SW223 was exercised; the l 1 3 lCFCUs were returned to service in the time required by the Technical Specifications. l i 4 [ Daily operation of the CFCUs has corrected these problems. l 7 ee ao ST NS  % POWE R OTHER STATUS Dis O R D15CovtRY DESCRIPTION Q W h lll0l0l@l NA l (B Jgl Surveillance Test

, l A TIVITY ChTENT RELE ASED OF RELEASE AMOUNT OF ACTIVITY LOCATION OF RELE ASE 1 6 h '

l NA l l NA l PERSONNEL exposures NUweE R TYPE DESCRIPTION 8 10101 al@Lal@l" NA I

PE RsONNE L iN; " iEs NUwsE R ESCRIPTION E, E.)I d ol al@l NA .- L. I

. 6" A'-['

5 ' "^ '

'#P , .

8, L.aJ@% .

l so NA "CR ?T O? , .o I

essuto PUSLtCITY 3312050442 831117 NRC USE ONLY PDR ADOCK 05000311  %

b M@otsCRirt ee l ON NA _S PDR I IIIIIIIIIIII!I 7 to se so. so ;;

NAuE or enPPAnEm puoNE:(6W MWOO m. N j

~

0 PSEG Public Service Electric and Gas Company P.O. Box E Hancocks Br idge, New Jersey 08038 Salem Generating Station November 17, 1983 Dr. Thomas E. Murley Regional Administrator USNRC Region 1 631 Park Avenue King of Prussia, Pennsylvania 19406

Dear Dr. Murley:

LICENSE NO. DPR-75 DOCKET NO. 50-311 REPORTABLE OCCURRENCE 8 2-17/0 3 X-1 SUPPLEMENTAL REPORT Pursuant to the requirements of Salem Generating Station Unit No. 2 Technical Specifications, Section 6.9.1.9.b, we are submitting supplemental Licensee Event Report for Reportable Occurrence 8 2- 17/ 0 3X-1.

Sincerely yours,

-ef,h -

J. M. Zupko, Jr.

General Manager -

Salem Operations RF:kil CC: Distribution The Energy People

Report Number: 82-17/03X-1 Report Date: 11-17-83 Occurrence Date': 02-28-82 and 03-01-82 Facility: Salem Generating Station, Unit 2 Public Service Electric & Gas Company Hancocks Bridge, New Jersey 08038 IDENTIFICATION OF OCCURRENCE:

Containment Fan Coil Unit - Inoperable - Low Service Water Flow.

This report was initiated by Incident Reports82-045 and 82-046.

CONDITIONS PRIOR TO OCCURRENCE:

Mode 1 - Rx Power 100% - Unit Load 1150 MWe DESCRIPTION OF OCCURRENCE:

On February 28, 1982, the Control Room Operator discovered zero service water flow indication upon starting No. 22 Containment Fan Coil Unit (CFCU). No. 22 CFCU was declared inoperable, and Action Statement 3.6.2.3.a was entered at 0612 hours0.00708 days <br />0.17 hours <br />0.00101 weeks <br />2.32866e-4 months <br />.

On March 1, 1982 during the performance of Surveillance 4.0.5V-SW, the Control Room Operator noticed the service water flow to No. 23 CFCU was less than the 2500 GPM required in low speed, and the unit was declared inoperable. Because two groups of CFCU were inoperable, Action Statement 3.6.2.3.b was entered at 0540 hours0.00625 days <br />0.15 hours <br />8.928571e-4 weeks <br />2.0547e-4 months <br />.

Redundant CFCUs and both Containment Spray Systems were operable throughout the occurrence.

DESIGNATION OF APPARENT CAUSE OF OCCURRENCE:

The cause of zero service water flow to No. 22 CFCU was Flow Control Valve 22SW223 had stuck in the closed position.

Flow Control Valve 12SW223 had stuck in the closed position, resulting in low service water flow to the CFCU. The binding of type SW223 valves is apparently associated with the accumu-lation of scale and corrosion on the valve stems, resulting from the CFCUs being idle between monthly surveillance runs.

The cause of low service water flow indication to No. 23 CFCU was the transmitter had become plugged with silt.

l t - .

LER 8 2-17/03X-1 .

ANALYSIS OF OCCURRENCE:

The CFCUs operate in conjunction with the containment spray systems to remove heat and radioactive contamination from the containment atmosphere in the event of a design basis accident.

Operability of'the equipment is necessary to insure offsite radiation dose is maintained within the limits of 10CFR100.

As noted, containment cooling capability was provided by the redundant equipment; no undue risk to the health or safety of the.public was therefore involved in this occurrence. The occurrence constituted operation in a degraded mode permitted by a limiting condition for operation and is reportable in accordance with-Technical Specification 6.9.1.9b.

Technical Specification 3.6.2.3.a requires:

With one group of Containment Cooling Fans inoperable and both Containment Spray Systems operable, restore the inoperable group of cooling fans to operable status within 7 days, or be in at least hot standby within the next 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> and in cold shutdown within the following 30 hours3.472222e-4 days <br />0.00833 hours <br />4.960317e-5 weeks <br />1.1415e-5 months <br />.

Technical Specification 3.6.2.3.b requires:

With two groups of Containment Cooling Fans inoperable and both Containment Spray Systems operable, restore at least one of the inoperable groups of cooling fans to operable status within 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br />, or be in at least hot standby within the next 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> and in cold shut-down within the following 30 hours3.472222e-4 days <br />0.00833 hours <br />4.960317e-5 weeks <br />1.1415e-5 months <br />.

CORRECTIVE ACTION:

No. 23 CFCU Flow Transmitter sensing lines were blown down to remove the silt. The transmitter tested satisfactorily and the unit was returned to service. At 1910 hours0.0221 days <br />0.531 hours <br />0.00316 weeks <br />7.26755e-4 months <br />, March 1, 1982 Action Statement 3.6.2.3.b was terminated. A program to blow down transmitter sensing lines at regular intervals is in effect; the frequency of problems with silt in transmitters has been reduced.

Valve 22SW223 was exercised, service water flow was restored to l No. 22 CFCU, and the unit was raturned to service. Action Statement 3.6.2.3.a was terminated March 5, 19 9 2 a t 0130 hours0.0015 days <br />0.0361 hours <br />2.149471e-4 weeks <br />4.9465e-5 months <br /> .

Due to recurrent problems of this type, daily operation of CFCUs in low speed was commenced in December 1982 (per revision of Operation Directives 40-46). No further problems have been noted since that time. Running the CFCU results in cycling of the associated control valves and has apparently eliminated the problem with the sticking of these valves.

LER,82-17/03X-1 '

-FkILURE DATA:

(

Fischer and Porter Co.

- Differential-Pressure Flow Transmitter Model 10B2495 Fischer Controls

' 8 inc' Vee-ball Valve Type 657-8U Prepared By R. Frahm )b&k Gpneral Managdr -

Salem Operations SORC Meeting No.83-119

+

j i

i g ,-w -,

r -r,,-- n-, ,--. . . . , + . - ,- - - ,, , ,,, ,a.-,.,,,,,,n,,w, ----,,,,,---r--.,

a - - - - - - , - . . . - ..

r

. :O' PSIEG Public Service Electric and Gas Company P.O. Box E Hancocks Bridge, New Jersey 08038 Salem Generating Station November 21, 1983 Dr. Thomas E. Murley Regional Administrator USNRC Region 1 631 Park Avenue King of Prussia, Pennsylvania 19406

Dear Dr. Murley:

LICENSE NO. DPR-75 DOCKET NO. 50-311 REPORTABLE OCCURRENCE 82-17/03X-1 The referenced Licensee Event Report was inadvertently reported as being reviewed by the Station Operations Review Committee (SORC) at meeting No.83-118 instead of No.83-119. The corrected report is attached.

Sincerely yours, L. sfA-g r, J. M. Zupko, Jr.

General Manager -

Salem Operations JR:kll I CC: Distribution l

l l

l The Energy People v 4[ai

/ 5

^e i 11 el