ML18005A205

LER 87-061-00:on 871016,flow Rate Instruments for Waste Processing Bldg Vent Stacks 5 & 5A Declared Inoperable. Caused by Personnel Error.Meeting Held to Discuss Similar Event.Operator Involved Counseled on item.W/871112 Ltr

ML18005A205
Person / Time
Site:	Harris
Issue date:	11/12/1987
From:	Schwabenbauer, Watson R CAROLINA POWER & LIGHT CO.
To:	NRC OFFICE OF ADMINISTRATION & RESOURCES MANAGEMENT (ARM)
References
HO-870554-(O), LER-87-061, LER-87-61, NUDOCS 8711160269
Download: ML18005A205 (5)

Text

REGUL RY INFORMATION DISTRIBUTI SYSTEM (RIDS)

ACCESSION NBR: 8711160269 DOC. DATE: 87/11/12 NOTARIZED: NO DOCKET ¹ Cq FACIL: 50-400 Shearon Harv is Nuclear Poeer Planti Unit iI Carolina 05000400 AUTH. NAME AUTHOR AFFILIATION SCHWABENBAUERi Carolina Poujer 8c Light Co.

WATSON'. A. Carolina Power 8c Light Co.

RECIP. NAME RECIPIENT AFFILIATION

SUBJECT:

LER 87-061-00: on 871016I floe rate instruments for WPB stacks 5 5 5A declared inoperable. Caused bg personnal error. Meeting held to discuss similar events 5 operator involved counseled on item. W/871112 itr.

DISTRIBUTION CODE: IE22D COPIES RECEIVED: LTR i ENCL TITLE: 50. 73 Licensee Event Report (LER) I Incident Rpt.

Letc.SIZE:

NOTES: Application for permit renewal filed. 05000400 RECIPIENT COPIES RECIPIENT COPIES ID CODE/NAME LTTR ENCL ID CODE/NAME LTTR ENCL PD2-1 LA 1 1 PD2-1 PD 1 1 BUCKLEY. B 1 1 INTERNAL: ACRS MICHELSON 1 1 ACRS MOELLER 2 2 AEOD/DOA 1 1 AEOD/DSP/NAS 1 1 AEOD/DSP/ROAB 2 2 AEOD/DSP/TPAB 1 ARM/DCTS/DAB .1 1 DEDRO 1 1 NRR/DEST/ADS 1 0 NRR/DEST/CEB 1 1 NRR/DEST/ELB 1 1 NRR/DEST/ ICSB 1 1 NRR/DEST/MEB 1 1 NRR/DEST/MTB 1 1 NRR/DEST/PSB 1 1 NRR/DEST/RSB 1 1 NRR/DEST/SQB 1 NRR/DLPG/HFB 1 1 NRR/DLPG/GAB 1 1 NRR/DOEA/E*B 1 1 NRR/DREP/RAB 1 1 NRR/DREP/RPB 2 2

/SIB 1 NRR/PMAS/ILRB 1 1 RE 02 1 RES DEPY GI 1 1 RES TELFORDz J 1 1 RES/DE/EIB 1 1 RQN2 FILE 01 1 EXTERNAL: EG8cQ GROHi M 5 5 H ST LOBBY WARD 1 LPDR 1 1 NRC PDR 1 1 NSIC HARRISI J ,1 1 NSIC MAYSI G 1 1 TOTAL NUMBER OF COPIES REQUIRED: LTTR 45 ENCL 44

13 NRC Fc<m 355 U.S. NUCLEAR REOULATORY COMMISSION (953) APPROVED OMB NO. 31504101 EXPIRES: 5/31/BS LICENSEE EVENT REPORT (LER)

DOCKET NUMBER (2) PA E 3 FACILITY NAME (1)

SHEARON HARRIS NUCLEAR POWER PLANT, UNIT 1 0 5 0 0 0 4 0 0 1 OF P 3 TECHNICAL SPECIFICATION VIOLATION DUE Tp MISSED FLOW RATE ESTIMATE CAUSED BY PERSONNEL ERROR.

EVENT DATE (5) LER NUMBER IS) REPORT DATE It) OTHER FACILITIES INVOLVED (SI Q'EOVSNTIAL DAY YEAR FACILITYNAMES DOCKET NUMBER(S)

MONTH DAY YEAR YEAR NUMBER NUMBER MONTH 0 5 0 0 0 10 16 8787 0 6 1 00 111 287 0 5 0 0 0 THIS REPOAT IS SUBMITTED PUASUANT T0 THE REOUIREMENTS OF 10 cFR ('It (Check one or more of the follortlnfl (11 OPERATINQ MODE (9) 5 20A02Btl 20A05(c) 50.73(e) (2) (lvl 73.7)(lt)

POWER 20A05(el(1)(0 SODS(c) (1) 50.73(eH2)(vl 73.71(c)

LEVEL OTHER ISpeclfy In Aht trect p p p 20 A05 (e) (I l(Q I 50.35(cl(2) 50,73(e) I 2) (v)l) helow end In Tent, HRC Form 20A05(e) (I ) (ill) 50.73(e) (2)(l) 50,73(el(2)(villi(BI 50.73(el(2) (rill)(Al 366AI 20AOBN) (1) (iv) 50.73(el(2) (il) 20A05(e I (1Hv) 50.73(e) (2) (III) 50.73(e) (2) (x I LICENSEE CONTACT FOR THIS I.ER (12I NAME TELEPHONE NUMBER AREA CODE R. SCHWABENBAUER REGULATORY COMPLIANCE TECHNICIAN 9 19 362 -2...Souci: 669 COMPLETE ONE LINE FOR EACH COMPONENT FAILURE DESCRIBED IN THIS REPORT (13)

EPORTABLE rn 'v(, y MANUFAC. EPORTABLE )6 Ir COMPONENT MANUFAC CAUSE SYSTEM COMPONENT CAUSE SYSTEM TURER TO Ni'RDS TUAER TO NPADS

$ 4 '

'Xr X~<X 9 2 x Rl csAe r PMN!0 MONTH DAY YEAR SUPPLEMENTAL REPORT EXPECTED (Ie)

EXPECTED SUBMISSION DATE (15)

YF s Ilfyet, complete ExpEcTED s(IBertlssloH DATEI NO ABSTRACT gllpILDr.t+2.cprcet, I e., epproeimetety fifteen tlnf/ecpece typcwrftten llnctl (15)

The plant was in Mode 5, Cold Shutdown, at 0 percent reactor power on October 16, 1987. Technical Specifications (TS) 3.3.3.11 Table 3.3-13 Action 46 requires that flow rates from Waste Processing Building (WPB) Vent Stacks 5 and SA be estimated once per four hours when the flow rate instrument is inoperable.

On October 16, 1987 the flow rate instruments for WPB vent stacks ~ and 5A were declared inoperable. Flow rate estimates were made at 1200 hours0.0139 days <br />0.333 hours <br />0.00198 weeks <br />4.566e-4 months <br /> and at 2000 hours0.0231 days <br />0.556 hours <br />0.00331 weeks <br />7.61e-4 months <br />, a period of eight hours. Flow rate estimates were not recorded for the 1600 hour0.0185 days <br />0.444 hours <br />0.00265 weeks <br />6.088e-4 months <br /> reading as required by TS. The missed reading was discovered by Radwaste personnel during a review of the log sheets.

The cause of the event was personnel error on the part of the Radwaste Control Operator as he failed to record the 1600 hour0.0185 days <br />0.444 hours <br />0.00265 weeks <br />6.088e-4 months <br /> flow rate estimate on the log sheet.

Corrective actions include A) a meeting was held for all shift foreman to discuss this and similar events, B) the operator involved was counseled on this item, C) the stack flow rate estimates are now logged at two hour intervals, D) a copy of this LER will be routed to all Radwaste Foreman to be reviewed by each Shift Foreman, and E) problems with stack flow instruments will be resolved such that stack flow estimates are no longer required to be logged.

This event is being reported in accordance with 10CFR50.73(a)(2)(i)(B) as a violation of Technical Specifications.

87i i 160269 87i i i2 PDR ADOCK 05000400 NRC Form 355 8 PDR m nvt

is NRC Sons 34SA U.S, NUCLEAR REOULATORY COMMISSION (033)

LICENSEE EVENT REPORT ILER) TEXT CONTINUATION APPROVED OMS NO. 3150-0104 EXPIRES: 0/31/SS fACILITYNAME (1) DOCK ET NUM S E R (2 I LER NUMSER (SI ~ AOE (3) 55OVENTIAL SEVUION SHEARON HARRIS NUCLEAR POWER PLANT YEAR NVM Tll NVM 50 UNIT 1 o s o o o 400 87 061 000 '2 oF 03 TEXT /// mom Hwco /4 nyked, ooo ///SOAA////IC Sons 3//SA 4/ (IT)

DESCRIPTION:

The plant was in Mode 5, Cold Shutdown, at 0 percent reactor power on October 16, 1987. Technical Specifications (TS) 3.3.3.11 Table 3.3-13 Action 46 requires that flow rates from the Waste Processing Building (WPB)(EIIS:NE) Vent Stacks 5 and 5A (EIIS:VH) be estimated once per four hours when the flow rate instrument is inoperable.

On October 16, 1987, the flow rate instruments for the WPB vent stacks 5 and 5A were declared inoperable. Flow rate estimates were recorded at 1200 hours0.0139 days <br />0.333 hours <br />0.00198 weeks <br />4.566e-4 months <br /> and then again at 2000 hours0.0231 days <br />0.556 hours <br />0.00331 weeks <br />7.61e-4 months <br />, a period of eight hours. The flow rate estimates were not recorded at 1600 hours0.0185 days <br />0.444 hours <br />0.00265 weeks <br />6.088e-4 months <br /> as required by TS. The missed reading was discovered by Radwaste personnel during a review of the log sheets.

The stack flow rate is required to calculate release rate to the atmosphere from the plant stacks. An estimated flow rate, when used, provides a more conservative number when determining total dose. This is performed by determining which fans exhaust to each stack that are in service by (1) inspection of the WPB Heating, Ventilating and Air Conditioning (HVAC) Panel for fans which are started/stopped from that location, (2) verbal communications with Chemistry personnel for those fume hood exhaust fans which are startedlstopped from the hot lab. The design flows of each in-service fan are then totaled to yield an estimated flow rate.

CAUSE'he cause of the event was personnel error. The radwaste operator had obtained the required information', however, he failed to enter the 1600 hour0.0185 days <br />0.444 hours <br />0.00265 weeks <br />6.088e-4 months <br /> flow rate estimates for vent stacks 5 and 5A onto the log sheets.

ANALYSIS:

This event is being reported in accordance with 10CFR50.73(a)(2)(i)(B) as a violation of Technical Specifications.

There were no safety consequences as a result of this event. The flow rate estimates prior to and after the missed 1600 hour0.0185 days <br />0.444 hours <br />0.00265 weeks <br />6.088e-4 months <br /> readings are identical and it is reasonable to assume that no additional fans were run which would adversely affect the total release rate. Therefore, the stack flow rate was assumed to be constant throughout the interval for offsite dose calculation. ~

If additional fans had been started and then secured between 1200 and 2000, the release rate would be underestimated for that time interval.

Also, the radiation monitors for these vent stacks were operable and would have alarmed if release concentrations would have reached alarm limits.

A similar event was reported in LER-87-022-00 where an estimated flow rate was not done as required.

N/IC SORM 544A ~ U.S.OPO:1000 04)24 d3S/4dd 1043)

NRC form 344A U.S. NUCLEAR REOULATORY COMMISSION 104LII LICENSEE EVENT REPORT ILER) TEXT CONTINUATION APPROVED OMB NO. 3160M104 EXPIRES: 0/31/BB fACILITYNAME ill DOCKET NUMBER 131 LER NUMBER 141 PACE 131 YEAR 5KQVSNTIAL IIEVISICN SHEARON HARRIS NUCLEAR POWER PLANT NVM 40 NVM SII IT l TEXT /4'mo<<<<>>oo ls <<ovlorE I>>o of/IOI>>n/f////C form 3///IA3/ I IT) os ooo40 0 8 7 0 6 I 00 03 OF 0 3 CORRECTIVE ACTIONS/ACTION TO PREVENT RECURRENCE:

I) A special meeting was held for all Shift Foreman to discuss LER's.

2) The operator involved was counseled on this problem.

3) The vent stack flow estimates are now logged at two hour intervals rather than four hour intervals as previously noted on log sheets.

4) A copy of this LER will be routed to all Radwaste Foreman to be reviewed by each Shift Foreman.

5) The vent stack flow instrument problems will be resolved such that the stack flow estimates are no longer required to be logged.

NRC $ 0<<M 344A *U.S.OPO:I OBHH34 534/455 10431

~ ~

Carolina Power & Light Company HARRIS NUCLEAR PROJECT P.O. Box 165 New Hill, NC 27562 NOV 12i98~

File Number.'HF/10-13510C Letter Number.'HO-870554 (0)

U.S. Nuclear Regulatory Commission ATTN: NRC Document Control Desk Washington, DC 20555 SHEARON HARRIS NUCLEAR POWER PLANT UNIT 1 DOCKET NO. 50-400 LICENSE NO. NPF-63 LICENSEE EVENT REPORT 87-061-00 Gentlemen.'n accordance with Title 10 to the Code of Federal Regulations, the enclosed Licensee Event Report is submitted. This report fulfills the requirement for a written report within thirty (30) days of a reportable occurrence and is in accordance with the format set forth in NUREG-1022, September, 1983.

Very truly yours, R. A. Watson Vice President Harris Nuclear Project RAW:skm En'closure cc'. Dr. J. Nelson Grace (NRC RII)

Mr. B. Buckley (NRR)

Mr. G. Maxwell (NRC SHNPP)

/gg,Z MEM/LER-87-061/1/Osl