ML20024E874

LER 83-108/01T-0:on 830817,radiation Monitor B Trip Setpoint Found High & Grab Samples & Analyses Started Late.Caused by Personnel Error.Personnel counseled.W/830831 Ltr

ML20024E874
Person / Time
Site:	Grand Gulf
Issue date:	08/31/1983
From:	Byrd R, Dale L MISSISSIPPI POWER & LIGHT CO.
To:	James O'Reilly NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
References
AECM-83-0521, AECM-83-521, LER-83-108-01T, LER-83-108-1T, NUDOCS 8309070156
Download: ML20024E874 (4)

Text

Nec FORM 385 C. S. esACLEAR SEeULATony immanamanas (747)

, LICENSEE EVENT REPORT Attachment to AECM-83/0521 Page 1 of 2 CONTROL sLOCK: l l l l l ePLEAss pneerr OR TYPE ALL REQUIREO INFOnteATsosse

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to 7s REPORT oATE 80 EVENT DESCRIPTION A8eO PROSAaLE COsesEOufMCES h o 2 lan Auoust 15. 1983, while performing the SSW System nadiation Monitor g o a IFunctional T e s t ," the "B" radiation monitor trip setpoint was found abovej o 4 lthe limit of T.S.3.3.7.1. The grab samples and analyses required by the l o s SCO were not started until August 17, 1983, due to personnel error. The g o 6 levent had no af f ect on the health and saf ety of the public and did not g 8 [constitiate a threat to plant safety. This is reported pursuant to l 0 8 IT.S.6.9.1.12.b. This is a final report. l

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• 1 42 43 44 47 lg CAUSE DESCRIPTION ANDCORRECTIVE AcTIOsas h i o lT.S.3.3.7.1 requires the monitor to be oper. in modes 1,2,3 and when theg y lRHR heat exchangers are in oper. The plant was in mode 4 with the heat g i 2 lexchangers being used for shutdown cooling. The surv. cover sheet was g i 3 l incorrectly marked not applicable in this mode. The person involved now g y l understands the reason for his error.The LCO actions were put in effect.,

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' .Attichmint to' AECM-83/0521 Page 2 of 2 SUPPLEMENTARY INFORMATION TO LER 83-108/01 T-0 Mississippi Power & Light Company Grand Gulf Nuclear Station - Unit 1 Docket No. 50-416 ,

Technical Specification Involved: 3.3.7.1 Reported Under Technical Specification: 6.9.1.12.b Event Narrative:

on August 15, 1983, the Standby Service Water System "B" loop setpoint was found above the limits of Technical Specification 3.3.7.1. The monitor is required to be operable in modes 1, 2, 3 and when the RHR heat exchangers are in operation for shutdown cooling. No Limiting Condition for Operation (LCO) was entered as Operations personnel failed to interpret the Technical Specifications correctly.

An LCO.was entered on August 17, 1983, af ter discovery of the event. The grab samples and analyses were begun immediately. Work authorizations were already issued to recalibrate the instrument. The error has been verbally discussed with the shift supervisor involved. This is a final report. This is reported pursuant to Technical Specification 6.9.1.12.b.

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!t MISSISSIPPINbNEkMQGHT Helping Build' Misd sUppi COMPANY ,

EdWdMdiddB P. O . BO X 164 0 J AC K S O N, MIS SIS SIP PI 3 9 2 0 5 NUCLEAR PRODUCTION oEPARTMENT U. S. Nuclear Regulatory Commission Region II 101 Marietta St., N.W., Suite 2900 Atlanta, Georgia 30303 Attention: Mr. J. P. O'Reilly, Regional Administrator

SUBJECT:

Grand Gulf Nuclear Station Unit 1 Docket No. 50-416 License No. NPF-13 File 0260/L-835.0 Grab Sample and Analysis Required by Technical Specification 3.3.7.1 not Performed LER 83-108/01 T-0 AECM-83/0521 On August 15, 1983, while performing the Standby Service Water System Radiation Monitor Functional Test, the "B" radiation monitor trip setpoint was found to be above the limit of Technical Specification 3.3.7.1. The grab samples and analyses required by the Limiting Condition for Operation were not started until August 17, 1983, due to personnel error. This is reported pursuant to Technical Specification 6.9.1.12.b. Attached is LER 83-108/01 T-0 with Supplementary information.

Yours truly.

EN M L. F. Dale Manager of Nuclear Services EBS/SHH: sap Attachment cc: (See Next Page) 4 y<s%GE f#

Member Middle Soutn Utilities System

. 3 AECM-83/0521 Ml?"IllPPI POWER O LIZHT COM'PANY cc: Mr. J. B. Richard (w/a)

Mr. R. B. McGehee (w/o)

Mr. T. B.. Conner (w/o)

Mr. G. B. Taylor (w/o)

Mr. Richard C. DeYoung, Director (w/a)

Office of Inspection & Enforcement U. S. Nuclear Regulatory Commission Washington, D. C. 20555 Document Control Desk (w/a)

U. S. Nuclear Regulatory Commission Washington, D. C. 20555 l

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