ML20009G055

LER 81-028/03X-1:on 810505,confirmed That Routine Release Had Been Made from Miscellaneous Waste Monitor Tank While Radwaste Monitors Were Beyond Surveillance Test Date.Caused by Personnel Error.Memo Written to Review Test Schedules

ML20009G055
Person / Time
Site:	Davis Besse
Issue date:	07/21/1981
From:	Kocis R, Stotz J TOLEDO EDISON CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
Shared Package
ML20009G049	List: ML20009G048 ML20009G055
References
LER-81-028-03X, LER-81-28-3X, NUDOCS 8108030287
Download: ML20009G055 (2)

Text

U.S. NUCLE AR REGULATORY COMMISSION NRC FOftM 366 (7-77) .

LICENSEE EVENT REPORT (PLEASE PalNT OR TYPE ALL REQUIRED INFORMATION)

, CONTROL BLOCK: l i

l l l l l lh ti il@lbl CAT 68l@

I 1o 121 7 8 9 I ol al ol al sl il@l e l ol -l o uCENSE LtCENSEE CODE 14 15 l el 0101 NUMBEH e l-l e l e2bl@l 26 4 l LICENSE 111111 TYPE JO COWT lolil Sg"C I tl@l el 51 o l o f 01314 l 6 l@l 68 O l 5EVENT 69 l 0 lDATE 5 l 8 l 1 l@l 0 l.7 14 lb l 2 l 1 l 8 l1 REPORT DATE 80 lh 7 8 60 61 COCKET NUMBER EVENT DESCRIPTION AND PROBABLE CONSEQUENCES h Compu- 1 l o l 2 l l On 5/5/81 it was confirmed by reviewing the Unit Log and the Surveillance Test l

o a I ter schedule that a routine release had been made from the Misc. Waste Monitor Tank o 4 l while the Radwaste Monitors RE 1878A and RE 1878B were beyond their surveillance test l 1 o s i date. The Monthly Functional Test had not been performed before its late date of l 0 s 14/28/81. The release was made on 5/1/81. Therc: was no danger to the public or staticq o 7 I Personnel. When the test was performed, it verified that the monitors had been opera-l ble during the release and that no release limits were exceeded. (NP-33-81-36)  !

o a 1 SC CAUSE COMP. VALVE SYSTEM CAUSE SUSCODE SU8 CODE COMPONENT CODE SUSCODE CODE CODE o 9 l MI Clh I A lh l Alh l Il NI Sl Tl RI Ul@ l E l@ [Z_j h 13 18 19 20 Y 8 9 10 11 12 REVISION SEQUENTI AL OCCURRENCE REPORT REPORT NO. CODE TYPE NO.

LER EVENT YEAR

'l @ sggROa I 81 il 22 .

I-I 2J l el 21 81 24 26 Ld 27 I al ,I 28 29 Lx_1 30 L-1 31 L1J 32

_ 21 HOURS S8 IT FOR b B. SUPPLIE MAN FACTURER AK N AC ON O P NT MET L_gj@ lelelolol 1 Yl@ l42N l@ l43Zl@ lZ l 9 l 9 l 947l@

1 Inl@lcl@ l Zl@

33 34 35 J6 37 40 43 44 CAUSE DESCRIPTIC,N AND CORRECTIVE ACTIONS h l

lilOllThe cause was personnel error on the nnre of Shire simarvi cm- who cermitted the re-

, , g lease without realizing that the Monthly Functional Test was overdue. Memo M81-1043 h4s

, , ,been written to the appropriate supervisory personnel reinforcing their responsibility l 1

g to review the test schedule. The Radioactive Liquid Release Procedure has been re- l

, , , vised to include verification of operability of the monitors by a shift supervisor. 80 l

F 8 9 oTHER STATUS SO RY DISCOVERY DESCRIPTION s S %ACWER Unit Log Review l W U @ l ol' 91 9l@l"

NA l W @l

'cEnviTY CO0 TENT LOCATION OF RELE ASE RELEASED OF RELE ASE AVOUNT OF ACTIVITY NA }

NA l l 7

1 6 8 9

@ to

@l 11 44 45 80 PERSONNEL EXPOSURES NUV8 E R TYPE DESCRIPTION NA l i 7 1010101@LS@l" *

• * * ,ERSO.NA'iN;uViES DESCRIPTICN NA l 7

i a 8 9 IhUV98R6112 Ol@l 11 80 LOSS OF OR DAVAGE To FACILITY TYPE DESCRIP TION l

NA i 9 I Zl@l'O 80 7 0

• 8108030287 810/21 NRC USE ONLY ,

DESCR tPnON @PDR s ADOCK 05000346 PDR g  ; ggg;;;;;;;;lg n # 0i issVdE@l NA t_ 68 69 80 3

. tZ (419) 259-5000, Ext. 29 PHONE:

NAME OF PHEPARER ,

4 i TOLEDO EDISON COMPANY DAVIS-BESSE NUCLEAR POWER STATION UNIT ONE SUPPLEMENTAL INFORMATION FOR LER NP-33-81-36 DATE OF EVENT: May 5, 1981 FACILITY: Davis-Besse Unit 1 1 IDENTIFICATION OF OCCURRENCE: Liquid release made with radiation monitors RE 1878A' and RE 1878B beyond their surveillance test date Conditions Prior to Occurrence: The unit was in Mode 1 with Power (MWT) = 2750 and Load (Gross MNE) = 915 Description of Occurrence: On May 5, 1981, it was confirmed by reviewirg the Unit 1 Log and the surveillance test computer schedule that a routine liquid release had been made from the Miscellaneous Waste Monitor Tank while the Miscellaneous Radwaste Monitors RE 1878A and RE 1878B were technically inoperable. The monitors were inoperable be-cause their Monthly Functional Test ST 5032.01 had not been performed before its , late date of April 28, 1981 at 0455 hours0.00527 days <br />0.126 hours <br />7.523148e-4 weeks <br />1.731275e-4 months <br />. The routine release was started at 0405 hours0.00469 days <br />0.113 hours <br />6.696429e-4 weeks <br />1.541025e-4 months <br /> 1 on May 1, 1981 and was completed at 0610 hours0.00706 days <br />0.169 hours <br />0.00101 weeks <br />2.32105e-4 months <br /> the same day. If these monitors are inoperable for a period exceeding 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br />, Environmental Technical Specification states that no release from a radioactive liquid waste tank shall be made and any release in progress shall be terminated. This finding is being reported under Environmental Technical Specification 5.4.2 for exceeding a limiting condition for operation.

Designation of Apparent Cause of Occurrence: The cauu, is a personnel error on the 1 part of the Shif t Supervisor who per=itted the release without realizing that the Monthly Functional Test, which is performed by Operations personnel, had not been per- i formed before its late date. Therefore, the monitor was technically inoperable. The test was shown on the Operations section of the schedule as overdue.

Analysis of Occurrence: There was no danger to the health and safety of the public or to station personnel. When the calibration test and functional test was performed later on May 1,1981, it verified that the monitor had been, in fact, operable during the release. No release limits had been exceeded.

Corrective Action: Intra-company memorandum M81-1043 has been written to the appro-priate supervisory personnel reinforcing their responsibility of reviewing the Surveillance Test Schedule and seeing that tests are performed within the deadline.

1 Under Modification T-5587 the Radioactive Liquid Release Procedure, AD 1850.01 has been revised to include a Shif t Supervisor signoff for verification of operability of these radiation monitors.

Failure Data: There have been no previous reports of releases being made with inoperable monitors in excess of Environmental Technical Specification limits.

LER #61-028

-b