ML20029E200

LER 94-006-00:on 940414,SS Recognized That Required Frequency for Performing STP 057-3705 Had Been Exceeded. Caused by Inadequate Supervisory Methods.Corrective Action: Inhouse Tracking Process Will Be created.W/940513 Ltr

ML20029E200
Person / Time
Site:	River Bend
Issue date:	05/13/1994
From:	James Fisicaro, Lorfing D ENTERGY OPERATIONS, INC.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
LER-94-006-01, LER-94-6-1, RBG-40582, NUDOCS 9405170181
Download: ML20029E200 (6)

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PO Dox 220 R: Francsyme, LA 70775 May 13,1994 U.S. Nuclear Regulatory Commission Document Control Desk Washington, D.C. 20555

Subject:

River Bend Station - Unit 1 Docket No. 50-458 License No. NPF-47 Licensee Event Report 50-458/94-006 File Nos.: G9.5, G9.25.1.3 RBG- 40582 Gentlemen:

In accordance with 10CFR50.73(a)(2)(i)(B), enclosed is the subject report.

Tmly yours, y

James. J. Fisicaro Director - Nuclear Safety

' JJF/MKB Enclosure i

-9405170181 94o5g3 gDR ADOCK 05000458 ,

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PDR ,

cc:* U.S. Nuclear Regulatory Commission 611 Ryan Plaza Drive, Suite 400 Arlington, TX 76011 NRC Resident Inspector P.O. Box 1051 St. Francisville, LA 70775 INPO Records Center 700 Galleria Parkway

! Atlanta, GA 30339-3064 Mr. C.R. Oberg Public Utility Commission of Texas 7800 Shoal Creek Blvd., Suite 400 North Austin, TX 78757 Louisiana Department of Environmental Quality Nuclear Energy Division P.O. Box 82135 Baton Rouge, LA 70884-2135 ATTN: Administrator l

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l NRC FOHM 366 U.S. NUCLEAR REGULATORY CoMMISSloH APPROVED BY OMB NO. 3150-0104 1 3M , EXPIRES 5/31/95 E ST MATED 13URDEN PER DESPONSE TO C.OMPL Y w, t e T Hi s LICENSEE EVENT REPORT (LER) 2"OsitEnlLss'MJ 0"" ,NM'EZ E

/M DECORDS M ANAGEMENT PG% ? t IMNPE4 m t U S NUCLE AR REGULATORY COMMl$3lON, W ASMlNGTON, [lC 20$$5 0001. AND 10 THE PAPERWORA Rf DUCTION PRCUECT (31500 04 DF i tCE 05 (See reverse for required number of digits / characters for each block) MANAGEMENT AND BJDGET, W ASHINGTON, DC 205C3.

l F ACILITY NAME (t) DOCKE T NUMllE R (2) PAGE(4 RIVER BEND STATION 05000 458 10F 4 i

TliLE (4) l Missed Containment Airlock Door Seal Surveillance 1 l EVENT DATE (5) LER NUMBER (6i REPORT NUMBER (7) OTHER FACILITIES INVOLVED (8)

MONTH DAY VEAR YEAR MONT H DAY YEAR 00 f ACiUTY NAME DOCKET NUWER 04 14 94 94 006 00 05 13 94 05000 l l

OPERATING THIS REPORT IS SUBMITTED PURSUANT TO THE REQUIREMENTS OF 10 CFR 6: ICheck one or more) (11) '

MODE (9) ,

I 20.402tb) 20.405(c) 50.73(a)(2)(iv) 73 71(b)

POWER 20 405(a)(1)(i) 50 36(c)(1) 50.73(a)(2)(v) 73 7)(c)

LEVEL (10) 96 20 405(a)(1)(n) 50.36(c)(2) 50.73(a)(2)(vu) OTHER l 20 405(a)(1)(ui) y 50.73(a)(2)(i) 50.73(a)(2)(vui)(A) N*c#v 'a Ab**d j 20.405(a)(1)(iv) 50.73(a)(2)(ii) 50.73(a)(2)(viu)(B) r$$3NA3 l 20 405(a)(1)(v) 50.73(a)(2)(ui) 50.73(a)(2)(x)

LICENSEE CONTACT FOR THIS LER (12) l NAME TE.LE' HONE NUMBt.H pncivde Area Cocle)

DAVID N. LORFING, SUPERVISOR-NUCLEAR LICENSING (504)381-4157

[ COMPLETE ONE LINE FOR EACH COMPONENT FAILURE DESCRIBED IN THIS REPORT (13)

REPORTABLE' REPORf ADI E CAU5E S ts REM COMPONENT MANUFACTUREH CAUSE SYS TEM COMPONE NT MANUFACTURER TO NPRDS TO NPROS SUPPLEMENTAL REPORT EXPECTED (14) EXPECTED "" D*Y " A" Yrs

" SUBMISSION N yn. compie'e E XPEC'ED SUBM'SSION DATE) X DATE (15)

ABSTRACT (Limit to 1400 spaces, i e., approximately 15 single-spaced typewritten knes) (16)

At 0133 hours0.00154 days <br />0.0369 hours <br />2.199074e-4 weeks <br />5.06065e-5 months <br /> on April 14, 1994, with the reactor in Operational Condition 1 (Power Operation), the Shift Superintendent (SS) recognized that the required frequency for performing Surveillance Test Procedure (STP) 057-3705 had been exceeded. The SS recognized this condition when he was documenting the successful completion of this surveillance in the daily surveillance tracking sheet. The frequency had been exceeded by a small fraction of the required 72 hour8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> frequency. This STP verifies the operability of the airlock door seals 9s required by Surveillance Requirement 4.6.1.4.a.

The root cause of this event is inadequate Supervisory Methods which did not adequately tack and schedule the completion of STPs with a frequency of less than seven days.

Corrective actions include a review of associated Supervisory Methods and appropriate revisions to ADM-0015 to better define the division of responsibilities.

The satisfactory performance of the STP on April 14, 1994 demonstrated that the seals were operable )

and that the airlock doors were capable of performing their safety function during the 45 minutes that '

the required frequency was exceeded.

NRC FORM 366 l5 W)

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REQUIRED NUMBER OF DIGITS / CHARACTERS l FOR EACH BLOCK '

( BLOCK NUMBER OF TITLE NUMBER DIGITS / CHARACTERS  !

1 1 UP TO 46 FACILITY NAME 2 BER 3 IN ADDITIO TO 05000 l

3 VARIES PAGE NUMBER 4 UP TO 7t; TITLE 5 EVENT DATE 2 PER BLOCK J 7 TOTAL 6

^

LER NUMBER 3 FOR SEQUENTIAL NUMBER 2 FOR REVISION NUMBER 7

^L REPORT DATE PER BLOCK UP TO 18 - FACILITY NAME 8 OWER FACOTIES IWOMD 8 TOTAL - DOCKET NUMBER 3 IN ADDITION TO 05000 3

9 1 OPERATING MODE i

10 3 POWER LEVEL l' REQUIREMENTS OF 10 CFR 1 CHECK BOX THAT APPLIES 12 UP TO 50 FOR NAME 14 FOR TELEPHONE OMACT CAUSE VARIES 2 FOR SYSTEM 13 4 FOR COMPONENT EACH COMPONENT FAILURE 4 FOR MANUFACTURER NPRDS VARIES 14 S A OM NECTED CHECK BOX THAT APPLIES 15 EXPECTED SUBMISSION DATE 2 PER BLOCK i

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NRC FORM 366A '

U.S. NUCLEAR REGULATORY COMMISSION APPROVED BY OMB NO. 3150-0104 5 92 EXPIRES 5/31/95 ESTIMATED BUADEN PEA RESPONSE TO COMPLY wtTH THl$

LICENSEE EVENT REPORT (LER) v

$2*?SsiEESDia"CRi# s'M4r'E90 0 J Mir's l TEXT CONTINUATION QUES C$7sMMC* T** 3ro ','d'.iM,"fo%

THE FAPEAWORK AEDUCTION PRCLlECT (3150-ct04j. OFFICE OF MANAGEMENT AND BUDGET. WASHINGTON. DC 20503 F ACILITY N AME (t) DOCKET NUMBE R (2) LER NUMBE R (s) PAGE (3)

SL(NENLA. RE v:SiON NUMBE R NUMBEA RIVER BEND STATION 05000458 2OF4

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94 - 006 00 TEXT tilino o space os towea use eco conei cop,es et NHC f orm 1%y (11)

REPORTED CONDITION At 0133 hours0.00154 days <br />0.0369 hours <br />2.199074e-4 weeks <br />5.06065e-5 months <br /> on April 14, 1994, with the reactor in Operational Condition 1 (Power Operation), the Shift Superintendent (SS) recognized that the required frequency for perfonning Surveillance Test Procedure (STP) 057-3705, Primary Containment Airlocks Seal Leakage Rate Test, had been exceeded.

The SS recognized this condition when he was documenting the successful completion of this surveillance on the daily surveillance tracking sheet. The frequency had been exceeded by a small fraction of the required 72 hour8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> frequency. This STP verifies the operability of the airlock (*AL*)

door seals as required by Surveillance Requirement 4.6.1.4.a. This report is being submitted pursuant to 10CFR50.73(a)(2)(i)(B) as operation prohibited by the Technical Specification to document the non-compliance with the surveillance requirement.

l l INVESTIGATION l

Prior to the discovery of this condition, the previous perfonnance of STP 057-3705 was documented on i l the daily surveillance tracking sheet by the SS at 2316 hours0.0268 days <br />0.643 hours <br />0.00383 weeks <br />8.81238e-4 months <br /> on Sunday, April 10,1994. This  ;

surveillance is nonnally performed every Monday morning, Wednesday evening, and Friday evening.

l This routine has been in effect for the past year and has worked effectively. This schedule allows the l

! surveillance to be perfonned during slow traffic periods and spans the weekend to minimize the work I l

required during weekend periods. On Sunday night, April 10,1994, the Mechanical Supervisor on duty decided to perfonn the STP in lieu of performing it on Monday morning. This would allow Monday day shift to work on other items that were being perfonned in preparation for the upcoming refueling l outage. At this time no schedule adjustment was made to assure that the next STP perfonnance would ,

comply with the Technical Specification surveillance frequency. Consistent with routine practice, the  ;

next STP was started Wednesday evening, April 13,1994 at 1917 hours0.0222 days <br />0.533 hours <br />0.00317 weeks <br />7.294185e-4 months <br />. The STP was performed I successfully and taken to the Control Room for approval. The SS documented the successful l completion of the surveillance on the tracking sheet at 0133 hours0.00154 days <br />0.0369 hours <br />2.199074e-4 weeks <br />5.06065e-5 months <br /> on April 14, 1994. It was at this time that the SS recognized that the 72 hour8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> surveillance frequency had been exceeded. Using the SS sign-off as the milestone for tracking the surveillance frequency, the 72 hour8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> frequency had been ,

exceeded by approximately 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> and 15 minutes. A more detailed investigation of the actual surveillance performance times by reviewing key card ingress / egress times of maintenance personnel was also performed. This investigation determined that the actual performance of the surveillance l

exceeded the 72 hour8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> frequency by approximately 45 minutes.

l NAC FORM 366A {S 92)

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l MC FORM 366A U.S. NUCLEAR REGULATORY COMMISSION APPROVED BY oMB NO. 3150-0104 mm EXPIRES 5/31/95 l EST1 MATED BURDEN PER RESPONSE TO COMPLY W'TH THIS LICENSEE EVENT REPORT (LER) $$v"7Es"EGf$2E"Ris$ETE900Wr!SME M

TEXT CONTINUATION CH

@v"d'r "JS c gu Ncr;u;B nt4gg,jgEAR THE PAPERWORK REDUCTION PRO. LECT (3150-0104), OFFICE OF MANAGEMENT AND BUDGET, WASHtNGTON. DC 20503 FACILITY NAME (1) DOCKET NUMBER (2) LEH NUMBER (6) PAGE (3)

SEQUENhAi HEV@ON YEAR NUMBER NUMBER 05000458 3 OF 4 RIVER BEND STATION 94 - 006 00 un w n. v.c. nr.o . .aan. e.n.. .e wc +a 3m o n I

ROOT CAUSE The root cause of this event is inadequate Supervisory Methods which did not adequately track and schedule the completion of STPs with a freyency of less than seven days. The methods used to schedule and track the perfonnance of this STP did not specify the required completion time for this surveillance. Therefore this process did not ensure a keen awareness of the required completion time.

I One similar LER has previously been submitted by RBS that involved a late surveillance for an activity that was required to be perfonned on a frequency of less than seven days. This event was reported as LER 86-048. The causal factors associated with LER 86-048 were a poor scheduling process and insufficient accountability for ensuring that daily surveillances were performed on schedule. The particular surveillance that was missed in LER 86-048 was STP-500-4550, "RPCS High and Low Power Setpoint Functional Test." The corrective action was the creation of a daily schedule / checkoff sheet of daily STPs that required the Control Operating Foreman (COF) and Shift Supervisor signoffs.

The corrective actions associated with LER 86-048 have been in place and have been effective in assuring the completion of short frequency surveillances on schedule. However, the division of responsibility was not fully developed and the scheduling practices focused primarily on sarveillance I frequencies without adequate emphasis on the associated " drop dead" times.

CORRECTIVE ACTION

1. Individual departments will be responsible for scheduling, tracking and implementation of STPs assigned to theii functional area. Operations will maintain an oversight role to assure that STPs are performed in a timely fashion. ADM-0015 will be revised to more i clearly define these responsibilities.

2. Each responsible department will review the supervisory / tracking practices for weakness for their functional area (Operations, Security, Chemistry, Reactor Engineering, and Maintenance) which are related to STP's with frequencies less than seven days and event-related STP's. In-house tracking processes will be created / revised as necessary to preclude missed STP's.

3. Mechanical Maintenance has developed a daily tracking process for STP-057-3705 with last perfonned date and time and the next due date and time.

l NRC FORM 366A (S B2;

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e hRC FORM 366A U.S. NUCLEAR REGULATORY COMMISSION APPROVED BY OMB NO. 3150-0104 is v2;  !

EXPlRES 5/31/95 ESTIMATED BURDEN PER RESPONSE TO COMPLY WFH THIS LICENSEE EVENT REPORT (LER) f '

$$0* ES%EGA G RDE AMECORDS MANAGEMENT BVNCH {VNBB Wl, U $ NUCLEAR AE O TEXT CONTINUATION REGULATORf COMutssrON. WASMtNGTON, DC 20656 0001, AND TO THE PAPERWORK REDUCTION PRCLIECT (3150 0104L OFFICE OF M ANAGEMENT ANO BJDGET, WASHINGTON, DC 20503.

F ACILfTY NAME (t) DOCKET NUMBER (2) LER NUMBE.R (5) PAGE(3)

SE QUENl tai RE v! SON WR 05000 458 4 op 4 RIVER BEND STATION -

94 - 006 00 TEXT tu more scoce a requrrea, use naastrone copres of NHC Form 3654) (115 CORRECTIVE ACTION (continued)

4. Personnel in the responsible departments will be briefed on the revisions to ADM-0015 as described in item 1 above. Additionally, the Maintenance Department personnel will be briefed on this event, the corrective actions, and the importance of complying with scSeduled dates and times for surveillances.

l SAFETY ASSESSMENT l

The purpose of this surveillance is to ensure that leakage from primary containment via the airlocks is well within the leakage limits assumed in the design basis of the plant. The satisfactory performance of the STP on April 14,1994 demonstrated that the seals were operable and that the airlock doors were capable of perfonning their safety function during the 45 minutes that the required frequency was exceeded.

l NOTE: Energy Industry Identification System Codes are identified in the text as (*XX*).

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NRC FORM 36aA (5 92)

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