ML20199E639

Part 21 Rept Re Failure of EG-A Control Serial Number 1425251 on 980109.Engine System Incorporated Has Been Notified of Situation & Understands That Part 21 Notification Being Submitted Based on Coc

ML20199E639
Person / Time
Site:	Summer
Issue date:	01/28/1998
From:	Zaccone M SOUTH CAROLINA ELECTRIC & GAS CO.
To:	Stransky B NRC
References
REF-PT21-98 33613, NUDOCS 9802020210
Download: ML20199E639 (2)

Text

_ _ _ _ _ _ . . _ _ . , , . _ _ - - _ - - . - - - _ _ _ _ _ _ _ _ _ _ - - _ - _ _ _ - - -

'. ATTACHMENT I PAGE 10F 2 imo FORM 361(s 89) U. S. NUCLEAR REGULATORY COMMISION~

. *-

• NRC NOTIFICATION

• OPERATIONS CENTER EVENT NOTIFICATION WORKSHEET NoTIFICAllON TIME FACluTY OR OHGAN!ZAllON uNil cALLEft3 NAME iDet Virgil c. Summer Nuoteer Stetten Michael J. Resoone CALA. BACK e : ENS _

1 or(301) gli,. 8100 EVENT TIME & ZONE EVENT DATE 1.Hr L; 1-- _ ,10 cPR 80.73 (II)(1) (v) Lost Offeno comme AESS 1700 eST ettt?48 (h(A) Ts Requred Shutdown ASHU M Fro

~__ AFim POWER / MODE BErORE POWER / MODE M(e) 1s Deviston ADEV AFTER (vi) Tonc Gas ACHE 100% / Mode 1 100% / Mode 1 (f) CwesedC A . ADEG M Red Release ARAD OI)(A) U.e Gaed ( . ndtion AUNA M Other Herreering Sets Oc AHIN EVSNT CL4eSIPICATiolt 9)(B) Outside Design Sees AouT s.Hr. Non-Sneergency 10CFR 00,7t(b)(t)

GENERAL EME AGENCY GEN /AAEC (s)(C) Not Cwered by ops /EPS ACNc Degrade Whee s,D (0 ADAS SITE ARE A EMF RGENCY SIT /AAEc (81) EartM ANEA (ii) RPS Actuaton(screm) ARPS ALERT ALEJAAEC (M Flood ANFL @) ESF Actuetton AESF UNUSUAL EVENT UNU/AAEC Hurrtoene (h0 ANHU (n0(A) Sete S!D C+;+9i AINA 60 72 NON EMERGCNCY (e e Nest columns) (E) looMel ANIC (iii)(B) RHR CW Lf AINB PHYSICAL SECURITY (73 71) 0??? (W) Ughtnang ANU T RANSPORT ATION M(C) Coreralof RAD Re.leets AING NTRA (iii) Tomedo ANTO 90.403 MATERIAL / EXPOSURE B???

(ill)(D) Aeoiders Ma-m AIND-(iii) Other Nettral Phenomenon ANOT (w)(A) Air Reteese > RX App B AAIR OTHER; No AM, NLCO, NLBL. NINF, (iv) ECCS Dacharge to RCS ACCS (w)(B) UQ e4eisees > 2X App B AUo NLTR, NONR (v) Lost ENS AFNS (v) Onene med6 ort AMED CDE F. PLOM, ElHR, GCON (v) Lost Emerg ? --- Tei AARC M Onene NotM=i APRE DESCRIPTION X (I doy) Port 21 Noteneetten .

This notification is made pursuant to 10 CFR Part 21 On January 9,1998, Condition Evaluation Report 98-0038 and Non Conformance Notice (NCN) 98-0038 reported the failure of EG A control, serial number 1425251. Due to potential applications in the industry and the safety significance of its application as a governor control for Emergency Diesel Generators (EDGs), this failure is considered to be reportable under 10 CFR Part 21. In this case, V. C. Summer Nuclear Station ensured that adequate testing had ,

been periormed to the associated EG A to verify its operable status. The vendor. Engine Systems, incorporated (ESl), has been notified of this situation and understands that a Part 21 notification is being submitted based on their certification of conformance on the EG A with inadequate post-returbishment bench testing by the vendor, that did not identify intermittent t

failures in electrical components (such as potentiometers and zoner diodes).

A team from VCSNS procurement engineering flow to the vendor's repair facility (Woodward Governor Company) in Fort Collins, CO, to evaluate their repair program. Future pt.rchase requisitions for EG A repair / refurbishment willinclude requirements for a 50 hr burn in and bench testing of the EG A control for detection ofintermittent failures.

-e.,,.-.-,.ec~,...-..n..e........

NOTIFICATIONS _YES NO WILL BE ANYTHING UNUSUAL oR NOT UNDERSTOOD?

__NRC RESTONET YES- X No X

(Esi A r.eb w e)

STATE (s)

X NO otD ALL SYSTEMS FUNCTION AS REoutRED? X YES (Egilah etxws) j EAL _ K MER GOV AGFNCIES X MOoE oF OPERATION

)

, aAEDLA/ PRESS RELEASE ESTIMATE FOR ADomoNAL INFO X UNTIL CORRECTED: Mode 1,100%

1. sacFo h Jei p e) RESTART DATE: ItA X ON BACK?

9002020210 980120 PDR ADOCK 05000395 S PDR

?OWER REACTOR EVENT NUMBER: 33613 FACILITY : SUMMER REGION: 2 UNIT: NOTIFICATION DATE: 01/28/98

[1] - [ j () STATE: SC NOTIFICATION TIME: 15:42 (ET)

Rh TYPEi (IT W-3-LP EVENT DATE: 01/27/98 EVENT TIME: 17:00(EST)

Nn*C NOTIFIED BY: MICHAEL ZACCONE LAST UPDATE DATE: 01/28/98 HQ OPS OFFICER: BOB STRANSKY NOTIFICATIONS EMERGENCY CLASS. NOT APPLICABLE 10 CFR SECTION: CHRIS CHRISTENSEN RDO CCCC 21.21 UNSPECIFIED PARAGRAPH VERN HODGE NRR UNIT SCRAM CODE RX CRIT INIT PWR INIT RX MODE CURR PWR CURR RX MODE 1 N Y 100 POWER OPERATION 100 POWER OPERATION EVENT TEXT PART 21 REPORT REGARDING WOODWARD GOVERNORS FOR DIESEL GENERATORS THE FOLLOWING INFORMATION WAS SUBMITTED BY THE LICENSEE VIA FACSIMILE:

"ON JANUARY 9, 1998, CONDITION EVALUATION REPORT 98-0038 AND NCNCONFORMANCE NOTICE (NCN) 98-0038 REPORTED THE FAILURE OF EG-A CONTROL, SERIAL NUMBER >

1425251. DUE TO POTENTIAL APPLICATICNS IN THE INDUSTRY AND THE SAFETY SIGNIFICANCE OF ITS APPLICATION AS A GOVERNOR CONTROL FOR EMERGENCY DIESEL GENERATORS (EDGs) , THIS FAILURE IS CONSIDERED TO BE REPORTABLE UNDER 10 CFR PART 21 IN THIS CASE, V.C. SUMMER NUCLEAR STATION ENSURED THAT LDEQUATE TESTING HAD BEEN PERFORMED TO THE ASSOCIATED EG-A TO VERIFY ITS OPERABLE STATUS. THE VENDOR, ENGINE SYSTEMS, INCORDORATED (ESI), HAS BEEN NOTIFIED OF THIS SITUATION AND UNDERSTANDS THAT A PART 21 NOTIFICATION IS BEING SUBMITTED BASED ON THEIR CERTIFICATION OF CONFORMANCE ON THE EG-A WITH INADEQUATE POST-REFURBISHMENT BENCH TESTIMG BY THE VENDOR THAT DID NOT IDENTIFY INTERMIT' ENT FAILURES IN ELECTRICAL COMPONENTS (SUCH AS POTENTIOMETERS A 7 ZENER DIODES) .

A TEAM FROM VCSNS PROCUREMENT ENGINE $ RING FLEW TO THE VENDOR' S REPAIR FACILITY (WOODWARD GOVERNOR COMPANY)

• IN FORT COLLINS, CO, TO EVALUATE THEIR REPAIR PROGRAM, FUTURE PURCHASE REQUISITIONS FOR EG-A REPAIR / REFURBISHMENT WILL INCLUDE REQUIREMENTS FOR A SO HOUR BURN-IN AND BENCH TESTING OF THE

=

EG- A CONTROL FOR DETECTION OF INTERMITTENT FAILURES. "

-VVI v )

I i 1 l .i j j