RBG-21-270, Responds to Human Factors Engineering Branch Comments Re Suppl 1 to Dcrdr Summary Rept.Revised Human Engineering Discrepancies,Serving as Suppl 2 to Dcrdr Summary Rept,Encl

Responds to Human Factors Engineering Branch Comments Re Suppl 1 to Dcrdr Summary Rept.Revised Human Engineering Discrepancies,Serving as Suppl 2 to Dcrdr Summary Rept,Encl

ML20127K089
Person / Time
Site:	River Bend
Issue date:	06/12/1985
From:	Booker J GULF STATES UTILITIES CO.
To:	Harold Denton Office of Nuclear Reactor Regulation
References
RBG-21-270, NUDOCS 8506270255
Download: ML20127K089 (16)

Text

.

l O !

GULF STATES UTILITIES C'OMPANY RIVER BEND STATION POST OFFICE BOX 220 ST FRANCISVILLE. L.OUISIANA 70775 AREA CODE 504 635 6094 346-8651 June 12, 1985 RBG- 21,270 File Code G9.5, G9.33.4, G9.19.2 Mr. Harold R. Denton, Director Office of Nuclear Reactor Regulation U.S. Nuclear Regulatory Conmission Washington, D.C. 20555

Dear Mr. Denton:

River Bend Station - Unit 1 Docket No. 50-458 In response to ccnments frcm the Human Factors Engineering Branch (HFEB) the attached information is provided regarding Gulf States Utilities Company's (GSU) May 14, 1985 Supplement No. I to the Detailed Control Rocm Design Review (DCRDR) Stmmary Report.

The revised hinan engineering discrepancies (IED's) attached here-in, will serve as Supplanent No. 2 to the River Bend Station DCRDR Stamary Report. This canpletes GSU's response to the April 12, 1985 letter frcm Mr. A. Schwencer to Mr.' W. J. Cahill, Jr.

Sincerely,

. f.

J. E. Booker Manager-Engineering, Nuclear Fuels & Licensing River Bend Nuclear Group

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8506270255 350612 PDR ADOCK 05000458 F PDR

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HUMAN ENGINEERING DISCREPANCY RECORD RIVER BEND NUCLEAR PLANT DAfE: 02/20/04 1 -I tE D NO  :;; 194_,

REVIEWER: DARKS /CllASE/StiANKLE T R ACl:. I NG S T(il uG ; SCHEDULE PHASE DAIA SOURCE: CON ~1ROL ROUM GURVEY - NUREG 0700 CliECKL I S T NO.:

GUIDELINE AREA: CONTROL ROUM WORKSPACE PRODLEM CATEOGRY: ENV I RONML- N T FRUBLEM UUU -- C A T EUUR Y : EMERGENCY LIGitTINU PANEL / WORKSTATION NO. GENERIC

( 1.)

DESCRIPTION OF DISCREPANCY:

DC UAT1ERY PACK EMERGENCY LIGHTING 15 INADEGUATE DEING A MAX. OF 6 FOO1 CANDLES A'l ITS DRIGHTEST SPOT AND NEAR O FOOTCANDLES AT MANY SPOTS.

LIGHIING CRUSES BilADOWS AND DARK AREAS ON THE DOARD RECOMMENDATIONS:

EVALUATE LIGHflNG TO MEET HUMAN FACTORO MAINTENANCE FLAN STANDARDS

< . ' . < . SWEC HAS COMPLETED 11 S ' EVALUATION OF THE OVCRALL LIOllTING DESIGN FOR TliE CONTROL ROOM. 11 UAS DETERMINED T i l AT , DUE T O T HE REDUNDANT POWER SUPPL.lES Di THE EMERGENCY LIGilTING F I X TilRES , Af LEAGT 20% OF THE LIGHTING FIXIURES IS PROVIDED DY LLAOC 1E POWER . WilEN NORMAL AC l'UWLR IU LOST, IIIE LIGitTING IU SUPPLIED UY EITHER DIV 1 GR DIV 2 DIEUEL(S). IN ADDITION, Tile DAT TERY PACKS GUPPLY ADEUUATE LIGHTING FOR T!1E DRIEF PERIOD WilEN Tile DIESEL 10 COMING UP TO OPELD <>

. ACTION:

CIONL & UEDSTER IS EVALU/il1NG CONIROL ROOM LIGHTING AS A REOULT OF DCRDR.

FINAL LlGil f READINGS WILL DE TAKEN AFTER DESIGN CilANGES (IF ANY) ARE IMPLEMENTED AND FLOURING IS INST (iLED.

ELDCRu IGOUE DATE < /

FDDRd ISOUE DATE / /

1 CRITICALITY RATING: 1 IMPLEMENTATLUN SCllLDULE: FRIOR TO IUEL LOAD

)

ENGINEERING DISCREPANCY RECORD HUMAN RIVER BEND N U C L_E A R PL ANT 1-t E D NO = 432 DATE: 02/23/84 REVIEWER: BURGY/ CHASE TRACKIN3 STATUS: SCHEDULE PHASE DATA SOURCE: DWR OWNERS OROUP s CHECKLIST NO.: D2.17 i CHECKLIST AREA: INSTRUMENTATION AND HARDWARE F

4 PANEL / WORKSTATION NO. OENERIC

( 1.)

DESCRIPTION OF DISCREPANCY:

INDICATING DEVICES ARE NOT DECIGNED GO TilAT A FAILURE MODE IS EVIDENT. (NOT KNOWN)

RECOMMENDATIONS:

ESTADLIS;i CONVENTIONS DY INVESTIGATINO FAILURE MODES IN CONTROL ROOM

<G SWEC llAS ESTABLISHED CONVENTIONS. EXAMPLE: FOR DAILEY & WESTRONICS & TI RECORDERS, UPON LOSS OF POWER, ALL RECORDER CHARTS WILL STOP. PENG OPERATINO ON SIGNALS OENERATED FROM THERMOCOUPLE INPUTS WILL FAIL TO TOP OF ' SCALE.

OTHER PENS OPERATING ON 4 TO 20mA OR 1 TO SmA INPUTS WILL FAIL TO DUTTOM CF SCALE. OE 180 AND 105 METERS AND WESTINGHOUSE METERS ,WHICH ARE UGED EXCLUSIVELY IN THE CONTROL ROOM, WILL FAIL DOWNSCALE.OTHER CONVENTIONS ARE COMPARADLE>>>

AC T I ON :

APPROVED BY GSU MANAGEMENT. f EDDCRit ISSUE DATE / /

F D D R it ISSUE DATE / /

CRITICALITY RATING: 1 IMPLEMENTATION SCHEDULE: PRIOR TO FUEL LOAD i.

HUMAN ENGINEERING DISCREPANCY RECORD RIVER BEND NUCt_ EAR P L_. A N T DATE: 02/27/84 HED NO 77 REVIEWER: DARKC/ CHASE /SHANKLE 1 RACI:'ING S f A FUS: dCHEDULE P! :te,SE DATA SOURCE: BWR OWNERS GROUP CHECKLIST NO.. A3.1 CHECKLIST ARCA: PANEL LAYOUT AND DESlON PANEL /WORKGTATION NO. P363-71

( 1.)

PANEL / WORKSTATION NO. P863-72

( 1.)

PANEL / WORKSTATION NO. PO63 --73

( 1.)

PANEL /WORKGTATION NO. P6CO-2

( 1.)

PANCL/WCRKSTATION NO. P600-3

( 1.)

DESCRIPTION OF DISCREPANCY:

CONTROLS AND DISPLAYS ARE NOT UROUPED ACCORDING TO CYSTEM PECOMNENDATIONS:

ADD LINES OF DEMARCATION AND COLOR CODING AS APFROPRIATE  :<< THE LWilCHE0 CM PG63 THAT ARE NOT CROUPED ACCORDING TO SYSTEM ARE OROUPED ACCORDING TO FLOWPATH. THE DISPLAYS ARE GROUPED APPROPRIATELY, DEING IN THE MIDSF CF THE CONTAINMENT VENTILATION SYSTEM. THE CONTROLS ON P6BO ARE GROUPED PROPERLY SINCE THE DISPLAYS ilAVE IquW BEEN CitANCED. HED 412 REARRANOED THE DISPLAYS ON P630 INSERT 3 30 THAT THEY ARE NOW OROUPED BY SYSTEM >;;

ACTIGN:

APPROVED BY CSU MANAGEMENT. : (NO FURTHER ACTIGN REQUIRED s .

E.LDCR4 ISSUE DATE / /

FDDRM IGSUE DATE / /

CRITICALITY f.ATING: 1 IMPLEMENTATION SCHEDULE:

i 9

i 4

k HUMAN ENGINEERING DISCREPANCY RECORD I

/

\ RIVER BEND N U C L.E A R P L. A N T j

DATE: 02/27/04 ,

HED NU_ :: a1 REVIEWER: BARKS /CliASE/SHANhLE TRACKINb ISfATUS: SCHEDULE P!!,uL DATA SOURCE: BWR OWNERS GROUP s CHECKLIST NO.: AS.2 CHECKLIST AREA: PANEL LAYC/Ji AND DESIGN; r

PANEL / WORKSTATION NO. P863-71

( 1.) 1HVR-AOD125 COMPONENT DESERIPTION tST FOUND '

( 2.) liiVR-AOD 126

( 3.) 1HVR-AOD147

( 4.) 1 HVR- A']D 118 PANEL / WORKSTATION NO. PC63 -72

( 1.) 1HVR-AOD14G PANEL / WORKSTATION NO. PC63-73

( 1.) 1HVR '0D143 4 9

DESCRIPTION OF DISCREPANCY; THE LISTED VALVES NEED WARNING LADELS DUE TO THE POSSIBILITY OF INADVERFENT OPERATION VIOLATINO CONTAINMENT INTEGRITY c

RECOMMENDATIONS:

ADD WAPNING LADELS.

s  : < THE 4 VALVES LIUTED ABOVE .'e o AN ALARM /HNNUNCIATOR ASSOCIATED WITH THEM. IF ANY OF THESE VALVES art INAuvERTENTL / CPERATED, THE OPERATCR WILL OET AN IMMEDIATE ALARM , NOTIFYINO 7HE O!' ERA ~iOR THAT l'ROMPT CORREC~ LIVE ACTION IS REQUIRED >>;

ACTION:

APPROVED BY GSU T1ANAGEMENI.

ELDER 8 ISSUE DATE / /

FDDR# ISSUE DATE / ,/

CRITICALITY RATING: 1 IMPLEMENTATION SCHEDutE:

f

HUMAN ENGINEERING DISCREPANCY RECORD RIVER DEND NUCL EAR P L_ A N T DATE: 04/24/04 I-I E D NO  :: 775 REVIEWER: SPDS TRACKING STATUS: SCHEDULE PHASE DATA SOURCE: OTHER CHECKLIST NO.:

PANEL / WORKSTATION NO. SPDS

( 1.)

DESCRIPTION OF DISCREPANCY:

THERE IS NO DIRECT READOUT OF CST WATER LEVEL EXCEPT THROUGli USE OF THE SPDS AND CRT DISPLAYS RECOMMENDATIONS:

THIS REG. GUIDE 1.97 CATEGORY 3 PARAMETER MAY BE PROCESSED ON DEMAND FOR DISPL.AY AND IS NOT REQUIRED TO DE SEISMICALLY QUALIFIED. THEREFORE, THE PRESENT DESIGN OF DISPLAYING THIS PARAMETER THROUGH THE PROCESS COMPUTER AND SPDS DATABASE IS ADEQUATE.

NO FURTHER ACTION REQUIRED. <<< CONTROL ROOM HAS A LOW AND HIGH ALARM FOR CST LEVEL WilICH CORRESPONDS TO STEPS IN THE EOPs. THESE ALARMS COME IN ON THE HPCS AND RCIC INCERTS AND ALSO INITIATE AN AUTO TRANSFER OF SUCTION PATHS FROM CST TO SUPPRESSION POOL. THE RBS EOPs DO NOT RELY ON A DIRECT READOUT OF CST LEVEL >>>

ACTION:

APPROVED DY GBU MANAGEMENT.

,s E&DCR4 ISSUE DATE / /

FDDRM ISSUE DATE / /

CRITICALITY RATINO: I IMPLEMENTATION SCHEDULE:

l-tU M A N ENGINEERING DISCREPANCY RECORD RIVER BEND NUCLEAR PLANT HED NO = "547 DA1E: 02/23/84 REVIEWER: SPDS TRACRING STATUS: SCHEDULE PHASE DATA SOURCE: OTHER CHECKLIGT NO.: SPDS CHECKLIST AREA: CHECKLIST AREA NOT FOUND PANEL / WORKSTATION NO. SPDS DESCRIPTION OF DISCREPANCY:

SLCS TANK LEVEL DOES NOT MEET THE EQUIPMENT QUALIFICATION OUIDELINES SET FORTH DY R. G. 1. 9 ~7 , REVISION 3.

RECOMMENDATIONS:

THE SLCS IS NOT REQUIRED TO PROVIDE A SAFETY FUNCTION DURING ANY POSTULATED PIPE BREAK EVENTS. THE SLCS TANK LEVEL INSTRUMENTATION IS CONTAINED IN ENVIRONMENTAL ZONE CT-4, WHICH llAS A MILD ENVIRONMENT DURING NONACCIDENT CONDITIONS.

WHILE THIS SYSTEM IS SAFETY-RELATED,IT IS CONSIDERED LESS IMPORTANT TO SAFETY THAN THE REACTOR PROTECTION SYSTEM. THEREFORE, THE REGULATORY OUIDE CATEGORY 2 REQUIRE. IS NOT CONSIDERED APPROPRIATE, AND CATEGORY 3 INSTRUMENTATION IS USED.

<<<THE SUDJECT INSTRUMENT LOOP IS QUALIFIED IN ACCORDANCE WITH 10CFR50.62 AND MEETS CAT 2 REQUIREMENTS. Tile SLCS TANK LEVEL METER IS APPROPRIATELY LOCATED "

WITH THE SLCS SYSTEM ON DENCHBOARD P601 IN T HE MAIN CONTROL ROOM (SEE ACTION DELOW )

ACTION:

APPROVED DY OSU MANAGEMENT. NO FURTitER ACTION REQUIRED. '<< THIS HED IS NOT A DCRDR DISCREPANCY > > .3 ELDCR4 ISSUE DATE / /

FDDR# ISSUE DATE / /

CRITICALITY RATING: 1 IMPLEMENTATION SCHEDULE:

I4UMAN ENGINEERING DISCREPANCY RECORD RIVER BEND NUCLEAR PLANT DATE: 02/23/04 1-t E D NO = 551 REVIEWER: SPDS TRACKING STATUS: SCHEDULE PHASE DATA SOURCE: OTHER CHECKLIST NO.: SPDS CHECKLIST AREA: CHECKLIST AREA NOT FOUND PANEL / WORKSTATION NO. SPDS DESCRIPTION OF DISCREPANCY:

DRYWELL DRAIN SUMP WATEFs LEVEL IS NOT CATEGORY 1 PER RG 1.97.

RECOMMENDATIONS:

NO ACTION. TECHNICAL JUSTIFICATION ON P.35 & 36 OF REFERENCE "K" IN SUl1 NARY REPORT.

<<<DRYWELL DRAIN SUMP WATER LEVEL IS NOT USED IN THE EXECUTION OF THE RBS EOPs. THE DRYWELL SUMPS WILL PROVIDE A LAGOING VERSUS AN EARLY INDICATION OF A LEAK >>>

ACTION:

APPROVED DY OSU MI,NAGEMENT.

E&DCR14 ISSUE DATE / /

FDDRh ISGUE DATE / /

CRITICALITY RATINO: 1 IMPLEMENTATION SCHEDULE:

l i

l I

HUMAN ENGINEERING DISCREPANCY RECORD RIVER BEND NUCLEAR PLANT L

DATE: 02/23/84 HED NO_ = G54 REVIEWER: SPDS TRACKING STATUS: SCHEDULE PHASE l

DATA SOURCE: OTHER CllECKLIST NO.: SPDS CHECKLIST AREA: CHECKLIST AREA NOT FOUND PANEL / WORKSTATION NO. SPDS DESCRIPTION OF DISCREPANCY:

THE DESIGN OF RDS DOES NOT PROVIDE FOR MAIN cot 4 TROL ROOM INSTRUMENTATION WHICH COVERS THE RANGE REQUIRED FOR THE CONTAINMENT WATER LEVEL.

RECOMMENDATIONS:

INVESTIGATE THE EXPANSION OF RANGE ON CONTAINMENT WATER LEVEL INDICATIONO IN CONTROL ROOM

<<<THE MAXIMUM CONTAINMENT WATER LEVEL IS GIVEN IN EOP 2 FIGURE C. USING THIS GRAPil AND ONE OF SEVEN INSTRUMENTS REFERRED TO IN THE EOP, WATER LEVEL IS DIRECTLY DETERt1INED. THE OPERATOR HAS SUFFICIENT TIME TO MONITOR T11E INSTRUMENTATION IN THE MAIN CONTROL ROi:M AND AT LOCAL PANELS TO PERFORM lHE ADOVE REFERENCED EOP./>>

ACTION:

ilO AClION. iECHNICAL JUSTIFICATION ON l'. 40 OF REFERENCE "K" IN SUt1 MARY REPORT.

ELDCR4 ISSUE DATE / /

FDDRM ISSUE DATE / /

CRITICALITY RATINO: I IMPLEMENTATION SCHEDULE:

HUMAN ENGINEERING DISCREPANCY RECORD RIVER BEND NUCLEAR PLANT DATE: 02/23/84 l-l E D NO  :: 509 REVIEWER: UURGY/ CHASE TRACKING STATUS: SCHEDULE PilASE DATA SOURCE: LWR OWNERS OROUP CHECKLIST NO.: A4.2

' CHECKLIST AREA: PANEL LAYOUT AND DESIGN PANEL /WORKGTATION NO. GENERIC

( I.)

DESCRIPTION OF DISCREPANCY:

SELECTED USE OF COLORS IS NOT CONSISFENTLY APPLIED FOR ALARt1 PRIORITIZATION (ALARM COLORS LACK RECOGNIZADLE STANDARD).

RECOMMENDATIONS:

A COLOR PRIORITIZATION CONVENTION WILL DE DEVELOPED AND CONSISTENTLY APPLIED TO THE RDS CONTROL ROOM PANELS.

THE CONVENTION IS: RED [1EANS ADNORMAL, ACTUATION OF Et1ERGENCY SAFETY FEATURE, TRIP OF ANY COMPONENT. AMBER MEANS ALERT TO POTENTIAL ABNORMAL CONDITION.

WHITE MEANS INFORMATION ONLY. IT IS EXPECTED THAT, ON THE AVERAGE,

.APPROXIMATELY 2 ANNUNCIATORS PER SYSTEM WILL DE RED. RED ANNUNCIATORS ARE ESTIMATED TO DE APPROXIMATELY 10"/. OF THE TOTAL NUMDER OF ANNUNCIATORS.

ACTION:

APPROVED DY GOU MANAGEMENT E&DCRM ISSUE DATE / /

FDDRH ISSUE DATE / /

CRITICALITY RATINO: 2 IMPLEMENTATION SCilEDULE: PRIOR TO EXCEEDINO G7.I'OWER

l HUMAN ENGINEERING DISCREPANCY RECORD RIVER BEND N U C L_ E A R P L. A N T DATE: 02/29/84 HED NO- :: 11 REVIEWER: BARKS / BISHOP TRACKING OTATUS: OCitEDULE FilASE DATA SOURCE: DWR OWNERS GROUP CHECKLIST NO.: A4.2 CHECKLICT AREA: PANEL LAYOUT AND DESIGN PANEL / WORKSTATION NO. IRSS-PNL101

( 1.) 15WPMP2A GERVICE WATER PUMP 2A DESCRIPTION OF DIGCREPANCY:

THE START /GTOP SWITCll LADELS FOR THE SWP'O ARE RED AND DLACK RECOMMENDATIONS:

CllANGE LADELG TO HAVE DLACK DACKGROUND

< /a TliE LABELG ON TilIG FANEL ARE PREGENTLY ENGRAVED PLA3 TIC WITil EITilER DLUE OR RED DACKGROUNDS (10 INDICATE DIVISION). ALL LADELO ON TilIG PANEL WILL BE CHANGED TO DE CONOISTENT WIfil THE MAIN CONTROL ROOM. THE MAIN CONTROL ROOM USES ANODIZED ALUMINUM LADELL WITH A ELACK DACKGROUND AND PHOTO--ETCHED SILVER LETTERS. Tile LETTERD ON THESE LADELG ARE NOF ENGRAVED SO THERE IS NO PRODLEM WCTH DIRT OD5 CURING fHE LEfTERS. -

ACfIGN:

APPROVED DY CSU MANAGEMENT ELDCRM IGSUE DATE / /

FDDR4 IGSUE DATE / /

CRIT [CALITY RATINO: 2 IMPLEMENTAIION GChEDULE: PRIOR TO EXCEEDING 5% POWER

HUMAN ENGINEERING DISCREPANCY RECORD RIVER BEND NUCLEAR PLANT

' DATE: 02/27/84' HED ~ NO  :: 319  !

REVIEWER: SCHROEDER/MATSON/DISHOP TRACKING STATUS: SCHEDULE PHACE DATA SOURCE: DWR OWNERS-GROUP CHECKLIST NO.: A3.7 CHECKLIST AREA: PANEL LAYOUT AND DESIGN PANEL /WORKGTATION NO. PO63-76

____________________________________________ __________________________ =_

DESCRIPTION OF DISCRCPANCY:

THE <<< TURBINE DUILDING>>> CHILLED WATER CONTROLS SHOULD DE LOCATED CLOSER TO THEIR RELATED H&V CONTROLS AT P863-71C.

RECOMMENDATIONS:

CHILLED WATER CONTROLS ARE APPROPRIATELY GROUPED. OPERATOR TRAINING WILL FAMILIARIZE THEM WITH LOCATION OF CONTROLS.

<<<THE CHILLED WATER CONTROLS AND DISPLAYG.ARE GROUPED BY SYSTEM IN ONE

' AREA (INSERT 76) AND THE HVAC CONTROL 3 AND DIGPLAYS ARE LOCATED IN ANOTHER(INSERT 71).THE DISTANCE DETWEEN THESE TWO AREAG'IG 18 FECT.THE LADELINO.AND MIMIC WILL DE IMPROVED TO SHOW THE RELATIONSHIP BETWEEN THESE TWO GROUPS OF CONTROLS.<THIS WILL PROVIDE AN ADEQUATE ARRANDEMENT FOR OPERATION OF THE TURDINE DUILDINO HVAC SYSTEM >>>

ACTION:

APPROVED.DY OSU MANAGEMENT.

E&DCRW ISSUE DATE / /

FDDRM ISSUE DATE / /

l CRITICALITY RATINO: 2 IMPLEMENTATION SCHEDULE: PRIOR TO EXCEEDING 5% POWER

7-j HUMAN ENGINEERING DISCREPANCY RECORD RIVER BEND NUCLEAR PLANT i i

DATE: 02/24/04 HED NO 2 2 .2 REVIEWER: LIDDLE /MATSON/ BISHOP TRACl:.ING STATUS: OCHEDULE PHAGE DATA SOUHCE: DWR OWNERS GROUP CHECKLIST NO.: A3.2 CHECKLIST AREA: PANEL LA' ROUT AND DESIGN PANEL / WORKSTATION NO. PGOG-83C

( 1.)

DESCRIPTION OF DISCREPANCY:

CONTAINMENT SAMPLE, URYWELL SAMPLE, H2 MOISTURE ANALYZER CONTROLS ARE NOT IN ALPilADETICAL TOP TO BOTTOM ORDER RECOMMENDATIONS:

REARRANDEMENT OF OWITCHES WILL NOT It1 PROVE OPERABILITY. GIMULA TOR TRAINING WILL FAMILIARIZE OPERATORG WITH CONTROLS.

<<<. Tile CONTROLS ARE ARRANGED TOP TO DOTTOM IN THE CAME ORDER THAT THEY ARE ARRANGED IN THE CON TAINMENT. THIS IS THE DESIRED ARRANGEMENT. THERE ARE TWO CONTROLS TilAT ARG NOT ARRANOED LIKE THE PLANT AND TilEY ARE BEING MOVED PER ELDCR 60,073 D?

ACTION:

AFFROVED BY GSU MANAGEMENT.

ELDCRM ISSUE DATE / /

FDDRn ISGUE DATE / /

CRITICALITY RATING: 2 IMPLEMENTAI1ON SCHEDULE: PRIOR TO FUEL LOAD

HUMAN ENGINEERING DISCREPANCY RECORD RIVER BEND NUCL EAR P L_ A N T DATE: 060905 I-l E D NO = G79 REVIEWER: CilASE TRACKING STATUS: OCllEDULE PHASE DATA SOURCE: NONE CHECKLIST NO.:

PANEL / WORKSTATION NO. GENERIC

( 1.)

C DEGCRIPTION OF DISCREPANCY:

THE DACKGROUND NOISE LEVELS IN lilE MAIN CONTROL ROOM SHOULD BE MEAGURED DURINO NORMAL OPERATIGN.

RECOMMENDATIONS:

TAKE NOISE LEVEL READINGS DURING NORMAL CPERATION IN THE MAIN CONIROL ROOM TO CONFIRM PRE-OPERATIONAL MEASURED BACKOROUND NOISE LEVELS.

ACTION:

EbDCR# IGGUE DATE / /

FDDR4 IG30E DATE / /

CRITICALITY RATING:

IMPLEMENTAl' ION SCHEDULE: 1st REFUELING OUTAGE

RBS MAIN CONTROL ROOM

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