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Package Consisting of Plant Lighting Sys Evaluation, Summation of Sys Engineer Walkdown Unit One & Emergency Lighting Action Plan
	ML20114D964
Person / Time
Site:	Palo Verde
Issue date:	02/25/1990
From:	; ARIZONA PUBLIC SERVICE CO. (FORMERLY ARIZONA NUCLEAR
To:	;
Shared Package
ML20114D960	List: ML20114D964;
References
	FOIA-91-349 NUDOCS 9209100226
	Download: ML20114D964 (44)
	v • d • e

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PVNGS LIGHTING SYSTEM EVALUATION INTRODUCTION _

The normal lighting system provides approximately 90 percent of the illumination throughout the pc; _ r block of each unit and is fed from Non-Class IE power sources.

The essential lighting system supplements normal lighting, and provides each unit with upproximately 10 percent of normal operating illumination throughout the power block in the event of a failure of the normal lighting system. Power for the essential lighting systern is provided by diesel backed Class 1E power that is isolated in the event of a SIAS actuation.

The 8 hour9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months emergency lighting system provides reliable battery powered lighting for all safe shutdown areas, routes to those areas trom the control room, and for access and egress along

<mergency exit routes for the power block. Emergency illumination is provided in all plant areas to back up the essential lighting. _

The power blo:k emergency lighting is energized automatically upon the loss of essentiallighting.

In the control room suspendeo ceiling area, a specific number of the fluorescent fi.xtures of the essential lighting system provide emergency lighting. Integral battery powered units, each with two incandescent lamps, provide emergency lighting in all other areas. The batteries are sized for 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months of operation in areas needed for the operation of safe shutdown equipment and in access i and egress routes thereto, Emergency lighting for personnel egress from other plant areas is provided by 11/2 hour (minimum) battery units. Power for emergency lights in the horseshoe portion of the control room and in the panel area is supplied by a seismically qualified emergency power unit containing an inverter, battery, charger, and output transfer switch to transfer from essential oower source to the inverter output. The emergency power unit feeds one fluorescent lamp, each, in selected fixtures in the ceiling lighting system and in the panel area.

The integral emergency lighting units are Dual Lite No. AS110-2 C-SST-277V or 120V with EXT-P5SB 6 volt lamps, nickel cadmium battere; Dual Lite Nema 4 x 7 with scaled 6-volt storage battery, charger, and automatic solid-state transfer delay, and Emergi-Lite 6 volt with two 9v heads,

Some fluore' scent fixtures in the control building ac switchgear room, de equipment area, auxiliary -

building channel A and B penetration rooms, and the remote shutdown panel area are fed from four UPS (E-QBN-001, -002, 003, and 004) as shown on drawings 13 E ZAL-004, -005 and 13-E-ZJL-002.

INITIATING EVENT During the Unit 3 trip on March 3,1959, inadequate lighting hampered the operator's ability to manually open the ADVs. The ADVs are located or. the 120' elevation of the MSSS Bldg but the handwheels required to manually operate the ADVs are loca*ed on the 140' elevation of the MSSS

' Bldg. The lighting system in each room of the 140' MSSS B:dg. consisted of two 500 watt incandescent lamps fed from the normal lighting system, one 500 watt incandescent lam fed from the essential lighting system and two Dual Lite self contained battery pack emergency li hting units rated for 1-1/2 hours of operation. The status of the lighting system at the time w en the operattIr tried to manually operate the ADVs was the normal lighting was inoperable due to the loss of the Non-Class 1E power source, the essentiallights were oft due to SIAS actuation isointion, and the emergency light in both rooms provides only access and egress from the rooms.

the essential light in the south room had a burned When out bulb leaving that room in total darkness an the essential light in the north was very dim and the essentiallighting system was restore,d would not have helped the operator in the manual operation of the ADYs. The emergency lights

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PROBLEMS FSAR INTERPRETATION-FSAR Section 9B requires 8 hour9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months emergency lighting to manually operate ADV's. This lighting

.was instaded at the 120' elevation of the MSSS Bldg. and illuminated the valve itself. The ADV manual operators (bandwheels) are located at the 140' elevation of the MSSS Bldg. The only emergency lights at the 140' level are two 11/2 personnel safety access and egress lights.

EED Electrical felt that the intent of the FSAR was to manually control the ADYs from the handwheels at the 140' elevation of the MSSS Bldg. After the March 3rd event, several discussions were held with NED, EED and Licensing. As a result of these discussion, NED and Licensing felt that these lights were only an enhancement and not required to be Appendix 'R' lights, but agreed to make them 8 hour9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months rated lights. EED and Management still had concerns on the interpretation of the FSAR. This resulted in DCP 1,2,3FE-QD 022 being issued to upgrade

.140' elevation emergency lighting to 8 hour9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months rated emergency lights and mcet specific criten,a.

P3Pe/ Maintenance Prior to the March 3rd event, EED had concerns about the reliability of the emergency lighting in the MSSS Bldg. PCR's 8713-QD 004 and 87-13-QD-007 were generated to upgrade the emergency lighting. Both PCR's were cancelled in March of 1988 by NED. EED Electrical and the Electrical Standard Group developed new preventive maintenance tasks to relamp all incandescent lamps by groups with the correct long life bulbs. These tasks were written in late 1988 and were not performed in the MSSS Blcg. but were scheduled for the upcoming refueling outage. EED feels that.if these tasks would have been com essential lighting to operate the ADVs pleted prior to the event, there would have been ad Prior to the event, the 11/2 hour rated emergency lighting PM tasks were waived 5 consecutive times. Emergency lighting would have been more reliable if these PM's had been completed.

(Some questions to whether the emergency lights worked during the event have never been answered.)

.EED's EVALUATION OF CORRECTIVE ACTIONS TAKEN 1, 2, 3FE-QD 022 was generated by NED as an enhancement to resolve the lighting issues in the MSSS Bldg. and to provide access and egress to that area. Prior to the issuance of this DCP, EED Electrica] generated PCR 8913-QD 001, approved by PMC on 3/15/89, to install emergency lights in' the MSSS powered by an UPS in a location outside of the MSSS Bldg. Decisions were made to instaE self mrtained battery pack emergency lights (Emergi-Lite) because of aarts lead time and the Unit me t schedule, EED had many concerns about the qua'ity and reliability of the Emergi Lite its. EED considered these units to be of poor quality and unsuitable for the application. - EED also question the reliability uruts. This 'was discussed in great detail with, NEMA rating Management, and and the temperature System Engmeerrat,ing was of these roduct. Exide battery pack lighting used by SONGS was

-directed found available to pursue a higher and seemed to bequality o [better quality but NMD determined that these lights r be able to handle summertime temperatures at PVNGS. EED again asked NED to pursue the external UPS design. Several letters were written to express EED's reluctance to install Emergi Lite units. A decision was made to instaU Emer fix and pursue the UPS design for Units One and Three.gi Litewas This decision units in Unitto Two changed installas a temp

- Emergi-Lite in all three Units but the UPS was to be instaDed prior to summer to keep from having problems from high ambient temperatures. This decision was changed because of economic consideration by the PMC and scheduled for 1991. The Emergi Lite units were installed in all three Units and successfully passed their 8 hour9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months burn test after experiencing a very high failure rate. EED Electrical believec, parts could have been obtained to install the external UPS design

? prior to restart of Units 1 and 3. EED also expressed concerns that QD-022 lights were shown in Safe Shutdown procedure and on Safe Shutdown drawings but were considerec enhancements. As a result of the event, EED Electrical and Operations conducted walkdowns of each Unit utilizing

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J.i ,. aaAa m ,d -- sa_,-r- & _e,i m A.e. - - - . e.- 4 _ 4 4 - - - - --m . -- - ed+'"'4-i Procedure 4XAO X2Z44 (Shutdown Outside Control Room Due to Fire and/or Smoke),4XOP- l XDG02 (Emergency Diesel Generator 'B') and Safe Shutdown drawings 13 E ZPle003 Reve 4 13 E-

ZPL-002 Rev. 5, and 13 E ZPL-003 Rev. 4. Final Reports of these walkdowns were issued to NED after meetings with Operation Standards, EED and Management. The results of these walkdowns showed several areas requhing upgraded or additional emergency lighting to meet the Appendix 'R' requirements and procedure intent. (Rcf. LER 89 019). The walkdowns resulted in the issuance of DCP 1,2,3FE-QD 023. Some areas considered EED and Operation Standards required Safe Shutdown lights, NED considered enhancements. (Letter #167-04502-SLK/EC Sept. 20, 1989).

EED still had concerns that all the total Appendix 'R' Safe Shutdown path lighting may not be adequately addressed. Thus S Mod 1,2,3SM-QD-007 was generated to be done aner restart as an ,

enhancement.

- Although DCPs QD 022 and OD 023 were designed and installed in the Units prior to restart, Electrical Standards was unhole to generate PM tasks due to a SDIS database procedural problems. ICR 06478 against procedure 81AC OCC05 was written by EED on March 27,1989 with the intention to resolve this issue. Several EERs were also written to address these concerns.

This problem}lights the additiona however, installed never by DCP beenQD resolved; 022 andandQD-023,therefore due to nolack PMs of were location being generated codes in SDIS. to cov Several meetings with EED and Electrical Standards were held to determine how to implement location codes into the SIMS database. Also Hot Line was appraised of this concern and the Quality Department was asked to generate a CAR. Electrical Standards has walkdown all locations and is in the process of completing the PMs.

-RECOMMENDATIONS LIC/NED Determine requirements of Appendix 'R' Safe Shutdown and FSAR lighting.

LIC Initiate FSAR change to clarify MSSS AD\ lighting, egress and access routes.

NED - Initiate / change Safe Shutdown drawings to reDeet actual Safe Shutdown pad 2 and light locations.

OPS STD/NED Revise Safe Shutdown procedures to be in agreement with NED final determination of Appendix 'R' Safe Shutdown equipment.

NED Generate Design Change to identify Safe Shutdown route in Units. PCR 8913 ZZ-003 initiated by EED.

NED - Issue drawings to show equipment illuminated by Appendix 'R' Safe Shutdown lighting.

NED/EED Install external UPS DCP prior to summer of 1990.

NED/ OPS STD/EED Determine actual Appendix 'R' Safe Shutdown requirements and update all procedures and implement design changes if required.

NED Modify Sitemod QD-007 to include areas that were c:nitted.

MAlh"I'/EED/ABRM Install Sitemod QD-007 prior to restart Units 1 and 2 and as soon as possible in Unit 3.

NED- Change Procedure 81AC-OCC05 to allow location codes of new equipment to

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Review old DCPs that are being worked which adds new equipment to ensure all equipment is added to SBIS database.

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.EED Walkdown and renerate a monthly State of System report to upper management redecting the condition of all Appendix 'R' Safe Shutdown lighting not in high radiation areas.

Management Create a prcgram that will allow System Engineers to get priority work done on critica. eqmpment in a timely manner.

Maint Ensure emergency lighting receives priority maintenance and feedback to be given to System 2ngmeers.

NED Res 1ve concerns addressed in EED lighting report the.t all Auxiliary Bldg.

essential lighting is fed from Train A bus.

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SUMMATION OF SYSTEM ENGINEER'S WALKDOWN UNIT ONE EQUIPMENT NUMBER STATUS COMMENTS r -

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1E-STL 74C 09100-01 LIGH'IS OK PC BOARD WARPED 1E-STL 740 09100-02 LIOHTS OK PC BOARD WARPED BAD 1E-stb 74C-09100-03 LIGHTS OK PC BOARD WARPEP BAD 1E-STL 740 09-100-04 LIGHTS OK PC BOARD WARPED BAD 1E STL-74C 09100 05 LIGHTS OK PC BOARD WARPED BAD 1E-STL 740-09100-06 LIGHTS OK PC BOARD WARPED 1E-STL 74C 09110 07 LIGHTS OK IE-STL-74C 09-130-08 LIGHTS OK -

1E STL-74C 09140-09 LIGHTS OK 1E-SCL-72A 14-140-15 PC BOARD LITTLE WARPED 1E-SCL-72A 14-14016 PC BOARD LITPLE WARPED 1E SCL-72A 14140-17 PC BOARD WARPED REAL BAD 1E SCL-72A-14-140-18 PC BOARD LITTLE WARPED 1E SCL-72A-1411019 PC BOARD LITTLE WARPED 1E-SCL-72A-14-140-20 PC BOARD LITTLE WARPED -

1EQBN0004 BATTERY #2A FAILED TO MEET ACCEPTANCE CRITERIA AFTER 1/2 HR OPEN CIRCUIT.

WO 391762 WRITTEN TO FLX. _

1EQBN0001 BATTERY FAILED ACCEPTANCE CRITERIA.

WR 389835 WRITTEN TO FLX.

1EQBN0002 POST ON BATTERY #3A WAS CRACKED AND FLATTEN OUT. WO 348770 WRITTEN TO FLX.

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l SUMMATION OF SYSTEM ENGINEER'S WALKDOWN UNIT TWO EQUIPMENT NUMBER STATUS COMMENTS 2E-STL 740 09100 01 LIGHTS OK PC BOARDkVARPED 2E STL-74C 09100 02 LIGHTS OK PC BOARD WAP. PED BAD 2E STL 740 09100 03 LIGHTS OK PC BOARD WARPED BAD 2E-STL-74C-09-100-04 LIGHTS OK PC BOARD WARPED BAD 2E-STL-74C-09100-05 UGHTS OK PC BOARD WARPED 2E-STL-740 09-090-06 UGHTS OK PC BOARD WARPED 2E STL 74C-09110-07 UGHTS OK PC BOARD WARPED 2E-STL-74C-09-130 08 LIGHTS OK PC BOARD WARPED 2E-STL-74C-09140 09 LIGHTS OK PC BOARD WARPED 2E SCL-72A 14-14015 g LIGHT FAILED 8 HR BURN TEST.

WO 411517 WRITTEN TO FIX.

PC BOARD WARPED, EER 90-QD 003 2E-SCL-72A 14-140-16 LIGHT HAS CONTLNUOUS HI-CHARGE INDICATION. WO 408933 WRITTEN TO FIX. PC BOARD WARPED, EER 90-QD-003.

2E-St o-72A-14-140-17 LIGHT HAS CONTINUOUS HI-CHARGE INDICATION. WO 40S937 WRITTEN TO FLX. PC BOARD WARPED, EER 90-QD-003.

2E-SCL-72A-14-140-18 PC BOARD WARPED

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2E SCL-72A 14-140-19 t LIGHT FAILED 8 HR BURN TEST.

WO 411551 WRITTEN TO FIX. PC d BOARD WARPED BAD, EER 90-QD-003.

2E-SCL-72A-14-140-20 i LIGHT FAILED 8 HR BURN TEST.

WO 411549 WRITI'EN TO FIX.

" PC BOARD WARPED, EER 90-QD 003. ,e s

2E SJL-D79-04-030-08 LIGHTS OK

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UNIT READY AND HI-CHARGE LIGHT ON. WR 543555 WRITTEN TO FLX.

2E-QBN-0002 BATT #2B FAILED MIN. VOLT ACC.

CRITERIA. WO 410186 WRITI'EN TO FIX. UPS IS READING 30% LOAD.

WR 346029 WRI'ITEN TO FIX.

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, SUMMATION OF SYSTEM ENGINEER'S WALKDOWN UNIT TIIREE EQUIPMENT NUMBER STATUS COh X- . s .3. . <, .-l.%yp w nDfENTS e v. .< . ..

3E STI 740-09100-01 LIGHTS 0.'s PC BOARD WARPED 3E-STL-74C 09100 02 LIGHTS OK PC BOARD WARPED s 3E STI-74C 09100 03 LIGHTS OK PC BOARD WAIU'ED 3E STI-74C 09100 04 LIGHTS OK PC BOARD WARPED BAD 3E STL 74C 09100 05 LIGHTS OK PC BOARD WARPED 3E STI-74C 09-090 06 LIGH1B OK 3E STI-740 09110 07 IJGHTS OK PC BOARD WARPED 3E STI "40-09130-08 LIGHTS OK PC BOARD WARPED _

3E STle74C 09140 09 LIGHTS OK PC BOARD WARPED 3E-SCL 72A 1414015 PC BOARD LITTLE WARPED 3E SCL 72A 1414016 TC BOARD LITTLE WARPED 3E-SCL-72A 14-14017 PC BOARD LITTLE WARPED 3E SCL 72A 1414&l8 PC BOARD LITTLE WARPED 3E SCL 72A 1414019 PC BOARD LITTLE WARPED 3E SCL-72A 14140 20 PC BOARD LITTLE WARPED 3EQBN002 G LAMP OUT PMWO 402054 ALSO WAS REPORTED ON INVALID MNCR 90-QB 0001 3EQBN002 F C9HT OK FIXTURE SUPPORT BROKEN _

3E SGI-D79 05100 02 LIGHT OK POSSIBLE CHARGING CARD PROBLEM WR 543554 WR17 TEN BY SE 3E-SJL-D79 0410010 LIGHT OK POSSIBLE CHARGING CARD PROB! EM WR 543554 WRITTEN BY Sr 3E SAL 72D-03-120 20 LIGHT OK OVE'. SPRAYED WITH GRAY PAINT 3E SAL-72C-03100 03 LIGHT OOS WR 36S605 CANCELLED BY WO 404114 ST: ZAL 72C-03100 05 LIGHT OK TO BE UPGRADED BY 3SM-QD-007 TO A SAFESH'UTDOWN LGT. WO 407506 WRI'ITEN TO IMPLEMENT SITEMOD.

SITEMOD IS NOT ISSUED YET,

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FROM: LINDA MITCHELL DURING MY SbTEM ENGINEER WALKDOWN IN UNIT 3, ON SATURDAY FEB. 24,1990 . I FOUND THAT THE SAFE SHUTDOWN LIGHT 3EQBN002 G IN CONTROL BUILDING 100' ELEVATION HAD NOT BEEN REPAIRED YET.

THIS LIGHT WAS A UNIT RESTART ITEM INSTALLED UNDER DCP 3FE-QD 023 AND HAS NOT BEEN OPERATING SINCE 0105 90. THIS CONDITION WAS REPORTED ON MNCR 90-QB-0001. BUT MNCR WAS INVALIDATED ON 02 16 90.

THE NRC REGION INSPECTION TEAM WAS TOLD THAT SAFE SHUTDOWN IJOHT 3EQBN002 0 WAS BEING REPAlRED nN 02 15 90. ALTHOUGH PM :

. WOu 00402054 HAS BEEN GENERATED TO R1 ?'IR THIS :lGHT, IT HAS NOT BEEN FIXED TO DATE. ALSO THE OTHEn SAFE SHUTDOWN LIGHT IN THAT AREA. 3EQBN002 F, HAS COME UNBOLTED FROM UNISTRUT. THIS CONDITION HAS ALSO EXISTED SINCE 12 24 89.(REF WO# 00405087) 1 FIND THESE REPAIRS TO DE UNTIMELY.

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- SUADIATION OF S EM ENGINEI I S WY ~ I OWN UNIT ONE I

, '5 QUIP 31ENT NUMDER STATUS COM31ENTS !

1E stb 740 09100 01 LIGHTS OK PC BOARD WARPED 1E STI-74C 09100-02 LIGHTS OK PC BOARD WARPED BAD 1E STL 74C 09100-03 IJGHTS OK PC BOARD WARPED BAD 1E-stb 74C 09100 04 IJGHTS OK PC BOARD WARPED BAD 1E-stb 74C 09100 05 LIGHTS OK PC BOARD WARPED BAD 1E STI 74C-09100 00 LIGHTS OK PC BOARD WARPED 1E stb 74C 09110 07 , LIGHTS OK IE STI-74C 09130 08 LIGHTS OK IE-STL-740 09140 09 LIGHTS OK 1E SCL 72A 1414015 PC BOARD Ll'IT11 WARPED 1E SCL 72A 1414016 PC BOARD Ll'ITLE WARPED 1E-SCL 72A 1414017 PC BOARD WARPED REAL BAD 1E SCL-72A 1414018 PC BOARD Ll'ITLE WARPED 1E-SCL 72A 1414019 PC BOARD LITTLE WARPED 1E SCL 72A 14-140 20 PC BOARD IJTTLE WARPED 1EQBS0004 BATTERY #2A FAILED TO MEET ACCEPTANCE CRITERIA AFTER 1/2 HR OPEN CIRCUIT, WO 391702 WRITI'EN TO FIX.

1EQBN0001 BA'ITERY FAILED ACCEPTANCE CRITERIA.

WR 359835 WRITTEN TO FIX.

IEQBN0002 POST ON BATTERY #3A WAS CRACKED AND FLATTEN OUT. WO 348770 WRITTEN TO FIX.

2/25/90 i

E/* i Entibir~ "t3

jSUMMATION OF S9 TEM ENGINEER'S WN~'(DOWN UNIT TWO

.1;QUIPMENT NUa!BER STATUS COMMENTS 2E-STL74C 09100 01 LIGIITS OK PC BOARD WARPED 2E STL74C 09100 02 LIGHTS OK PC BOARD WARPED BAD .

2E STL 74C 09100 03 IJGHTS OK PC BOARD WARPED BAD t

2E4Tb74C 09100 04 LIGHTS OK PC BOARD WARPED BAD 2E STL 740 09100 05 LIGHTS OK PC BOARD WARPED 2E stb 74C 09 090 06 LIGHTS OK PC BOARD WARPED 2E STL 74C 09110 07 . LIGHTS OK PC BOARD WARPED 2E STL 74C 09130 08 LIGHTS OK PC BOARD WARPED 2E STL 740 04140 09 LIGHTS OK PC BOARD WARPED 2E SCL.72A 1414015 LIGHT FAILED 8 liR BURN TEST.

WO 411517 WRITTEN TO FLX.

PC BOARD WARPED, EER 90-QD 003 2E SCL 72A 1414016 LIGHT HAS CONTINUOUS IU CHARGE INDICATION. WO 408933 WRI'PTEN TO FIX. PC BOARD WARPED, EER 90-QD 003.

2E SCL 72A 1414017 LIGHT HAS CONTINUOUS HI CHARGE INDICATION. WO 40S937 WRITTEN TO FIX. PC BOARD WARPED, EER 90-QD 003.

2E SCL 72A 1414018 PC BOARD WARPED 2E SCL 72A 1414019 LIGHT FAILED 8 HR BURN TEST.

WO 411551 WRITTEN TO FIX. PC BOARD WARPED BAD, EER 90-QD 003.

2E SCL 72A 14140 20 LIGHT FAILED 8 HR BURN TEST.

WO 411549 WRITTEN TO FLX PC BOARD WARPED, EER 90-QD 003.

- 2E SJL D79 04 080 0S LIGHTS OK UNIT READY AND ID CHARGE LIGHT ON. WR 543555 WRITTEN TO FIX.

2E QBN 0002 BATT #2B FAILED MIN. VOLT ACC.

CRITERIA. WO 410186 WRI'PTEN TO FIX. UPS IS READING 30G LUAD.

WR 346029 WRI'PPEN TO FIX.

2/25/90

SIDp1ATION OF SF 7EM ENGINEER'S WAL)OWN UNIT THREE Iif,QUIPMENT NUMBER STATUS COSDIENTS 3E 5 stb 740 09100 01 LIGHTS OK PC BOARD WARPED 3E STL-74C 09100 02 UGHTS OK PC BOARD WARPED 3E stb 74C 09100 03 LIGHTS OK PC BOARD WARPED 3E stb 74C-09100 04 LIGHTS OK PC BOARD WARPED BAD 3E STL 74C 09100 05 LIGHTS OK PC BOARD WARPED 3E STL 74C 09 090 06 LIGHTS OK 3E stb 74C 09110 07 . UGHTS OK PC BOARD WARPED

- 3E STL 74C 09130 08 UGHTS OK PC BOARD WARPED 3E STL-74C 09140 09 LIGHTS OK PC BOARD WARPED 3E SCL 72A 1414015 PC BOARD UMLE WARPED 3E SCL 72A 1414016 PC BOARD UMLE WARPED 3E SCL 72A 1414017 PC BOARD WITLE WARPED 3E SCL<72A 1414018 PC BOARD UMLE WARPED 3E SCL 72A 1414019 PC BOARD UTTLE WARPED 3E SCL 72A 14140 20 PC BOARD UMLE WARPED 3EQBN002 G LAMP OUT PMWO 402054 ALSO WAS REPORTED ON INVALID MNCR 90-QB 0001 3EQBN002 F LIGHT OK FIXTURE SUPPORT BROKEN 3E SGL D79 05100 02 LIGHT OK POSSIBLE CHARGING CARD PROBLEM WR 543554 WRIMEN Bf SE 3E SJL D79 04-10010 LIGHT OK POSSIBLE CHARGING CARD PROBLEM WR 543554 WRIMEN BY SE 3E SAL 72D 03120 20 LIGHT OK OVER SPRAYED %TTH GRAY PAINT 3E SAL 72C 03100 03 LIGHT OOS WR 36S605 CANCELLED BY WO 404114

-3E4.AL 72C 03100 05 UGHT OK TO BE UPGRADED BY 3SM-QD 007 TO A SAFESHUTDOWN LGT. WO 407506 WRIMEN TO IMPLEMENT SITEMOD.

SITEMOD IS NOT ISSUED YET.

2/25/90

~

PVNGS LIGHTING SYSTEM EVALUNPION DWRODUCTION The normal 11chung syv.em provides approximately 90 percent of the illumination throughout the power block of each unit and is fed from Son Claes 1E power sources. -

ne essential lighung system supplements normallighting, and provides each unit with approximate 1v 10 percent of normsl operating iUumination throughout the power block in the event of a fa0ure of the normal lighting system. Power for the essential lighting system is provided by diesel backed Class IE power that is isolated in the svent of a SIAS actuation.

The 8 har emergency l!ghting system provides reliable battery powered lighting for aD safe shutdown areas, routes to those areas from the control room, and for access and egress along emergency exit routes for the power block. Emergency illumination is provided in au plant arcar to back up the essential lighting. .

The power block emergency lighting is enertzed automatically upon the loss of essentia: Ughting.

In the control room suspended ceiling area, a specine number of the Duorescent futures of the essential lighting system provide emergency lignting Integral battery pewered unita, each with two ineandescent lamps, provide emergency lighting in at other areas. The batteries are sized for 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months of operation in areas needed for the operataon of safe shutdown equipment and in access and egress toutes thereto. Emergency Ughting for personnel egress from other plant areas is provided by 114 hour0.00132 days 0.0317 hours 1.884921e-4 weeks 4.3377e-5 months (minimum) battary units. Power for emergency lights in the horseshoe rm ; ion of the control room and in the panel area is supplied by a seismicaEy qualifed emergency po,ver unit containing an inverter, battery, charger, and output transfer switch to transfer from essential power source to the inverter output. The emergency power unit feeds one fluorescent lamp, eacn, in selected Extures in the ceiling lighting system and in the panel area.

The Integral ernergency lighting units are Due] Lite No. AS110 2 C-SST 277V or 120V with EXT-PSSB 6. volt lam battery, charger,ps, nickel cadmium and automatic solid statebattery; transfer Duai delay,Lite andNema Emergi4Ute x 76with sealed volt with 6 voh storage two 9v heads.

.Some duore's:ent fixtures in the control building ac switchgear room, de equi ment area, auxiliary buildinc channel A>nd B penetration rooms, ar.d the remote shutdown panef area are fed from-- '

four UPS (E-QBN%1, -002, 003, and 004) as shown on drawings 13 E ZAL-004, 005 and 13.E.

ZJL-002.

INITIATING _ EVEy[

During the Unit 3 trip on March 3,1989, inadequate lighting hampered the operator's abi'ity to manusBy open the ADVs. The ADVs are located on the 120' e:evation of the MSSS Bldg but the handwheels required to manuaDy operate the ADVs are '.ocated on the 140' elevatha of the MSSS Bldg. The lighting system in each room of the 140' MSSS Bldg. conshted of two 500 satt incandescent lamps fed from the normal li hting system, one 500 vatt incandescer.t lam fed from the essentiailighting system and two DuaILite self contained battery pack emerger.cy U hting units rated for 11/2 hours of operation. The status of the lighting system at the time w en the operator tried to manually operate the ADVa was the normal lighting was inoperable due to the loss of the Non Class 1E power source, the casential lights were off due to SIAS actuation isolation, and the emergency light in both rr., oms provides only access and egress from the rooms.

When the essential lighting system was restore, the essential light in the south room had a ourned out bulb leaving that roou in total darkness and the essential U ht in the north was very dim and would not have helped the operator in the manual operation of tke ADYs. The emergency lights

.were off7ts per design.

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' PROBLEMS FSAR LvrERPRETATION FSAR Section 9B requires 8 hour9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months emergency lighting to manuaDy operate ADVs. This lighting i was installed at the 120' elevation of the MSS 5 Bldg. and iDuminated the valve itself. The ADV !

manual operators (handwheels) are located at the 140' elevation of the MSSS B!dg. The only I emergency Ughts at the 140' level are two 11/2 personnel safety access and cress Ughts. l 3

EED Electrical felt that the intent of the FSAR was to manuaDy control the ADV's fem the I handwheels at the 140' elevation of the MSSS Bldg. Aner the March 3rd event, several l dhmsnions were held with NED, EED and Licensing. As a result of these discussion, NED and

. Licensing felt that these lights were only an enhancement and not required to be Appendh 'R' lights, but apeed to make them 8 heur rated lights. EED and Management still had concerns en the interpretation of the FSAP This resulted in DCP 1 2 3FE-QD-022 being issued to uppade 140' elevation emergency lighting to 8 hour9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months rated emerge,nc,y lights and meet speciSc criteria.

PM's/ Maintenance Prior to the March 3rd event, EED had concerns abvut the reliabitity of the emergency lighting in the MSSS Bldg. PCR's 8713.QD 004 and 8713.QD 007 were generated to upgrade the emergenev Ughting. Both PCF's were canceDed in March of 19$5 by NED. EED Electrical and the Electried 1 Standard Group developed new preventive maintenance tasks to relamp aU incandescent lamps by I groups with the correct long life bulbs. These tasks were written in late 1983 and were not ,

performed in the MSSS B!cg but were scheduled for the upcoming refueling outage. EED feels 1 that if these tasks would have been com essentiallighting to operate the ADV's. pleted prior to the event, there wou]d have been Prior to the event, the 11/2 hour rated emergency li'hting PM tasks were walved 5 consecutive times. Emergency lighting would have been more reIiable if these PM's had been completed.

(Some questions to wnether the en:ergency lights wcrked during the event have never been answered.)

. EED's EVALUATION OF CORRECTIVE ACTIONS TAKEN -

1,2. 3FE QD-022 was generated by NED as an enhancement to resolve the lightir. issues in the MSSS Bldg. and to provide access and epess to that area. Prior to the issuance of this DCP, EED E:ectrica] generated PCR 5913.QD 001, approved by PMC on 315/59. to ins'all emergency lights in the MSSS powered by an UPS in a locat:on outside of the MSSS B dg. Decisions were made to irnall the Unit selfrestart contained batterv schedule. kEDpack had emergency many concerns lights _(Emergi about the quality Ute)and because of[narts re iability of thelead time and Emergi-Lite units. EED considered these units to be of poor quality and unsuitable for the application. EED a'so que> tion the reliability, NEMA rating and temp uruts. Tnis was discussed in peat detail with Management, and theystem s,erature Engineerrating wasof these directed to pursue a higher quality roduct. Exide battery pack lighting used by SONGS was found available and seemed to be o.pLetter quality but NED deermined that these lights ma be able to handle summertime teaperatures at PVNGS. EED again asked NED to pursue the external UPS design. Several letters were written to express EfD's reluctance to install Emergi Lite units, A decision was made to install Ememi Lite units in Unit ?wo as a temporary fix and Emergi Lite pursue in all the UPS three Unitsdesign but thefor UPS Units wasOne to beand ThreJ installed This prior to summer decisiontowas keepchanged frozn to ins

? having proMems from high ambient temperatures. This decision was changed because of economic consideration by the PMG and scheduled for 1991. The Emergi Lite units were installed in all three Units and successfully passed their 8 hour9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months burn test aner experiencing a very high failure

! rate. - EED Electrical believed parts could have been obtained to install the external UPS des:gn L ' prior to reatart of Unita 1 and 3 EED also expressed concerns that QD 022 lights were shown in

! Safe Shutdown procedure and on Safe Shutdown drawings but were considred enhancements. As I a rcault of the event, EED Electrical ud Operations conducted walkdowns of each Unit utilizing l

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' Procedure 4XAO.X2244 (Shutdown Outside Control Room Due to Fire and/or 3moke),4XOP.

XDG02 (Emergency Diesel Generator 'B') and Safe Shutdown drawings 13.E.ZPL 003 Rev. 4.13.E. :

ZPL-002 Rev. 5, and 13 E ZPL 003 Rev. 4. Final Reports of these wamdowns were issued to NED !

aner meetings with Operation Standards, EED, and Management. The results of these walkdowns showed several areas requiring upgraded or additicnal et ergency Ughting to meet f.he Appendh 'R' '

requirements and proceoure intent. (Ref. LER 89 019). The walkdowns resulted in the issuance of DCP 1,2,3FE-QD 023. Some areas considered EED and Operation Standards reqtijred Safe Shutdown lights, NED censidered enhancements. (Letter #167 04502.SLF/EC Sept. 20, 1989).

EED still had concerns that all the total Appendix 'R' Safe Shutdown path lighting may not be adequately addressed. Thus S Mod 1,2,3sM-QD 007 was generated to be done aRet restart as an enhancement.

Althoug52 DCPs QD-022 and QD 023 were designed and installed in the Units prior to restart, Electrical Standards was unable to generate PM taaks due to a SIMS database procedural

- problems. ICR 06476 against prc<edure 81AC OCC05 was written by EED on March 27,1989 with the intention to resolve this issue. Severa) EERs were also written to address these concerns.

This problem}

the additiona however, lights installed never by DCP been QD-022resolved; and therefore and QD-023, due to no lackPMs of h>were being cation generated codes in SIMS. to co Severa] meetings with EED and Electrical Standards were held to determine how to imp!ement location codes into the SIMS database. Also Hot Line was aoprnised of this concern and the Quality Department was asked to generate a CAR. Electricaf Standards has walkdown all locations and is in the process of completing the PMs.

~

.RECOMAENDATIONS :

LIC/NED Determine requirements of Appendix 'R' Safe Shutdown and FSAR lighting.

LIC Init! ate FSAR change to darify MSS.c ADV lighting, egress and ac:ess routes.

NED Initiate / change Safe Shutdown drawings to ref.e:t actua! Safe Shutdown path and light locations.

~

OPS STD/NED - Revise Safe Shutdewn procedures to be in agree =ent with NED fmal deterndnation of Appendix 'R' Safe Shutd wn equipment.

NED Generate Desigt. Change to identify Sa'e Shutdown route in U12ts. PCR 8913 Z2 003 initiated by EED.

. NED Issue drawings to show equipment illuminated by Appendix 'R' Safe Shutdown lightmg.

NED/EED Install external UPS DCP prior to sulnmer of 1990.

NED/ OPS STD/EED Determine actue] Appendix 'R' Safe Shuthwn requirements and update all procedures and implement design changes if required.

NED Modify Sitemod QD 007 to include areas that were omitted. '

- MAINT/EED/ABRM Install S;temod QD 007 prior to restart Units 1 and 2 and as soon as possible in Unit 3.

NED '

Change Procedure 81AC OCC05 to allow location codes of new equipment to be entered into SIMS database, as part of the normal design modification process.

NED Incorporate outstanding PCRs that require SIMS database updates. .

'NED Review old DCPs that are being worked which adds new equipment to ensure all equipment is adaed to SIMS database.

4

.. , ~ _ _ _ _ __ _

m

.EED Walkdown and generate a month)y State of System report to upper management renecting the cor.dit2on of all Appendix 'R' Safe Shutdown lighting not in high radlation arcas.

Management Create a progratn that will allow System Engineers to get priority work done

- on critical eqidpment in a timely manner.

Maint Ensure emergenev Ughting receivei priority maintenance and feedback to be given to System Engineers.

NED Resolve concerns addressed in EED Ughting report that an Aa.uuarj Bldg.

essential Ughting is fed from Train A bus, hO .

qb81/* !

. 2uA e

1 9

c ,s ,, 3 EMERGENCY LIGHTING -

ACTION PLAN EED ELECTRICAL TO CCORDINATE THE FOLLOWING:

1 WORK CONTROL IN ALL UNITS DEVEL. OPE A SCHEDULE TO DO 8 HOUR

- BURN TEST ON:

ALL EMERGI LIGHTS 10% OF ALL OTHER TYPES (EED TO PROVIDE LIST)

MAINTENANCE IMPLEMENT 8 HOUR BURN TESTS AND FEEDDACK ALL FAILURES TO SYSTEM ENGINEER.

2 all emergi-lights -

3 - 10% of all other types 4 EED ELECTRICAL GENERATE A LIST OF ALL EMERGENCY LIGHTS THAT INCLUDES THE FOLLOWING INFORMATION:

10 CATION OF EACH LIGHT-TYPE OF LIGHT DESIGN OF LIGHT AND DOCUMENT USE TO INSTALL ie. APPENDIX'R' ORIGINAL, APPENDIX 'R' ADDED BY DCP, ETC.

CURRENT STATUS OF EACH LIGHT

-S ELECTRICAL STANDARDS GENERATE QUARTERLY PM TOINSPECT AND ,

BUTTON TEST EACH LIGHT MONTHLY.

g ,

6 NED ELECTRICAL - EXPEDITE DESIGN OF EXTERNAL UPS DCP TO UPGRADE

MSSS UGHTING.

7 - EED ELECTRICAL DETERMINE ROOT CAUSE OF FAILURE OF 3 FAILED EMERGI LIGHTS IN UNIT 11. (90 0D 003) 8 ELECTRICAL STANDARDS ADD STATEMENT TO ALL EMERGENCY LIGHTING PM'S TO "lMMEDIATELY CONTACT ENGINEERING IF ANY FAILURES CCCUR'.

9 EED ELECTRICAL - RESEARCH ALL CORRE.CTIVE ACTIONS THAT HAVE BEEN DONE ON EMERGI LIGHTS, CA' AGORIZE AND DETERMINE WHETHER

_ ACTIONS WERE TAKEN BEFORE OP. AFTER LIGHTS WERE PUT IN SERVICE. ,

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f(4) 2/27/90 2:30 P.M.

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W.'6IC 04C64 7 A9b 2ESCL72AVrIM ~/0 60 W.C. CCM8533 EUA 3 CHARdiN6 CAFj FAtLORES. lES TL74cC9 f c0 C3 o t) lV,0. ;M 19<)g NA3 7j,g3 i G Lor.E cd XFM R TEM l H A L'.' 3E STL74-CC9 ISS 10 15 70 t5 E. WORK E3 W.O. 4(C669 ZESTL7(C 0 9 I 40 09 NAD A P c BC AR D P.E llAC E.D /*/NC/f4 ul.o. 36 2 C 9. THE. Fe ueW ) Mc., L tG tt ri gge pggtED 7;gg

, KR BURN TFhT AW h itM E. TEcuBLE SH(or AND REPMR W. R 's )P UJ E SCL72A t4190 - 2 0 , 2 EstL72.Alf 140 - 19, 2E S CL71Al414&ls.

LL Ll6 h ts TD f4555 l & A R E. INcP. E.xcEyT 2ESCL72 Al4140-l$S

~~

..m._y_.__._ _ _ _ .m.,___. ___,, m. _m.-____. _

JED REsott.mCNINEES ASSESSYENT: -

eI &~ E[R 10 Cm TC' E L' A L U A TE P'A t L Ui2 E S

, hurH I

4%L WORK CONTBCL F ROCE SS C A?ACT RESCLVE Tits CCNDITCN. AN ENG' a EER;NG EVALUADCN LS RECU RED TO A INVESTGATE T;iE PRCOLEM.,

>TCN RE ' RED Y:

O R'S ' INITIATCR'S y 1SCR

~,

>?* OATE: 3 d MANAGER - . DATE:- i 4 A bf 73 AC-C((b * .

Rev.1 -

i. i I

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SUMMATION OF SYSTEM ENGINEER'S WAl.KDOWN UNIT ONE EQUIPhiENT NU5 filer STATUS C05131ENTS 1E STL 74C 09100 01 LIGirTS OK PC DOARD WARPED 1E STL 74C 09100 02 LIGi!TS OK PC DOARD WARPED BAD 1E STL 7C 09100 03 LIGliTS OK PC BOARD WARPED BAD IE STL 74C 09100 04 LIGlITS OK PC BOARD WARPED BAD 1E STL 74C 09100 05 LIGliTS OK PC BOARD WARPED BAD 1E STL 74C 09100 06 LIGiff.c OK PC BOARD WARPED 1E STL 74C 09110 07 LIGHTS OK 1E STL 74C 09130 08 LIGliTS OK 1E STL 74C 09140 09 LIGliTS OK 1E SCL 72A 1414015 LIGilTS OK PC BOARD Ll'ITLE WARPED 1E SCL 72A 1414016 LIGIITS OK PC BOARD LITTLE WARPED 1E SCL 72A 1414017 LIGirTS OK PC BOARD WARPED REAL BAD 1E SCL 72A 14140-18 LIGliTS OK PC B %RD LITTLE WARPED

-1E SCL 72A 14-140 :) LIGilTS OK PC BOARD LITTLE WARPED 1E SCL-72A 14140 20 LIGilTS OK PC BOARD 1.17TLE WARPED 1EQBN0034 BATTERY #2A FAILED TO MEET ACCEPTANCE CRITERIA -

AFTER L"2 IIR OPEN CIRCUIT. WO 391760 WRITTEN TO FLX.

BATH.RY FAILED ACCEPTANCE CRITERIA WR 359525 1EQBN0001 WRllTEN TO FIX.

IEQBN0002 POST ON BATTERY #3A WAS CRACKED AND FLATTZN OG.

WO 345770 WRTITEN TO FIX.

~

2/25'90 l

,* SUMMATION OF SYSTEM ENGINEEIUS WALKDOWN UNIT TIIHEE i EQUIPMENT NUMllER STATUS COhthiENPS 3E ST!A4C 09100 01 UGl:TS OK PC DOARD WARPED 3W ST1 74C 09100 02 UGliTS OK PC BOARD WARPED 3E ST! 74C 09100 03 UGliTS OK PC BOARD WARPED 3E SL740 09100 04 UGliTS OK PC BOARD WARPED BAD 3E SL74C 09100 05 UGitTS OK PC BOARD WARPED 3E-SL74C 09 090 06 UGHPS OK ,

3E SL74C 09110 07 LIGHTS OK PC BOARD WARPED >

3E ST! 74C 09130 OS ' UGliTS OK PC BOARD WARPED 3E-SL74C 09140 09 UGHTS OK PC BOARD WARPED 3E SCI,72A 1414015 UGilTS OK PC BOARD LITTLE WARPED 3E-SCIA 2A.1414016 LIGilTS OK PC EDARD LITTLE WARPED 3E SCL 72A-le 14017 UGi!TS OK PC BOARD LITTLE WARPED 3E SCI 72A 14140.iB UGilTS OK PC BOARD LTITLE WARPED 3E SCI-72A 1414019 LIGHTS OK PC BOARD UTTLE WARPED 3E-SCI 72A 14140 20 LIGliTS OK PC BOARD L11TLE WARPED 3EQLN002 0 LAMP OUT PMWO 402054 ALSO WAS REPORTED ON INVALID MNCR 90.QB 0001 3EQBN002 F LIGliT O K FIXTURE SL*PPORT BROKEN 3E-SGI D79 05100 02 UGilT OK POSSIBLE CHARGING CARD PROBLEM WR 543554 WRITTE':

BY SE 3E SJ1 D79 0410010 _ LIGilT OK POSSIBLE CHARGING CARD PROBLEM WR 543554 WR11 TEN BY SE 3E SAI-72D 03120 20 UGi!T OK OVER SPR ID WITH GRAY PAINT

- 3E SAIA2C 03100 03 1 ' Gilt OOS WR 36S605 CANCELLED EY WO 404114 3E ZAIA2C 03100 UGHT OK TO BE UPGRADED BY 3SM-QD 007 TO A SAFESilUTDOWN LOT. WO 407506 WRITTEN TO IMPLEMENT SITEMOD.

SITEMOD IS NOT ISSUED YET.

. 2/25'90 e

aw v--- ..a e,w-r , - v ,e- ,v

, SUSDIATION OF SYSTEh! ENGINEEll'S WALKDOWN UNIT TWO EQUIP 5 TENT NUMIIER BTATUS C0hDimr8 2E stb 74C-09100 01 LIGl!TS OK PC DOARD WARPED ,

2E ST1,14C 09100 02 UGitTS OK PC BOARD WARPED BAD 2E stb 74C 09100-03 LIGitTS OK PC BOARD WARPED BAD 2E STL74C 09100 04 IJGilTS OK PC BOARD WARPED BAD 2E-STI,740-03100 05 IJGilTS OK PC BOARD WARPED 2E stb 74C 09 090 06 1lGHTS OK PC BOARD WARPED

' 2E stb 740 09110 07 LIGitTS OK PC BOARD WARPED 2E stb 74C 09130 08 LIGilTS OK PC BOARD WARPED 2E stb 74C 09140-09 LIGitTS OK PC BOARD WARPED

. 2E SCI-72A+1414015 UGilTS OK LIGHT FAILED 8 liR BURN TEST WO 41)$17 WRITTEN TO FIX. PC BOARD WARPED, EER 30-QD 003 2E SCL72A 1414016 LIGilTS OK LIGHT llAS CONTINUOUS HI CllARGE INDICATION. WO 408933 WRITTEN TO FIX PC BOARD WARPED, EER

. 90-Q D-003.

2E-SCL72A.14 140-17 LIGilTS OK LIGilT HAS CONTINUOUS Hi CHARGE INDICATION, WO 405937 WRITTEN TO FLO PC BOARD WARPED, EER 90-QD 003.

2E-SCL72A 1414018 - LIGliTS OK PC BOARD WARPED 2E.SCb72A 14140-19 IJGilTS OK LIGHT FAILED 5 HR BURN TEST WO 411551 WR]TTEN TO FIX. PC BOARD WARPED BAD, EER 90 QD 003.

2E SCL 72A 14140 20 LIGWTS OK IJGHT FAILED 8 HR BURN TEST. WO 411549 WRITTEN TO =

FIX. PC BOARD WARPED, EER 90-QD 003.

2E.SJi D79 04 080 08 LIGi!TS OK UNIT READY AND H1-CHARGE LIGHT ON. WR 543555

- WRITTEN TO FIX-2E-QBN 0002 BATT #2B FAILED MIN. VOLT ACC. CRITERIA. WO 410156 WRITTEN TO FIX UPS IS READING 30% LOAD. WR 346029 WRITTEN TO FIX.

2.'2W90

~' '

[

a n , ,- - , y .- - - - - - - , , - - - - - - . , . ~ . , - - - , - . , , , - - - - - , - - - .. - , ,

'. / s, -

LL.iS/UPS REQUIRING TESTING EQUhPMENT NUMBER TASK NUMBER EMERGl LrrE (DCP QD 022) lE SL74C 09100-01 -

1E SL74C 09100-02 4 h#1 U IE SW74C 0910003 9t/ W 2. ,

IE SE74C 0910044

'\ MA

- 1E SL74C 09100-05 IE SL74C 09 090-06 IE SL74C 09110-07 '\ '/t7/9 c ro 7///9 IE SL74C 09130 08 IE SL74C 09140-09 IE SCL-72A 1414015 /

1E SCL 72A 14-14016 ,e 1E SCL 72A 14-14017- / --

s .1E SCL 72A 14140-18

, IE SCL-72A l'414019 lE SCL-72A 14140 20 liALOP11ANE UPS lEQBN0001 } t d CW lEQDN0002 %

4'/ ?/

5 rse r 3/i/f s - 3/t/f t-IE.2BN0003 IEQBN0004 >

EXIDE UPS lEQDNF01] put cue -- - M? 5 U' ~

lEQDNF02 ) -

DUAL LITE -

, i..,,' ,

c IE SAL 71C 03100-06 IE SAL 71C 01140 06 i

'~. ]

l'd SLD79 02 07410 1E SLD79 02 074 07 --

lE SOL-D79 05100<06- -

IE S&74C 07100 03 - *"

lE SAL 72D 03120 23 ea' Y i'I ' " 7#

. lE SAL 72D-03 .12012

~

d > ;' ' - " * 'l IE SLD79 02-074 5 IE SLD79j0410010

- - 4 ' '- " --

7 IE SL74K05100 05. 9 s. t -

IE SAL 72C 07130 03 055237 IB SLD34-18140 06 '- 055317 .

" 1C SL74C-09100 07 'h .? i13 m m) -

~

- ,e r . ,hL7 th C,-!,s -f g dep G ~u 1 :- /

., 7, . .

4

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,', \ LlGliTS/UPS REQUIRING TESTING EQUIPMENT NUMBER- TASK NUMBER Eh1ERGI LITE (DCP QD 022) 3E SL74C 0910041 067993 3E SL74C 09100-02 067993 3E STI-74C 09100-03 32 SW74C-09100-04 067993 93 w/ 9 C 3 7

_067B_93_ wo 3E-SL74C 09100-05 066658 3E SL74C-09100 066658

) / *, e p "

f. I J 3E-SL74C 09110 07 066658 3E SL74C 09130 08 !"'*

066658 '

-h;1 3E-SL74C 09140-09 M 658 _

yic 7g f

- 3E SCL 72A 1414015 3E SC1-72A 14-140-16 066659 066659

( pd i 3E SCI 72A-14-140-17 066659 -

m l3E-SCL 72A 14-14018

^

066659 l 3E SCL 72A 1414019 066659 i

. -m 3E SCle72A 14140 20 Jg651_ yf o y; 6 , ;; ., , ,-

. . . q gg t o pygg gir g p g ^ -

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3EQBN0001 - / ,

3EQBN0002 - ' PWW*"*5"N,

.Y -

3EQBN0003' 3EQBN0004 Dot ,$jT3"b ' " ' ' '

EXIDE UPS 3EQDNF01 plc.sokl'

)C' 65b c (

3EQDNF02 054994-pjcgd -,

_ - - . . [,Z ;/;.1/

-DUAL LITE m 7, - . -

p' 3E SAL 71C 03100-06 055803 vn d ; 2-3E SAL 71C 01140-06 4 9 'I :

3E SJbD79-02 07410 -

3E SJLD79 02 074 055836s 3E SGL.D79 05100-06 x 3E SL74C 07100-03 068121 pjve35- .

3E SAL 12D 03120 23 #

3E SAL-72D-0312012 - ' " ' '

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3E SJL D79 02 074 08 055836 e

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3E SJ1 D7 Ot10010 '" '

L 3E STI-744 '-0$ 100 05 \06812T~#

3E Sale 72C 07130 03 055804 - @f" -

'j: _ : ~ -

3E SJI<D8418140 06 _056832 -- @ ' 9 '

,6 ' ' '

3E SL74C 09100 07

l*

LIGHTS /UPS REQUIRING TESTING EQUIPhlEfff NUh111ER TASK NUS111ER EhlERGI LTTE (DCP QD 022) usn u .** yyn E, \

2E S5 74C 09100 Ol l Ipf6609 4tl96j_.L1 ts selj / a s 2E SL74C-_0910042-- - - - .

_l ;

2E SL74C 09-100-03 L I

~

2E SL74C 09100-04 l 2E SL74C 09100-05 l l 1 J

7V j @ 7 1E-SL74C 09-090 06 i l I i 2E SL74C59-110dII.y't 2E SL74C 0913048 g///fl_ _j iCM5Id97iDG/[l { j __] .

2E STL 74C 09140-09 le i v i v, __ i '

,2E-SCL-72A 14-14015_ Wh?06 i 40bM7i N5 961_ !%'ed, &fm,/jeror v e stij t_7 : n- 9 o 2. \

2E SCL 72A 14-14016 _

_J_ ' l_L I p g1 a,w t.cjp, y; r/u'l o _ '

2E SCL-72A 1414017 l

} Le,m a _ </cr u . 9eso; mfc, 2E SCL-72A 14-14018 l ~

l_ l v YNTCi~f3A 14140-19 l l ! true.rjg/jge e y g g z.nfo n 2E SCL-72A 14-140 20,b_ 1 _ I_# _ _j v l_v !B]rd Juke /MF 4 *f6 1 u-96

- ~

, n. cw:n AMP HALOPIIANE UPS 2EQURD00 C ~@552 : <tn. y a l 3 ?o i

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%eia i j fu'Q'BN0002~ j 2EC[5776DU3' pic.g cue

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lu37f ;

NQDRD00C l H f2_0 -

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ip[pfyT~(; g j g i 3 . ,_g. . ;_Q ,;,

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~2 E SAL 7td5FNa-Il 10 55631 i 4g Jy c,

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1E SAL 71CJ1140-05 1055631TUhi3Zi'3s9o e 2E SJL D79-02 074- 02. !05565 I4/z 73 7R ,o 9o 7/, -

2E SJL-D79-02-074-07 !055655 f/ 2 3 ~> 7 - x a so . t ~

E SAL 7/C- Cl-!I5^[IS~ h SSb3[3 ?/2 3 3 b_ J-2-% '/?

10655b0 1/2 3Mjl-7 se, _ M -

2E SL74C 0710033 2E SA_L 72D-03-120 23 05363] 9/2 72M 3 ~8 90 Y 2E SAL 72D-03120-12 055631 yz yy ( 3.g. 9o f:

1215 y_ja-oo

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2ETOf~-l#f~02T67R8 055655 - , ,

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2E SM. 720 o3-/74-7t e$rOI +/2 7 % _}-g-9o *

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#'*58 August 19, 1991 D1JIMLD_DERVERX fREID0M 0F INFORMATION ACT REQUEST ,

Donnie-H. Grimsley, Director Division of Freedom of Information &

Publications Service I I'

O 'i O i

U.S. Nuulear Regulatory Commission r Washington, D.C. 20555 h( ' ~

Dear Mr. Grimsley:

r This is a request pursuant to the Freedom of Information Act, 5 U.S.C. 552,.and 10 CFR Part 9 for NRC documents relating to NRC Investigation Reports Nos.91-24G and 91-28G.

For the purpose of this request, the term " document" means all memoranda, letters, filings, testimony, exhibits, contracts, transcripts, minutas, notes, drafts, studies, analyses, reports, maps, diagrans, charts, books, artic1cs, pictures, printouts,

. tapes, nr other written, graphic, or computerized information in any ftan which constitutes agency records under the Freedom of Information-Act.

The documents we are requesting relate to an investigation by the.NRC involving the Palo Verde Nuc1 car Facility and can more particularly be described as:

1. A copy of Investigation Reports Nos.91-24G and-91-28G.

2. A copy of all exhibits and other supporting material referenced in Investigation Reports Nos.91-24G and 91-28G, or used by NRC to support the conclusions reached in the reforenced investigation reporto.

Pursuant to 5 U.S.C. 6 552 (a) (6) , a-response to this request is required in ten days. We are willing to pay all r.ecessary

u th and-copy Ses asse.ciated with this request. Please notify

[@D3'

e g' ; ,' )

1 A :.a. ; , 5 f; Donnas: - . . :cetcr 1.Lgust , .

Page 2 the undersigned at (202) 887-4558 if these fees are expected to-exceed $450.00. If'any_ portion of this request is denied, please

_prov ide a detailed explanation of the reasons for the denial, as_

required by 5 U.S.C. I 552(a)(6).

Sincerely, le m Bradley W. Jones t

1

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ML20114D964

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Dear Mr. Grimsley:

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