Text

Forwards Info in Form of Questionnaires in Response to 810724 Request Re Unresolved Safety Issue A-44, Station Blackout
	ML18139B623
Person / Time
Site:	Surry, North Anna
Issue date:	11/23/1981
From:	Leasburg R; VIRGINIA POWER (VIRGINIA ELECTRIC & POWER CO.)
To:	Clark R, Harold Denton; Office of Nuclear Reactor Regulation
References
	REF-GTECI-A-44, REF-GTECI-EL, TASK-A-44, TASK-OR 475, NUDOCS 8111270210
	Download: ML18139B623 (76)
	v • d • e

VIRGINIA ELECTRIC AND POWER COMPANY R.H.LEASBURO VICE PRESIDEN'J NUCLEAR 0PEBA.TI0NS RICHMOND., VIRGINIA 23261 November 23, 1981 Mr. Harold R. Denton, Director Office of Nuclear Reactor Regulation Attn:

Mr. Robert A. Clark, Chief Operating Reactors Branch No. 3 Division of Licensing U. S. Nuclear Regulatory Commission Washington, D.C. 20555 Gentlemen:

Docket Nos.

License Nos.

50-280 50-281 50-338 50-339 DPR-32 DPR-37 NPF-4 NPF-7

Subject:

Information Request Regarding Station Blackout, Unresolved Safety Issue A-44, North Anna Power Station, Units 1 and 2 and Surry Power Station, Units land 2 Regarding the subject letter of July 24, 1981 which requested information in the form of questionnaires, the enclosure to this letter is being forwarded in response to that request.

Should you have any questions or require any further information, please contact this office.

cc:

Mr. P. Baronowsky Task Manager, USI A-44 Ver;i!l(µ/

R.H. Leasburg

DOCKET NO. 50-280 SURRY VEPCO INFO IN FORM OF.

IN RESPONSE TO 7J~!STIONNAIRES Un,resolved Safet I/81. Reques!. r~

Y. ssue 1\\-44

c --

Rec'd W/ltr 11/23/81 '. *. '811127021*0**~

NOTICE -

THE ATTACHED FILES ARE OFFICIAL RECORDS OF THE DIVISION OF DOCUMENT CONTROL. THEY HAVE BEEN CHARGED TO YOU FOR A LIMITED TIME PERIOD AND MUST BE RETURNED TO THE RECORDS FACILITY BRANCH 016.

PLEASE DO NOT SEND DOCUMENTS CHARGED OUT THROUGH THE MAIL.* REMOVAL OF ANY PAGE(S) FROM DOCUMENT FOR REPRODUCTION MUST BE REFERRED TO FILE PERSONNEL.

DEADLINE RETURN DATE RECORDS FACILITY BRANCH

TABLE 1 REASON FOR DG OPERATION DC

& SCHEDULED DURATION Of*RUN NO.

TECH. SPEC. REQ'D TEST 1H None Reguired 1,1 Both Units Under 2H Construction*

2J I

I

j l :

DG ACTUAL DEMAND STARTS NOT FOR TESTING None Reguired Both Units Under Construction MISCELLANEOUS TESTS

j (SPEGIFY lYPE)

Construction Tests Reliable data on tests completed is I

""'\\-:-

not*available.

NUMBER NO. OF OF FAIL-STARTS *URES Diesel Generator Operations Data Calendar Year 19 l.E.__

PERCENT DURATION OF RUN LOADING OF BEFORE STOP FOR DG (KW}

EACH DG FAILURE I

Enclo::.ure l Ane _l _*

Plant Name ~*ANNA Unit No.

l an~f"----=-:-

IDENTIFICATION OF FAILURE (REFER TO ATTACHED LER 1S OR IABLE~3~

~

I I

i l

REASON FOR DOWNTIME DG#l ~

Scheduled Maintenance Both Units under construction.

No date is available.

Time.DG is unavailable for emergency service because of required tests.

None Piesel Generator

.eduled Downtime Record Calendar Vear 19 76 HOURS OF DOWN TIME REACTOR SHUT DOHN REACTOR NOT SHUT DOWN DGl/1 J DG#2H DG#2J DG#

DG#lH DG#lJ DG"2H OG~J e

2 Pl ant Name NORTH A~-

Unit No.

l and 2 COMMENTS DG#

TABLE 3

15

. Diesel Generator ~eduled Down Time Record Calendar Year 19 ~

Encl osur~.

Page

1 Plant Na RTH ANmr-Unit No.

. an 2 With both units under construction during 1976, em~rgency condi-tions requir1ng diesel operation did not exist.

' ! i J.

I

' l. i i i ! :

j l

, 1 t

! i !

~ : *t I

I I

I

\\ :,,

I

/

I I

TABLE l REASON FOR DG OPERATION

& SCHEDULED DURATION OF* RUN

-TECH. SPEC. REQ'D TEST Monthly Surveillance l Hour

{l Start/Test) 18 Month Surveillance 2 Hours (1 Start/Test)

DG ACTUAL DEMAND STARTS NOT FOR TESTING None Required

.unit was not operatin~

1n 1977.

MIS.CELLANEOUS TESTS (SPEGifY 'TYPE)

Preoperational Tests

l. Emergency Power System a, *starts Only

' (10 Starts/

Test)

DG NUMBER OF NO.

STARTS lH 10 lJ 10 2H 0

2J 0

1H 0

lJ 0

2H 0

?.l 0

11-1 11 lJ 11 NO. OF FAIL-

URES l

0 0

0 1

Diesel Generator Operations Data Calendar Year 19 77 PERCENT DURATION OF RUN LOADING OF BEFORE STOP FOR Enclosur Plant Nam Unit No.

f1i.t~e l

RTH ANNA

.and *2,._

IDENTIFICATION OF FAILURE DG (KW)

EACH DG FAILURE (REF~R T.O ATTACIIED UR'S OR TALll~ 3 100%

0 Minutes T;1hle 3 No lA 100%

0 Under Construction - No data Avail;1hle 0

Under Construction - No data Available 0

Test not yet required. License for Unit 1 received 0

Nov. 26, 1977.

0 Under construction - Test not required.

0 Min; rfff~re Table 3, #2A n

0 0 Min; ~tfft a ure Table 3, #2A

l

l i :

j.

(

I 4

I 1; ;

l i.

'l i '

I l

I' I'

l !

l ii !

1 I t

~

j;.

j

~ '.

~ABLE 1 - CONTINUED REASON FOR DG OPERATION DG

& SCHEDULED DURATION OF RUN NO.

l.

(Continued)

b. 3 Hours lH (l Start/

lJ Test)

2. Emergency Power System - Retest

a. Starts Only lH (10 Starts/

]J Test)

b. 3 Hours lH (l Start/

Test) lJ

c. l Hour Run to lH Verify Repairs lJ

3. Station Blackout lH at Shutdown Condi-lJ tions l Start/Test (Duration of Run Varies)

4. Emergency Diesel Load Test During SI and Loss of lH Normal Station Power

/

lJ

5. Verify Repairs lH Not Full Test (Start Only) lJ Diesel Genera perat1ons Data Calendar Year 1977 Enclosun 1 2-< e _?._'__ __

Pl ant Na111e ANNA Unit ~o. ___ a 2~-=-

NUMBER NO. OF PERCENT DURATION OF RUN

~----

OF FAIL-LOADING OF BEFORE STOP FOR IDENTIFICATION OF FAILURE STARTS *URES OG (KW)

EACH DG FAILURE (REFER TO ATTACIIED LER 1S OR TABLE 3)

~...

l 0

100 l

0 100 10 0

0 10 0

0 l

0 100 l

0 100 Table 3, #4A l

0 100 Table 3, #4A 2

0 Bus Loads Multiple Start of 2 EDG's.

e-2 0

Bus loads Multiple St.art of 2 EDG's.

1 0

BtJc;. I n;irlc;.

M11lt.iole Sti\\rt of 2 fPG'S.

l 0

Bus lnads M11ltiale Start of 2 EDG's, 2

0 0

Table 3 #3A l

0 0

Table 3 #3A

I

. 'i

- i j

'. l

-l.j

.. : ! *1

';)

j I

.. I I

I REASON FOR DOWNTIME DGill J Scheduled Maintenance Preventative Mainten-53 ance Semi-Annual and Annual Time.DG 1s unavailable.5 for emergency service because of required tests.

Diesel Generator~duled Downtime Record Calendar Year 19 l]__

HOURS OF DOWN TIME REACTOR SHUT DO~IN REACTOR NOT SHUT DOWN OC#lJ DG#

OG/f2H DG~J DG#IH DC#IJ OG#

DG#2H 0

0 0

.5 0

0 OG/eJ 3

Pl ant Name NOR ANNJr:'""

Unit No.

--i-a"nd 2 COMMENTS 4 **

Unit l received a license to load fuel on November 26, 1977.

Plant was in cold shutdown and *.

one diesel was required to be operablE

Unit 2 under construction during 197 Neither unit was critical in 1977. N tests on Unit 1 after licensing rende ed either di.e.s.el inoperable.

Unit 2 under construction during 197 I

j.

i

.. i

.TABLE 3 LER ABSTRACT NO (REFER TO ATTACHED TOTAL

LER ABSTRACTS LER 13 LER 14 lA-No LER-EDG-lH 2A-No LER-EDG-lH, lJ 3A-No LER-EDG-lH,

. *1J 4A-No LER-EDG-lH, lJ Diesel Generator tleduled Down Time Record Calendar Year 19 77 Enclosur Plant Na Unit No.

P.ige

4 RTH AN-NA-and 2 Design deficiency.

The unit was not licensed at time of failure.

Design deficiency. The unit was not licensed at time of failure.

D'iesel tripped on high crankcase pressure. This failure wou~ot have prevented an emergency start of necessary. The affect~it was not licensed at the time.

Each diesel tripped once on high crankcase pressure.

An emergency start if necessary would not have been prevented. The affected unit was not licensed at time of*failure. Modifications were subsequently made by the diesel manufacturers ~epresentative to the air ejectors on each diesel system.

Each diesel was retested satisfactorily.

Starts to verify repairs.

Starts to verify level switch operation.

(i) Breakdown of downtime hours into categories is based on best estimates, accurate data of this type is not available *

Unit not licensed at this time.

Downtime hours cannot be accurately determined.

I j

, i I

1 *:

.1 I

J. 1 ~

i I

I

.. I

! : i J

I I

. : l I l

)

C I

1 i i

J j

*; i

, I

I

j '*

TABLE l REASON FOR DG OPERATION

& SCHEDULED DURATION OF*RUN TECH. SPEC. REQ 1D TEST Monthly Surveillance

p Hour) l Start/Test) 18 Mon th Su rve i 11 ance

~2 Hours) l Start/Test)

I DG ACTUAL DEMAND STARTS

. NOT FOR TESTING MISCELLANEOUS TESTS (SPEGIFY 'rVPE)

Start-Up Testing

1. Station Blackout

("'.5 Hours)

(l Start/Test)

DG NUMBER OF NO.

STARTS lH 16 lJ 19 2H 0

2J 0

lH 0

lJ 0

2H n

?.l n

lH 3

lJ 3

lH l

lJ l

NO. OF FAIL-

URES

l.

n 0

0 0

0 Diesel Generator Operations Data Calendar Year 19 78 *-

PERCENT DURATION OF RUN LOADING OF BEFORE STOP FOR Enc"tosur rag~ J__

Pl ant Nan ORTH ANNA Unit No.

1 and 2 -

IDENTIFICATION OF FAILURE DG. (KW}

EACH DG FAILURE (REFER TO ATTACIIEO LER 1S OR TAOLE. 3 100 0 MIN See Table 3 #5A 1nn 0

Unit 2 not licensed - No tests completed.

0 Unit 2 not licensed - No tests completed.

0 Includ~d in Pre-Op Test Program.

0 Included in Pre-Op Test Program.

0 Unit 2 not licensed - Tests not required.

Multiple start of 2 EDG 1s.

-=

75 Multiole start of 2 EDG's..

. 40.

Multiole start of 2 EDG 1s.

/.

.* i i

1 i l i

' : l i

TABLE 1 - CONTINUED REASON FOR DG OPERATION DG

& SCHEDULED DURATION OF RUN NO.

Preoperational Testing

l. Emergency Power System (

a. Starts Only 2H (10 Starts/

2J Test}

b. 3 Hour 2H

('1 Start/Test) 2J NUMBER NO. OF OF FAIL-STARTS *URES 14 0

30 2

1 0

l 0

Enclo~ure ge 2

Diesel Generator Operations Data Pl ant Name H ANNA Unit No.

l aod 2 -

Calendar Year 19 78

~

PERCENT DURATION OF RUN LOADING OF BEFORE STOP FOR IDENTIFICATION OF FAILURE DG (KW).

EACH DG FAILURE (REFER TO ATTACHED LER 'S OR TABL[ *31 I

0 0

Table 3: JIF. A

-=

100 100

i l *: j

~ ; '.

i i

I

: l

I

' l

'* I

; I

: l

' -~

i

., I

' i

}

I

. l ABLE 2 REASON FOR DOWNTIME DG#l~

Scheduled Maintenance Preventative Main-36 tenance Annual and.

Semi-Annual Equipment Modifica-tion Time DG 1s unavailable 1

for emergency service because of required tests.

P1esel Generator uled Downtime Record 3

Calendar ear 19 ~

Pl ant Name ANNJ\\

Unit No.

1 aod 2 HOURS OF DOWN TIME REACTOR SHUT DOWN REACTOR NOT SHUT DOWN COMMENTS II*

DG#lJ DG#

DG#ZH DG/eJ DG#!H DGIIJ J DGI DGtH DG/e,J 27_.

6 7

7 12 Modifications to Emergency Diesel Generator Battery Racks.

LER Nl-78-125 (Enclosure j

I

Un;t two u*nder construction during 1978.

I I

i I

I I

-i 2

3

3.

Portions of this data are based on I

best estimates.

I

Unit two under construction during 1978 *

~

\\

M"

CJ<

TABLE 3 LER ABSTRACT NO (REFER TO ATTACHED TOTAL LER ABSTRACTS 5A-No LER-EDG-lH l

l 6A-No LER-EDG-2H 7A-No LER-EDG-lJ 20 2

Diesel Generator Unscheduled Down Time Record Calendar Year 19 lJi__

Enclosu-- Pa9e.A__

Plant Name NORHI ANNA Unit No.

J and 2 18 The diesel tripped on overspeed.

The generator fuses had not been installed prior to the start after maintenance.

The fuses were installed, the test rerun satisfactorfly. The reactor had not yet reached initial criticality. An overspeed trip would prevent an emergency start.

The diesel tripped on overspeed for both failures.

The governor settings were incorrect.

An overspeed trip would hdve prevented an emergency start.

Diesel was removed from service for replacement of several battery, cells.

CD Breakdown of downtime hours into categories is based on best estimates. Accurate data of this type is not available.

Unit not licensed at time of failure. Reliable data on downtime not available.

TABLE 1 REASON FOR DG OPERATION OG NUMBER NO. OF

& S~HEDULED DURATION OF FAIL-OF*RUN NO.

STARTS *URES TECH. SPEC. REQ 1D TEST Monthly Surveillance lH 23 3

1 Hour lJ 22 1

(1 Start/Test) 2H 21 5

2J 16 0

18,Month Surveillance lH l

0 2 Hours lJ l

0 (1 Start/Test) 2H 0

2J 0

, J

', i Load Rejection Special lH 1

0

)

.Test - Time Varies lJ 1

0 (1 Start/Test)

EOG 24 Hour Run 1H 1

0 (lStart/Test) 1.1 l

n DG ~CTUAL DEMAND STARTS NOT FOR TESTING lH 1

0

1 1.1 1

0 2H 0

\\

2J 0

1 Enclosure age 1 D1esel Generator Operat1ons Data Calendar Vear 19 ~

Plant Nam TH ANNA Unit No. l and 2 * ~

PERCENT DURATION OF RUN

~

LOADING OF BEFORE STOP FOR

. IDENTIFICATION OF FAILURE DG. (KW)

EACH DG. FAILURE (REFER TO ATTACIIED LER I S OR TA(U.i 3) 100

. ~OM$n, 0 Mm, ec.

Table 3~ #11. 9. 6 100 0 Min Table 3; #7A, 100

~11 Trips - <10 lin Table 3; #SA 100 0

100 Multiple start of 2 diesels

~

100 Multiple start of 2 diesels Plant not licensed - Tests not required.

35 35 I

100 I

I 1nn 0

Multiple* Start of 2 EDG's 0

Multiole Start of 2 EDG's Plant not licensed Plant not licensed

(

I

/'

I

*~

- ~--

)

I

~

~. '

TABLE l - CONTINUED llE/\\SON FOR DG OPERATION DG

& SCIIEDULED DURATION OF RUN NO.

MISCELLANEOUS TESTS (SPECIFY TYPE)

Preoperational Test-ing

1. Station Blackout at Shutdown Con-2H ditions 24 Hours

?'.1 (1 Start/Test)

.5 Hour 2H' (1 Start/Tes:t) 2J la. Station Black-out at Shut-down Condi-tions -

Retest 24 Hours 2H (l Start/Test) 2J I\\,.5 Hour 2H (1 Start/Test) 2J

2. EOG Load Test Our-ing A Safety In-jection and 2H Station Blackout 15 Min.

. 2J (l Start/Test)

NUMBER OF STARTS l

1 l

l

-~

2 l

l l

l Diesel Generato erat1ons Data Calendar Year 19 El..__.

Enclosun* 4 -- 2 Pl ant Name riO.

~&~=

Unit No. __ _l_ari_2 ________ -

NO. OF PERCENT DURATION OF RUN FAIL-LOADING OF BEFORE STOP FOR IDENllFICATION OF FJ\\ILURE

URES DG (KW)

EACH DG FAILURE

{REFER TO ATTACHEU LER'S OR ll_\\ULE 3)

~..

0 100 n

rnn

~

0 50

-~ultiple start of 2 EDG's.

0 50 Multiple Start of 2 EDG' s :*

l Bus Load 22 Hour~

T.:1hlA ':I*

-NOii 0

Bus Load 0

Bus Load

I 0

Bus Load 0

Bus Load

*,. ~

'I I

~

~ i TABLE l - CONTINUED

-REASOt~ FOR DG OPERATION

& SCHEDULED DURATION DG OF RUN NO.

3. EDJ Load Rejection Test Time Varies 2H (1 Start/Test) 2J

4. Emergency Components Sequencing Test During Loss of Normal Emergency Power 2H' Time Varies.

(1 Start/Test).

2J Verify Repairs 24 Hours 2H (1 Start/Test) 2J NUMBER NO. OF OF FAIL-STARTS *URES l

0 l

0 1

0 2

1 0

0 Diesel Generat perat1ons Data

Calendar Year 1979 --e _}__*

Plant Name ANNA Unit No.

1

- r-PERCENT DURATION OF RUN LOADING OF BEFORE STOP FOR IDENTIFICATION OF FAILURE DG (KW)

EACH DG FAILURE (REFER TO ATTACIIED LER'S OR TABLE 3) 100 Loaded for l Hour 100 Loaded for l Hour

\\

'v50 1\\,50 100

??

Table 3. #lOA I

~

i I

~-

.ABLE 2 Diesel Generator duled Downtime Record 4

Calendar ear 19 79 Plant Name NO T ANNA---

Unit No.

land 2 HOURS OF DOWN TIME REASON FOR DOWNTIME REACTOR SHUT DOWN REACTOR NOT SHUT DOWN COMMENTS OG#IH DG#IJ DG#

DG#2'1 DGh2J OG#IH DG#IJ DG#

DGitZH DG#2J Scheduled Maintenance Preventative Main-tenance 171 401 12 26 Excessive amount of hours down occurre Semi-Annual and during a refueling outage. Only one Annual diesel was required to be opera~

Unit 2 not licensed during 1979.

Equipment Modifica-tion G)

CD CD CD (D Two major modifications were com-pleted on the Station electrical sys-tern and two minor modifications were completed on the diesels in 1979.

These modifications required the diesels to be removed from service from time to time but never both at once.

Because the unit was in refuel ing only one diesel was required to b operable at any time.

Downtime information for diesels out-of-service during this time is unavail-

't able.

I Time DG 1s unavailable 3

35 2.25 2

Unit 2 not licensed at this time.

for emergency service Downtime hours not available.

because of required tests.

-,,,i.;,.;.. *,

,,. "'* *.'.,a.\\,!-.. :'-

*. **",--.'.\\'*, '*",..* * **

__,'~-'--.:.*.., '

. t*:.!

i j

i ;

TABLE 3 LER ABSTRACT NO (REFER TO ATTACHED LER ABSTRACTS LER #5-EDG-lH LER #6-EDG-lH 13 20 Min.

LER 117-EDG-all 0

LER 118-EDG-lH, lJ 0

LER #9-EDG-lH 24 LER 110-EDG-lH, lJ 1.5

. LER I 1.1-EDG-l H 3

LER 112-EDG-lH, lJ lH-12

. lJ-22 l7A-EDG-1J No LER 18A-EDG-2H

. No* LER

22 Hours 2

20 Min.

0 0

24 0

3 0

0 16 Diesel Generator cheduled Down Time Record fnclosu~*

- Pdgc* 5 Plant Ne

!Bill.ANNA_

Unit No.

ao.....

cJ--42""--__

0 0

Calendar Year 19 79 11 0

0 0

0 1.5 0

12 22 6

This failure would not have.prevented an emergency start if necessary.

The EDG was invnediately restarted and its operability verified.

Emergency start capability not impaired by a possibly insuffi-cient fan cooling system.

.a....

Surveillance of diesel generator batteries was late. Howeve~e:

emergency capability was not impaired.

Cause of failure was unknown.

Diesel was started and loaded short!

after the diesel trip and found to operate satisfactorily.

Each diesel was taken out-of-service to complete maintenance.

The!

design flaw described in abstract #10 would not have prevented an emergency start.

Diesel did not start in less than 10 seconds. This would have no effect on an emergency start.

ufflers removed from each diesel exhaust. Emergency service only impaired while removing mufflers.

1 Diesel already out-of-service for preventative maintenance. Ablel 1

result of slug of air in fuel filter. An emergency start c~ no, have occurred.

EOG 2H tripped each time on high jacket cooling temperature. Ext sive investigation over a month's time determined the cause to be insulation packed in turbo-charger fan blades ~nd on top of fan coi he unit was not licensed at the time.

Such a diesel trip on jac cooling temperature would not have prevented an emergency start.'

(])Breakdown of downtime hours into categories is based on best estimates; accurate data of this type is not available.

Unit;2 not licensed in 1979.

Hours downtime.cannot be accurate determined,

TABLE 3 ER ABSTRACT NO (REFER TO ATTACHED LER ABSTRACTS

~A-EDG-2H

~o LER

10A-EDG-2H No LER I

j

1 *

! *)

I

! i !

! i

! i i !

i Diesel Generator Unscheduled Down Time Record Calendar Year 19 l!J__

Enclosure l'.ig~ 6

Plant Name HI ANNA Unit No.

1-~n ~~-~_~

Diesel tripped on high cooling jack~t temperature.

The unit was not licensed at the time.

An emergency start would not have been impaired.

Diesel was removed from service for high exhaust temperatures.

Th injector nozzle on #3 cylinder was found defective and repla.d.

In addition, the inlet air check valve would not open freel~

Further investigation resulted in the conments of 8A above.

I (i) Breakdown of downtime hours into categories is based on best estimates; accurate _data of this type is not available.

Unit 2 not licensed in 1979.

ly detennined.

Hours downtime cannot be~r

' i I

I I

I

I I

. i l

I I

TABLE _1 REASON FOR DG OPERATION

& SCHEDULED DURATION

. Of* RUN

-TECH. SPEC. REQ 1D TEST Monthly SurveH lance l Hour (l Start/Test) 18 Month Surveillance 2 Hours (l Start/

Test)

. 18 Month Surveillance Time Varies (1 Startt Test)

DG-ACTUAL DEMAND STARTS NOT FOR TESTING MISCELLANEOUS TESTS (SPEGIFY lYPE)

Preoperational Testing 1; Diesel Loading D.uring SI and Station Blackout.-

11H 11 Bus Time Varies (1 Start/Test)

- DG NUMBER NO. OF OF FAIL-NO.

STARTS *URES lH 36 2

lJ 15 0

2H 21 l

2J 19 4

lH 0

0 lJ 0

0 2H 0

0 2J 0

0 2H l

o.

2J l

0 lH 4

3 lJ 3

0 2H l

0 2J 0

0 2H 2

0 Enclosure Jage* 1 Diesel Generator Operations Data Plant Name TH AN~

Calendar Year 19.ill)___

Unit No.

l and 2 PERCENT DURATION OF RUN LOADING OF BEFORE STOP FOR IDENTIFICATION OF FAILURE DG (KW)

EACH DG FAILURE (REFER TO ATTACHED LER 1S on TAB&tli 3) 100 20 sec, O sec. Table 3 # 3, 4, respectively 100 100 0 Min.

Table 3, #llA 100

~a~r 1 Failure -

11n.

Table 3, #l2A

-=

0 Test not required in 1980.

0 Test not required in 1980. *

-o Tests requirement meant during start-up testing. --

0 Start-Up Testing.

Bus Load Loaded for Approx

45 min.

Bus Load Loaded for Approx. 45 min.

0

"',8 ~~~~ iu Sec* Table 3, #3, 13A (Multiple Start 2 EDG'S) 0 Multiple Start of 2 EDG's.

0 0 Min.

Inadvertent SI - Unit not licensed.

0 66,100

. ~

i.

l

! j

.* 1

: i j

j i

I,-*

i j

i.

't I;.

I TABLE 1 - CONTINUED REASON FOR DG OPERATION NUMBER

& SCUEDULED DURATION DG OF OF RUN NO.

STARTS

2. 2H/2J Load Rejec-tion*

2H 1

. Time Varies (1 St~rt/Test) 2J l

STARTUP TESTING

1. Station Blackout 1/2 Hour (1 *start/

2H l

Jest) 2J l

SPECIAL.TESTING

1. EOG 111 H 11

. Start

Demonstration Test lH 2

2. Emergency Bus lH l

Residual Voltage

'lJ 4

Bus Transfer Modi-fication Function~l 2H l

Test 1 Hour 2J 1

(1 Start/Test).

VERIFY OPERABILITY lH 10 AFTER REPAIRS STARTS ONLY-lJ 0

2H 0

2J 8

NO. OF FAIL-

URES 0

0 0

0 l

0 0

O*

0

. 5 0

I 0 4

Diesel Generato perat1ons Data Calendar Year 19*..filL_

PERCENT DURATION OF RUN LOADING OF BEFORE STOP FOR DG (KW)

EACH DG FAILURE 66 30 Bus Loads Bus Loads 0

0 Min.

Table 3, 1114A 100

- ~! 2 -

Pl ant Name NO N~A--

Uni t No.

1 a 2

IDENTIFICATION OF FI\\ILUR[

(REFER TO ATTJ\\CIIED L[R'S OR l/\\BLE 3}

.. *~

J 100 Loaded only on one Start 100 100 0

IU Mln,i::'.U :,ec. i::'.U

~o" _n Min.n Min. Table 3, #15A, #3 (Refer to last four events.) --

0 0

0 lO Min, o Min, Table 3,#16A O ~in, 0 Min I

I l

i. '

l I

Ii REASON FOR DOWNTIME DG#l~

Scheduled Maintenance Preventative Mainten-ance Semi-Annual and 93 Annual Time.DG is unavailable

. 5.

for emergency service because of required tests.

Diesel Generato eduled Downtime Record Calendar-ear 19 fill_

HOURS OF DOWN TIME REACTOR SHUT DOWN REACTOR NOT SHUT DOWN DG/IJJ DG#

DG#2H DG/eJ DG~H DG/IIJ DG#

DGil2H 0

79 70 55 112 29 0

1.1 6

8 6

3 DG#2J 55 2 -*e J, -

Plant Name B I\\NNA-Uni t No.

1 and 2

--~

COMMENTS The following hours for each diesel were spent in cold shutdown where on one operable diesel is requir~

lH-93 2H-45 lJ-0 2J-48

./

The diesel in question is ready for I

emergency service i111nediately upon

~ompleting the test. Portions of thl data are basea on estimates.

~

~ !

'. i I

' i '

I I

!. i

-BLE 3 LER ABSTRACT NO (REFER TO ATTACHED LER ABSTRACTS LER #1 EDG-lH EDG-lJ EDG-2H EDG-2J LER 12 EDG-lH LER 13 EDG-lH LER 114 EDG-lH 11A-2H-No LER 12A-2J LER N2-80-05 I

6 6

2.5 2.5 0

97 45 9

0 0

0 70 16 5

Diesel Generator Un uled 8own Time Record Calendar Year 19 ~

Enc1osure P1ant Name Unit No.

l ------

Testing 0

6 0

2.5 0

0 0

27 29 0

4 Diesels were removed from service to install timer on output breaker and for subsequent_.testing.

One diesel remained operable at all times.

I The EDG remained available for emergency service during this event.

The first four EDG trips were overspeed trips and would have preventel an emerQency start. The fifth and sixth EDG trips mentioned in L.ER i

80-032 (#3 in abstract attached) were due to high crankcase pressure and would not have prevented an emergency start.

Diese1.trip was due to high crankcase pressure.

An emergency start would not have been prevented.

The failure could not be duplicated. The unit was not 1icensed at time of failure.

For the first and sec*ond event, the unit was un1icense~; for tit third event, see LER 80-05; for the fourth event the failure occurred while the diese1 was being brought back to servtce from preventative maintenance, but was not yet operable. Each failure was due to high crankcase pressure and would not have prevented an emergency start.

CD Breakdown of downtime hours into categori~~ is based on best estimates; accurate data of this type is not available *

Unit 2 not licensed.

Downtime hours cannot be accurately determined.

l; 1;

I I

' *1

. ' l

. ; *i TABLE 3 = Continued LER ABSTRACT NO (REFER TO ATTACHED TOTAL LER ABSTRACTS 13A-1H LER Nl-80-32 &

28 t 37 I 47 14A-1H-No LER 15A-1H-No LER l6A-2J-No LER 17A-EDG-2J LER N2-80-0l4

. l 8A-EDG-2H LER N2-80-014 167 2

0 3

1 145 0

0 0

0 Diesel Generator U~eduled Down. Time Record Calendar Year_l9 ~

E11cl osure-Page _5_-

Plant Nam UH ANNA Unit No.

a11<f_2 ___ _

2 20 2

0 0

3 0

1 If any of the reported failure~ would not have been a failure under emergen~ conditions, please explain here.

1 es J is tecl in Ta,hJ e EOG trips on overspeed during an emegency start subsequent to a safety injection.

D.iesel tripped on high crankcase pressure.

not have been prevented by this failure.

An en~rgency test would I

First failure due to high crankcase pressure. The unit was in col shutdown at the time and the remaining diesel was operable as per technical specifications. The length of time the diesel was inoperable is unknown.

An emergency start was no~ prevented.

Each failure due to the EOG tripping on high crankcase pressure.

The unit was not licensed at the time.

An EOG trip on high crank-case pressure will not prevent an emergency start.

1 The 112J 11 EOG was removed from service for replacement of a trans-former which supplies control power to the auxiliary lube oil pump.

The transformer failure would not have blocked an emergency start of the diesel.

The "2H" EOG was removed from service to replace a jacket heater transformer. This tranformer failure would not have prevented an/

emergency diesel start *.

1 Breakdown of downtime hours into categories is based on *best estimates; accurate data of this type.is not available.

Unit 2 not licensed.

Downtime hours cannot be accurately determined.

I

l l i *j

\\

! ; i

. l.

1 TABLE 4 Onsite Emergency l Generator and Auxiliary Equipment Modification Record e 1 Pl ant Name ANNA Unit No. Jand2~

EQUIPMENT OR DATE OF REASON FOR MODIFICATION AND DESIRED DESCRIPTION OF MODIFICATION PROCEDURE MODIFIED MOD.

IMPROVEMENT Diesel Generator Exhaust Silencer Diesel Generator Fan Drive Shaft Diesel Crankcase Vacuum Pressure Switch 12/79 12/79 3/80 Fuel Oil Day Tank 2/89

Level Gauge Governor Motor-7/81 Operated Potentio-meter Circuit Prevent potential stopping of diesels Reinforced concrete and structural *steel tornado missile 1 on high back pressure due to constr1c-shields were installed on the diesel generator exhaust tion of exhaust path by a tornado ine up to the atmospheric bypass point.

missile.

Eliminate need for seasonal changes Drive shaft coupling rating was increased from 180~ to to the fan blade pitch angle settings - 230 HP by changing the four bolt configuration of 're due to variation in torsional loads.

crankshaft and power takeoff shaft flanyes to a six Prevent diesel from tripping on crankcase vacuum after starting.

bolt configuration.

Shutdown setting for switches was changed from O.b inche~

of water to 2 inches of water, which allowed crankcase vacuum to be established before shutdown circuits ener-gized. This change required replacing with higher range<

switches

Prevent siphoning of fuel oil back to An air trap was installed in the level gauge sensi. -in~

the gauge when the diesel day tank fs overfilled.

To assure the operator that the diesel An automatic reset was installed in the governor motor-generator will operate at 900 RPM operated potentiometer circuit.

(the preset speed *condition}.

"" p

~ II ll er Ill

-4

u,.

~

J* -r-t

11 I*

'" -< J* u - " It."

X 'U-4.J~-4f*t.l rJ1:-i1,11.r* r11, I* 111 Ir. tJI C

u,,

-t MO

% 00 I

I fl I}

\\'

l'I n

-4 Zo 0

20 00 I

(:

,: tfolf. ~ 1* l: l.' : l. - l, l"* -t (' C' t,. I. > l" r C - < 0 O <!>

I) :, r, J*.J I 'I** ** r1 I'" > "\\I J -

), I\\'.. < C _,

I(' -

..., ("* ("1

-* *,.1

l" l' n ir -i t' 1/1 T. 11* - r -t, (r J* I XI O* J" I~ t, o

( "* <

-.i: 11 l' l (. -4 fl'.l lJ r * (.1 J' -

(,I

<"',.,If. C -

1:~:J*

,,,,,... ~ _ _,,. IJU* c*-re.1-

-,11... \\11

>,:;.,, c...,.* *l ;.*-cr***l o-7i,.(I, 7.rt"'

11r~:*1..

1,c;, -nr:,,,u.r

... u,,

.* r *

r, *- < a: _. z

- r

u,

-1...

>* c, t11 *

, I I

* J ~ (".-'. -

I:" *H*

C" r* _, T 11 I\\*

.1 r ***

t, 111

7. t..-*.~1**<

!... -c 111,~c,

., 1

,. ;* o

,,, -c

,., rr

""',, r..,

r,,

1.. 1 *

l

J L ::: r

o

.~

-< I' r:.

n; 1 *

.1 r r r

>* -1 11 I I n,.

<I.

a1*u;1...

1*r, o

-,-4 IC _, (.' l ~: :l'... n r.* _,.** J I

,: l,*

l* C.1 I,'

.. I

.: f

I J.~ :l l/1 <.

f'\\.;* I. I\\!

,- A1 l'I J* I* *If;

)* I!

n* \\: C. C

1 JJ f"\\

, n "' r

1.'= r*

n *

I\\ ~. ~ -, -H. r* *./ I;; I *I.',..

C'1 ).'

1i.*.* r11

--*l*-.l*

,_;:c.:;

""I Al*J*(('*111" Lr, l:"""11 T't l:

cr*1*vt.J1c c:ur,c C.'11'*

1: *11 t** l,, **

1 r** c *,

,.. r I.

I!

,, **. -* "' ** T" r.,,

1-...

ll1 r1; u

. _,,,*~*J,~c*

1.1 n:,

.l'7

- c;*-11.*

r*~

,.*,1, 01:.n*..,,.., rr,; J \\.:*

c-,_.,.-".

I** II

.,; 1 * < t** ;;* -C ~

11 "l r-I.I -4,II

. J I L I I J I '

I',.

I

C. (" *

("'I

( -*.., J*

hi I

~ ;~

r: C r \\' 11 ".' 11 *( I ~* C, )*.;. :!

J*

fl 1** 1,.

I* -

I*

r (l ftol'l 1' I.I

\\ Cl,, *

.. C / 11 rr

,.,, I n:

* *.. I* :t. ll J C,i"...

,l. -~ I C I."' 1 I* ;1 I" J {*

,f J, fl' r'!

I l/,._

.-:r*~****r,_.,.,... r-J*r**

,r:r<-~J

-11*...,.

(. J*,*c* J, t*

,us z I *,

l ;..t* ***

V* I' I

"\\.: '.

I* r' *I

' V -

f"; t-l' _. ;,*

> j.'.

1\\1

..**. l

'", ;~ \\ :, '....

., J. l.... r:.

\\ 11.: -< l

!.,. f * ** ~.- I

r 1 **~.,, 1*;" '*~*

r*::. 1 **,.'

t*

,,. 1 *,,.. I' l ?.,., (

I* o J.

. ~*, *. ~ -:. :, r:,.

1;... -4.,,*:.

.. ~

... I... II II,,... ;~.... *.:,,. r*

... :r I}

I I II : I"

1 ; r,, I, r J*

f' I I II :_,.-

{"

- - l."

J C *t r;,c, *-C,,*l*

.!; -t

(. I* I I,..

1*1. C C.,,,,.,.1 C. ;,

i

11

,-

I, 1

1 *.,

. J -<',:

?; 11

,l."u r, -*t**- "

r 1,

r. *, **.* ~, :1 r,.,,. ~,

n -*

I,:, '.Jll'l"f"" 1.111,; (.***},r, 1

I***,"*: U*I' 11 f

11 -'I'*

I*

_,.,.,,,*1°1 JI 111 -I,,,. *11 A'

I I l' 1.

I I*

,' :1 I 'I J' 111 t'

I I I.*'; I,..

-, 1** 1 *

(I c*

I

- I

!I I I

I f I~

I I***

C:,.,

.r r.,

C

u n

C..*<

l'I tll ll,,.

r1; C*

z lJ

A.'

-4

I I I

< (.1 V

~

... 'O r,* C 1: z 1~-<,. u.. ~ n t,*

J: 't -4 :ll-4(1IJ 0 '" nt ll r Ill ',,

,. rl'l lfl lfl Ill nz 0-4 0 rrn C "

...... o J:

OCJ

. z"

'\\.-

C, 0

0 zo 00 I

~

(l mru-t~~rr~<o~o~*,,.~ro-<roo tl)1-mCYO-C~M~CC-4

~-~o~

I,. Z )* II "Tl~ fl, rm "t _. * {f' J>o I ;r O* l'. t,: "' 0

)*... :,.;,it"...

C It 11 r* C :r - IJ Or;'

o,..

n~ vnr~... ~m~ o-rw*

... ~... lfl n.,,, r r rr c...,,, r c:.... z,. o,

2 c 1n, u 1., 111 - r,

7. 'Tl

" o*

r

... rr....,,

-;, ** v re-z r,C"'t: C'lc

-1...

ri

,..r....,

l' ~*

,,.,,,c,- ~,11... 1'1 c,r.... x*

o

... c;, *,, :-!

~* -<

7

'?... -<

rr o 1.i

...... '" c 11..., n*

..., Mc*,,,

... ~ "'

r...

'1,l. *r, a: ;; " ]

-' IJ 'J: 1J 7

-( f'I C n* r 1'..-'tl*l.,*.'.Pt::"l-rr-C" I'*

f"\\

t., ll' I. ll' _,

I:

-t l..

I

(,

-t <

C*r v~-,rc>I

~u

~~ ~

- -1 11 :,,;: :(* J* -t J> To UI f" 7. 1i...

... r "zo~ -cI~r re""~

PC

i_;.,., l1C'

n >*rt*r,tn n*

i:

1,1 11!(.-..t'll:::lt** fV o'4

~,

,~

~-(

~

~~Q

-< ;~

r.... 7 [1 T. If' o:

t; C T.

~* M~~'llC*-'-'~ ~u~c r

ll' c,

c.

>> :r *

'" r 1,

c~

-4 Z 11; ll'... I l" n

U"tl:.>IC'J,7 o*n:J.*

n c

rr u,,.

r**

"Tl 1J n

CJ "!!

1r.,~

_, v,.. c c r er 7

7. n c...,,,.. cu,.-,11-=:

- f.1-4 x.

-' C.

l' C C l' r ;:1 C () * ( I

.1* ~ *

-. ( r

r

1.* >-*

A; er L C...t C'... 1

r fl

,, C

l*

r-n

<L-r rn*~,*

II* 0 Q

CL* r. i,. C r 1;,

1r 7 I 11*

z ~-1--rr? < 7-i1~

11'111rrr.<c-cr*.

_, v-

, t.*

er 11*

c; r _ V l." r-I J

>- -t.. -' I"

-4 r., C *,-, 7

!~ -

>* 7. l""' a- ~' C I

r. ~

rl'U11-* L

-t I\\)

r*, r*

fJ r* ::-

c- *

:J Ci*

C II' 11 11, Tl -4 I o

..

l..

-4

... r :r,,. r z i, c

,. -,;* ;r.,,,.

er, I...

~

"11 l' -4 C: 111 u C" C Ii l l'

C C J* r I" fl

.. :I

,t:

J, Jt.r,,

J,-c

i. I* l~ C.- -4 l"* J L 1n

~.: r-J*... z n i;. "' 7. r 111

-;:J-cr,1*

-'?: I J...

1) r J l'r

,,,,-.... rr.r-1,, r -t I -l"

.* -4 c.u J!' rn fll

(' -4 l*

J in/:

C*J; l:*

n

< f: -:: 1,. s-

,n... 2 ;:

r *

.. r-t"l:r,lfl rn

l.

C* -

'S

(

11',

Ill

,c n C'

\\;

rJ n

~

r;,...

'll'll oc,

~c

lit, n...

u 7.

l' c;*

lJ o(

Jo J

)*

-4 7

l" l....

J

?..

)*

-< Cl

(.., :I r.*

Ill.

I,.. t I t I r11-c >>c*:-n

.J'tl-4:u-.n onur vrn

-i"\\I r110 l" z m

nz ll -4 0

rTl(l i1,.

n...

r

\\

> n* ir.

C Ill

t C z a

0 fll z

Cl

fllnn~lf'-0~-4... ~rro~~*~rc-<~c m~c

-z~~~~7~>~~<~... ~-er l-'~0~11'1/'~

>~~...,~,..,~ ~~-4N M~~z7........ ~_.z... crro7... w o, c

~~~ ->~... ::r:111*~ o-r~~

-c...

rn~z~~r2 M~ *o-z>7,

?~r

~,-10-r n.~c

~ ~~*r

~n cnrn~~~n~tr

~

,.~~

... o rr, > o ;c c ~ l1... r c r _. ~,..

J c*

r;* :t1c :.t.7.

r.c.*11*nr,c<

!.. -c.. ', Pl>*"

rr. n-. OJ... o c..,,,. J: o... z,,...... "t I ; r ~.,

z c.. r1 2 "

" c rr 7.

-<,,, * *,., r *,

,,... C",. c,

< 11 r r

... c I r

A.* -41*1 l: -4 :I... 2 C* Ir.:,.

I

-ill

,...... :r > _. r r z 1

1. o/'

t.*

... n o,

"* 111 i, -c o -4 c.*

" z.. o-or o

r n;s. -

,r~

r~

TO >~cz en-~-

r*

r V

Z 7 ll If*,.. C Z 111...

-4 C'I v~ ~~--.~r~ u~

~~P

~

-<:ll

I-' ~v n~o

~c~

~~v -1> u,,,r:i*o... o ca,,c:

UJ*

,c 11'... m-ir :i 2' rr,,

trr I" c-,..

rr, n1-<

"' c: -r.

u....

l'I.

.rr,..

z

~z

~~-

~r~*

,~

n._..,. -i jC rr 11

-4 rr "O n

1**

tJ rr

,c- :it* n, (1 <, 7 -'... 7 o C" tr 7-

,., 1.'

zr ~>~mcm::r:o~~ 1~* n

-1 J..

o 7.,, r. r ;,, -11 c, r. n

T

,; c

"" r, rr, l. >*

v c. x:

u c l'

U \\I "lJ 'Z r. :. -4 r11

fr.

!'. ),

I' r...

"Orr n ::,,. c x r, r n r-1" 1' 1r rn 1J :,; -< - 7,: n* >* 7J r

m 7. t,,,

,r 7.. -4 V 1J 2 -4 I C*

11

~ o ~m *~1117:rr

... v-r 1' -o,, rr-c-r If,:c--u

,r

-4 r11

J>

7. ~

, c1 *- 2

...i:rv. -.:,.r.;;,n, "tic.*

oMrn rz-c-c r,3: N rl>C.

'fl1'C"* C*C*

t11 n i, t* a - ll"'

r1*

r,

-t :r C'I -4 11* C C fl Cc

- v 7 J> Jo m -1r... v,,. A* i! I..J LI

i.* ;,- z 3;

r,, z,. *

-t,:,rnrr Pl/!_,_,

o.Jf' en,,-

-c

,..~....

a,,nun -1 1-

~ -i 11 J,. ~ C: Z S' "Tl,. c r 1r :1 r1..,

~ * -1.* r1, 1 If ;i, Jo

)>

l~ V'

~ _, 0,..

0

!I'-< f',.-.... f.J n* 1**

C. ) -,(*

ac.1:

,.1111J~""'

.,:..,r,,c~

>*..anL l*

,., 1 1*,cc*

-t C" C -

1r ~ Z 1. 71 n _,,.. *

l. ni JJ 1,,,. \\fl] :( ~ J * ("'

r ;

1; n

,.,,,,... 1*1

,., r.

o ;11cc.: 11,n.,l...,*

r* 1.*

-;-,,....,,v J,111111-i;,,,,r,*

< -t

{"',,

fll r,.,

_, r1=,.,

~

?.i::t:r1.*o..

-4 I>,,.

I>

/

~* -,.,

(1 n

0 0

0 Cl...

I

n.

C*

0

( n -

l" 1*

(*,.,

~.,

['

J t19:

z n r-0 V,

C

0,,,

0'1 i'

4

v7 SYS_T~"'- CODE 33,S/0000001-0CUw~l5//

ACCESSION NO.

ULZ~l~~~l~

TITLE.

ul~~:L. '-.:.t..:f.i</,TC,k T"lt:'S, Ur~ ~Ji;.,., C... Ar.;"-CA~i! ~..::~!.L:**!:..,.y N:::-.;.1~ /\\*.:,~

C:J~?AUTH OATE lY?E MEMO AVAIL A6STKACT C.0"'4?0NENT COOE SYSTi;flll CODE.

1 VJ~~lNIA :L:tT~IC & ~O~c.R C~.

l 'i>cC u

L-rR-W/i...~... e1.-<i21 1(: u.~.... ~,. ~cGH)r~,. F:.i:,..::. 1..... ~. :...:1CK!:T

!)u-33i.:

1 'rP~-P*I- *,.;F~-*t.S. T * *=--!.... l'I

(

AVAlLAolLlTY -

N~~ ~U=LlC UOCU~ENT ~~C~. 1717 l"I bT;;.~~T.

ll~HI:,Gl(;N. L:. c.

,O~~~

(Uc., C:.NTS./-':.... c:: -

r.1.* 1;,u,_\\ c,-;~=<l~:

s2.oo>

O*TE UF ~V:Nl - ~~v~:o.

?~W;k L:V~L. -

Ob~.

CA~~~ -

~~T YC1 r..MJwr..i.

\\ollH IHE Ul~ll IN.. :~DE 1. ~~1E.i;.'-:.NCY Lil:.~~L ~1:;.:.c.;..:.T.;;.

lt-T~IP?~U ON Hl~H C~ANK~AS.1:: ~~t~SU~E ~U~IN~ *

~A~~~L ~TA~T TO vf:;;.JFY t,l:.~~L a~c"AtjJ~JTY.

!;'.l:;.L)UhlLJ.:.NT Dl:S.El.. l,;.e,!\\:l;,<!ATO~

Jc=

wA:-

~11..;:u!:.C: ANi.J V~Rlrlc.D OP(k,;.bL.:: ~..-ITl"ll:'11 Tl-I;. H:)u,~ At4L.

AC..O.Jr.. EV:.:CY E.

HOURS lH~k~AFTER.

lnC CAU~E CF THE HIGH CN&~~C~~: P~~~~UW!

OIE~~L 1~1P 1S NOT K~O~N Al l~I:, Tl~E.

T~~ ~~s.N~"~~:. P~~~~U~E

~wlTC~

~~S ~~4~1,...tO ANU ~wllC.~ ACTION ~AS FOJ~~ lW

~c. ~11~I~

TOLE...,Al'.:C::.

-=uUT 4~..,.Jl..lkS L.:.T;>..:o Tt-i:.

1,.,..,.1;;,:,tL "'i:.~..:;;..A1~...

,.,..5 SATJSF:.cr;.,;,.J~Y r<:..!.T:..~1:.:.i:.> At;:. :.,;.~1..s.=c~.., U..,:.;;;...31..::.:.Fr::..:. :,.:.11~-'Yl,.iC.

AL.L $UW v~ l L,L,.. :.rc.::

,<~... w l" ~ i.,,:.NT$.

T !"'I~ V ~ ~i.,:J~ !"It.:.. c:L::. !I.

C:)!'. TACT:;.:;

,:.t.:.) F~~,1-.~i-(

JNvE.:::T1c.:..11c11o ct= l:-:E p;...::-L.c."' 1~ L-.:1,~~ c~11-1:..,uc1u.,.

£11;.:i, J r.. c-c,~G 1 :\\.=5'.1,... l c.. r~AL cwr-,:-1..::i l I u:-..

c::-f:Me"u '-'c.'"~~ATOR ~YS t. t.(1r..l,..1..1L.~

33/S/0000001-C~OOOl~//

ACCES~JON NO*

TITLE AUTH AVAIL AcSTr.tACT

,~=>i:iNE.NT COOE.

SYSTE"'I C.OOE ACCESSIOl'lf lJTL:

.J~?AI.JTl"i

a.TE TY~::

,.E.,.0

.v4II..

NO.

0 OZ C 1 !)2 ; ::2 C.OOL.P,.:O.i;.:.T!:...: Lll\\:E lU WH.:.::::L. !,~1-*El.:=S.-<L!:." L::.A"',~ ~1 "'::::PTl-i ~~*-t.

l vJ;..C,lf',;lA :.Lt:.t.JF.J~ C. ~;J~L;. cc ** i..1c1-:a.:o:,:.>.

'I/A 1 ~7':-

a*

2 µGs. L"1i<

ILl'Lc..: 79-(.)C:,4/1,,,jL-v lu l'~iocC. i;FFlC~ l"rr" J t. c.o

.~l,1;.;*,.*

11 *

.. H.INE 1. J<,7t;. uL.:C.i-.cT ::c,-.;;.;;.L. T'r;.:;:--..,.;. ~.i=,.-.. c.~l **

A~-SlCJ"-r.. & *t.t,STC.R AVAlL:.clLlTY -

N~C. PU,$LlC. l)C,"L,l\\':,1",;T

.... o,_,M. 171i H ::.r.. E:ZT.

llt'A!:>HJf,.,._li,,r... ;.,. C.*

c:w;~:,

('-'.;*. CE:11,;T::,/1-...,:;.:_: -

,*,J:.l,.,IJ,., C.!-\\.:.;..1.,;:

~z.c..u>

OAT~ UF c~c~T -

O~Q~?~.

~~~th L~V;L -

U~~~.

C~u~! -

..=:s:.

Tr-.k:A:.1;0 cwr~~:cT JON.

. :;,/...i~C,.., c..:;~-.1..1:-.1..,,.~Tt."" L..i." 1;: T.J lr-.=

~L,,..:.... ~~;.,,C.t.""!.. Ci" 1~;;.. Jr, ~J~!:oi:.L. :..~vc.;..;.;;*~:.;

._: ..~-~'"' :,T.:. 1,..,,-e~t.:,:;.:;,

Cu:..:~,.. C.Tlu~, hL.,.IUl~lNC, 1-,: lM IJl~:..::.i.. 1:,..;; !.*:.Ci...:.,..:;.;

lt.(.)::":.;....o.~:..::..

c:_,..~:;:._.u!:~.1..E~.. c:.:. L,:*.Jlc.;,:.n.;c:. 1~ T!"'I:. ;;.VtJL.... :.lL.liY C'lr u.=~ ~IT; PC'11.E~

A"-C..

Tt-.:. lJ ~l :..~L~ C-r:.h.i:.;:..,:_it'i.?*

Tr-:~:.r.:. -~:. ;~;_

(..E.,*.::1"'\\ JC Iai:?1.JC.:.TH.*"ll!.*.

Tri.:. c..;.u:,! C~u!..~ ~.:.JT==

~.. tcl::.:..:..Y l::.T::..... :,.J!'.:;.~.

1 J~ ~:L.T lr-,Al Tr+-

L.E~KA(;.::. WA~ ;.-1..:

T;:; 1:-,c..:i-.,s:>... !::l; i.L.:.-'Nll'~~* :;;::

Tl-IN~:.... ~.:.r.:...

1,.. ~vFi"Jt.,::-..1 10....:.Ll"'u CF lhi..: c..o~.: *.::.c1:n:-,, :.1,,..,::. 11*.,=

c,;: -l~l~l ALL,;.1 JUt~.

i-<:.s:>.:.lk ;:.;..~C.t;.C.:u;...::. v,.:.!",:

i:;.~~r.11::.;...,.*iP::, CL.:t,*:';;.)

T1-;.:c.c.u~. F-;w:.:!:>u;:.E 1 :..i:.1:..:.i ~1;;,:., _..,,..~:.., iH~;:.:.,.*~..,.,_

11.. -.,-n:.:.:~--

11....: :.x>.-.,,1.... i.~.,: lTT J!',;1,a~

EE-:"'::.s.~ c.i:o..ei-l.r.To;.. :..v~ L. cc~~,:.wL.:.

0..,, C. 1 ~' cu..

L,J:.~::.~ C..::~..::1'A:.T~~ li:i:J'"'~ [.;1.J,..!!'nJ A ;,:.,1,t,1,;.:.;,_ !;.lA-<i.. T ;~..,::CT-t :.~~: *.:..

Vl~wlSla E... ~~T~lC L, ~u*~" ~~.

1 c;,*,...

~

~T" */t-r~ 71;.-l~l 1-:, u.s. f\\-c~. "'~C:.?:,:. ~. ~CT Ct"* 1-;-;. :.,:;~.(.*~=~

,.:,-~.;.to, 1Y=:-,-"""' *.. F(- *. E.~T. ~=--~+.-

.;.,.:.;:...,1"'-L-,:~-,-~~7 AV.;.JL.".::L.11'1' -

"liocC 1-1,J:;..I~ i..O.:...,..::,i "".J~r,.

171-, :-: ~i:.:~.:.T*

..t "'~ t i 1 ~.(; 1 ~ :,~ :.

C. *,.:, :, ::. !-

t '- ~

/ f;,..;. '- :, --

.- 1 *

l :.i u ~-* C,,..:. ;, \\a,...

.. ~ * ~.. '

..;A1: :.;F :.v:.:'.*1 -

C,,2L7~ *

..,~we.~ ~:.v::.. -

w._..:,;..

(......J~:.

,,.i..;.

i,-.

c *-*

Fl~r:.~.

11i1!-1 T!-::, ~*.!i !!'. flr,O..,!... :.*-..:."'~;*.:!' ~;:.:..:..~ c..~*-~:"'~i::-9' r,:;.,.:J:...:.,

.;,,,1-1.;.J~.'~;..

, *.,..:*UA'- ~=-~i,_ v==1~Y ~=:,,.:...:.:l~lTY.

.,l~:.,E:. r:,.~,.,:.;.;,,.i:,~

1~-*-~:-_1:.1:.~T fllt:.*.:>i'-... 'T:..,

.:.~ _:.

~-T,~-=,:..,:"7_= l-***

,**: :.~:..~~--

~:.*:::~.;.T:.:.

1-...l;...

,i~.

,... ~-':,....,~:.~

T;:.

?-..:... :=

C.:...... :>.:. _. :-, ;. *.

~ -.;.: w ~,,,,,; :_,:. ~ ! ~.. : 1 F T ~ ~ ~ -

~ :..

-: :_ 1 ~ :. *

... -..: :- ~

!~ :;,::*.:. :_...,-::_~

J*... :,::.,Ji._~l:!-

T:*.:*:_,..,.:... ;. i'**~..-.:T~.::.~

, _ -:. ~.:; :. "" "'!

~ ~ ;. ;.. ! **1 l *~,;. 1., T * -~

~ : ~ : :. "' - F : - 7 ~ -.~

I<

e

\\

) e 33/5/0000001-ooonu1~//

~CCE~SlON NC.

C~~~l~~,~~

7 flTL.E

nL!.~L. GU*~~.:.HJ"' F-~:..: CO~L.1NG !>Y~Tt1, 14,:,y ;:. I~-~Ur-i*lO:.J:"-1.:.1

O~PAUTH

>t. TE rYPc

~EIWIO

.\\V~lL N~ 1 H A."-r..i-I Vl"wJr..lA. :L.~~T~JC ~ Pu*~~ CO.

... 7~

Q 1-11.:

llf/L.EF.. 7c;;-11c.:, 1;J u.~. 11o;.:c. ~:.1.,IC*~,. ::.a;:,,4. I".,7is. o:c,<.::T

~v-3~~

TY?;-... WF.: *

.. '.F.:.-~.e,S T

A:::--!**

(.Qt,, 1~~L.--02707e AVAH.Af::lL.lTY -

NR<.. ;..1,,.1::;L.l~ uo~u~~!:.1'1,,1 ;..c.,oi..:.

171*,,., !:.T~~:.,

11r ~t-: I NC, T!.:~ I.'.C

205~:,

l u.::

/P.:.~:: -

1-, li'.: Jl*'.UM

<. t-::.... *1.o:.

Jo~* 0 v)

OATE

~~ tV~Nl -

0~1~7¥. ~~-iR L.:VEL -

u~~~-

~4J$-

o~~l"N fkR::J~.

"~?C;.J C,lSCOV~Ri:D THl.l M-~~lc.NT li:;,i-.;,;.,:;i,,:1-1v.. ::.:. kAN~::::. COULD C~l~T ~HL~E T"t oa~JGN Ct.?A~lL.llY OF Th:. ~J~~EL. ~c.NC~Al~~

F~~

COOL INC. ~Y~1 ~I'! WOUL.0 cE :.>lCE:OE:.D.:.N:J C:;o:..J:\\.~,-".#.'f t.-c lt..;~UFFlCJcr-il

t::.ECAUS~,~:... Pa..:i1u:... E. c.)(11.:i:.W.~~ ""i:. t...iul L.lie.EL.Y A:-.:D Tnc. ::>l:~t-L ~;~IERAT.:...:~ hi.Ve Qj,JE.~,.1c.u :..,n1:::.F-.:.<..HJ.;.iLY,,..~c**..h~HCIUT Tl-II:. SU~Mt". 1HE fl.N

~LI.~~~ ~.r.Y NOT ~,:.v~

T~~ p~~~c~ ~lTCH

~tTTING to P~:v1oe TH~ N~C~t~A~Y C~CL1N~ F~W l"' ~1u~

RA~~~ ~F Ti:".Pc~ATU~ES. lrt.t.T CAI'. C,C(.1.,;~ ::.,u*dNG lHt YE"-"*

.. d!;.Cl.,;:;.t,.J.Jr.;:: :r.*I11"'l

<T

.... ~~~,:lk...J..a:l; --1.bl ~

~C.:if.i.f..~~ T O iJ !; 1 E.;.. "'* 1 r.!:::.

~ ~:, 0 LI.IT I ~ ~ !:,

l ~ 1.., :

M~ONc.NT COCJf:

>YST:.M C.ODE t...:.O L. 1 ~~~ t"~,O f,L: 1"!.

HLCi~E '-1-~L.i.,..-f:, "S CE-c.1o:;,;c. w.:l'.:,.;.A10k :;.vs & CC*l'.:T~C:...5 33/S/0000001-00~vOlS//

~

,ccESS10N NO.

Ov~c1s11~2

':"ITLE OJ~~-~L G.:.~~:.... "T""-

c.:..11~... 1~~ :-.ui 1:STE:, "'M~r. t..b~l'l"~c..:.1 :.:,~1H A°"""A 1

o~PAUTH VlR~lNlA ~LlCT;:;.Jc

~ ~CRC~ co.

"l?uNENT CODE iYST: M C:IDC l 97C..

u

Ll;.. w/L.e.k 74=--v(;.o TO L:.~. 1\\.-<C* k"~Glul'; c.*.JUL,r,. l',7v. DuCi<c.T s'"-;;~o. 1y;;,E,-F.-...,..,Fc.,-11*:~1. A.:--!,+*

(.u!,Ji<L)L.--v,*c...:.1.">:

AVAlL.~~lLllY -

h~C ~U~L.lC ~0(.U~:.~l kJ~M. 171~ H ST~~~T.

wAS.t-ilN.7al... ho l,.c. Z~:5:.:.::-.

(C,,::

/',-*~~.:. -- 1:,~11.:..,... c:-...c..... '":. t.~.i,;C)

O~TE ~F =~~NT -

uc2~1~.

~~PE~ L~V~L -

~~~~- c.:.u~e -

O!F~:11vr P~Cl:t.,U;:;,!:~.

(.i,..JU~E.:th l':-7':io lt-,~

~ ~... y ~u... vf: lL.L.:.;,.C:. OF 11-1::

C. "':r ~c;;;, r.: (.;'Y C.>l t: S E.L

~~.... ::: """ 1 :,;..

LSI. 'I T t:.*, 1:. ~ E 1-C.::.:::.. :,~c-rt-i::

!,I.,;.. V:. 1 :..L l.:"\\.C:

l~l~~VAL +~~E.

M~~~~f:"'1 10 LiC~~S::. ~1,.T~~ ~/14/7, A~~=~

S.Ui-<Vc.1:..L.Al,C~ ::.tt::.:ul::C:.M::!'IT '4.t-.* 1.1.;;. *.=.

,.... 11"l~ r;;.c11

~~I=';(...

1'"11:

C.l"iAN~i::. v..:.::. ~;;C.;lVEi..i.C.l 1':>RJH /.1',;l',,A

-1:0lJ;,.,I\\: ::**. o/;r:,/7":'o :::;r.::::tl~C.-

T,.,::_

F 1.:: !. T ~:., "v:: l L.L. I. :..c i::.

l :" 1:. ~ v.c. L. +.::. °' *

,;. i;. I ;J L 1 C r:. ~ 7 l l ~-; -f 5 }

RE.V1St~ 1.:,. Jrs;C;.,R;.,:,,<.. Tc. 11~ Ct.A!',;GE

.r.:,;:,;

T..,::,1 ;::,.:-..F~-t**~;,;.

S,S.115r:AC..1.j;.y.

~~TTRY-c,.. 11:::.,;..JE~

~ ~~A~wi::.~~

EL-~~~~~ ~c.h;~A10~

~y~ L C~~T~:...LS

~3/S10000001-ououu151/

~c.~:!:iS10N NC.

-1 TL.E.

_i~i='AUlH

,ATE ry::i:

<1E..,u

.VAIL.

.~ST,...ACl u "' u 1 : 1 1 C., l L,,l=.:=>>t:.L C.:,!1,:,;.:AT:i;..;

T.;; lF-$ F:..,;:;,

Nl.;

/1.?~... ~:.~.1

.;1,.,S,: ':": 4i r.:::;.ri-, -"-~'.A l

Vl~~i~IA aL~cr;..1~ ~ ~~*E"'< C.:J.

l r;,7.;.

C, L.Tr<

d/L.:r: 71:--,,je: l.:J :..;.::,. -.;~C..

..: .,.:;;.-:..: ~'*

.:.... 1.: Clo l':-i*c;. :::.:l.c~"T

~'--;;.3c.. lY... ::.-~-~. 1-*F~--, *.:s1.... :.--:.+,;

c.;~,1~:iL..--J,.:.:c..-

~v.i.lL.t.t;l:..llY -

,,;;;...:. ~:.,:,.:L.l~ i.1:JC.1.*",::.T ;.n;..i-h l7li,.., ~1;..:::..:::1.

IIA~t-:J,.C,1 ;.:I\\, C,..~. 2J':)!:,:,*

l.,.;~

/,-'~1.,~ --

~-~l~,i:.;1,,;:,,,

( ~.,:."_.;: ;,.;,;,: )

~-:..1:

~~- :v:.f\\'T -

Ci'.J-1'='*

,:,~-.:P\\ L.::\\I::.: -

=.,~.!~ ** '-.:...;~,- -

=T l)~i=~"l'!-~.

C,""kl"'-'~ 1~: ~=..... ~~c*,-~-,*~~ t.JF 1-.:...T-:*~~. :r.*i::~~=*-:,

~lc5,a.;.., e,_..,::°",:.'!:..,..(

11"'1 1:Clr'~*:..:., r-:_,;.

--..~.:.,..f' QP\\~;.T ~~,:.;... *.,: **

i*.,: :J

!Jl:!.,~'-

,:.:_ *rL..:..

A~ C,:'F-~l (~

w.. *,,_.~~ *-:-

.,,;;,.!'-,: ..~~;...

ir**-*:...:..,1~:::_"r

.-~T~~ l~E t:-.c.lLJc~i.

.Ji~: :>.:!..

1~ e.,-~ P\\.;~i,:..;.,cr;:..*,'\\*,._

1-:;-::.~:.. ;...:.S

,_

~,-.: _,.er *. ;__. v.11... 1 r.;-.; ?""'w~:L:a..*5 i::'\\.-.~U*,l:0~:.J.

..,i:.~~.L 1.J

,.,.... ~.:..~~,:;

Sl.:-~ 1;.:_~

i:,.

V:.~ lFT ~,-,;_"'.:.:iL.liY.

,, _*.*: ;.:,\\wo~1"-.. ~'f

.:..i,.;~:_t.~~ *.:: ~:.:.--.:~

11~:., :..?..:;**.,~':'::..-* ;.~i:.,.Jl::.S:.~

.... -.~.:."';...1~,-,

1-: :;-1,."':~:. -.

~.. ~;....:., :_-1:.-.......

.:_ ~,:.. : '

~.. -,:: :_* "'\\:-

.;. ~ 1 ~ :-.

i -,,:. f e

-: [. 1 ' I j !,,,. ~ ;.

, A ! ~ ".,.:

- ~ ~ *

r,.""; "'-i

: -;........ ! ~-:~*!!,.:I:.,,~._.,,._

,:..~ :.. :,-.:!-1 : :": :*..

~~-~~-~~ ~~-~~-,~~ ~*~ ~ ~0~~,~--~

~.

~*-" **-*-** '~--.*-*'******~*~*A..,.:-.'

e e

. ~

3/b/~~00001-U~u~ul~//

CESSION NO.

oo;,1wy~2-TlTL.c.

T~;..... :1;,,1;..'r JS.....:. ;.::'A_::,.!, L.:.i-T n:-~

lu CO~~AUTH OATE.

TYPE

~:.MO AVAIL

.t.a~TRAC:T

OMPOl'~l:NT CODE S.Y S Tc M CODE NL.ik 1 l"I At,;.:*.I.

1 VI~~l~I~ :L~~T~lC £ PO*~~ CLJ.

l 'i17~*

u L1'r.t W/LE.:.C 7':-0~ TO u.~. i.. Rc *...-t... 1es:,; 2. M.:.Y 1*,-.

1.;.*,'!I'. :,i:,c...... L,

~o-~~1.-

l 'r?~ -PwS:-

r-.Fc..----~!:t T

A~--~*:..

~u,.. 1 "~L--C, t.:.~*I.J AVAlL..:.clL.lTY -

... ~c tJUt:L.lC. uCJC.ll"cNl ;.cL,C,I"* 1,1*,,.. :..1..c~:::.,.

11,:~t-fll~GTI.II.. c,.c *.i:.C.5~~. ((;t /~.i.C,E: -- Mlr... 11.-.i.;.., C.t!l.1-.'-~ :.~.oc, DATE Cf-

!:VEN I -

C.f.t/~79. PC'ir.t:.;.. L.c.'.,~L. -

0',1~... C..:.L*S-c. -

CON~T~UCTIO~ iRRO~. T~~~U~ARY I~ON co~~t~ U~ACES -~k~

~l~~ovt~L~ ~~ THE E~HAu~, UUC.TI~G CF THE DJ~~~L ~;NE.. Al~~

COOL.IN~ FAN~.

Tr,~~E tJP<AC;S w:,;.~ TAC."'

~~~C*C:.C. ~N Tnc. "--~.i.t.~*::.L.

STC~L. TC ~IC lN FI.Q~lCATiON OF Tr,~ ~UCl!N~ *

.:~~~:~Ut~CES

~E~~

LlMlTt:.::> SJNCI: Tl-iE~; TACK *:L.t.1!. ~=... E 11.::.?:C.1.:.~ H...) r(JU...... 10 r~E SECU~t.

ar.c1.c~s wE~E MJS1A~t~LY L~FT Il'lo µLACE AFl[~ c~~PL.~11UN OF C,uCllt,;G Fl.oklCATlON.

A!'IIG~t:.

lr,;QI',; brcAC~S i.c;..e.. oii:.MOVE::D.

BLOWE re ~Lei-~;.:s EE-~MaRG GcN~~AlO~ ~YS & ~0~1;..oL.S S3/S/0000001-000U015//

1 1

CC~S~JON NO.

Oul01474r.:

TllL.E.

LIIc:~i:L. c;;.N~P.IHJ...: FAIL& TC, i.::..t.~H !;P:C:.~,

ir-. k:":Ul*!.. ~r-TJ,.*.;. AT ~~c.r-T~

=tl.-lPAUTH jA TE TYPE "IE "40 6.VAIL Al',;NJ.. 1 VI~~ll'lolA ~~E~T~lC &

~~~t~ CO.

1 ~7C,,

Q LTF. llr/1..cl.. 7C,,-<.il9 10 u.~. N~C. "~~JC::"I. ~. fol'A-. vr.. 1... 7~. :;r.,:o<~l so-~;:s!-:.* TYP::.-?.,..R. "'.i=c..--**c:.:>T. i.:.--~+.

c:it.. 1 hLJL.--.:.,:...:.1.1:s AV-IL.~blLlTY -

N~C ~U~LJC ~ocu~~NT k~U~. 1717 ~ &T~~~T.

MASt-,JNC.T:Jr,. L,;.C. ~C:>=~*

(C,:, /~I-C-!.. -- r"lld.. UI.\\ Ct-,.C.i..i..,: !:_.cc>

D~TE UF CVE~l -

0~1~1,. ~uw!~ L:VZL -

~,7L.

c~~~~ -

~~,

O~lE~~l~c:~.

~~lL~ ~~~Fo~~lNG s~~VtJL.L.~~~~ ~E~uI~=M~~T 0~,.~.

3.c.1.1. tr,.;~;..::;El'loCY i)l:.S:L G;:11.i:;;..ATu~ 1~ C,J.., l'.01 1...l"~~ u;J T:*.;.c,:,

R~M JI',;,~~ ~=~Ul~EU lU ~~c.

,~1:. Pk~CE~U~~ ~~vJl~~s r~AT ~~TH Olc.SEL.. y.;l.::... AfO~S :,; ;J(.):..:AbL;.

A PL.A\\J:,l:iL.C: 1,.l..\\..l~.:. ;.::.,y n.:.vt:. ::-::N L~W AN~l~~T AJ~

T~~~~~ATu~C ALl~~UC..~ ~J~~JCJ~~T u~TA

~~~ ~~T lo\\KE.N Tn cur,,.FJ~M TriJ:,.

li-,E ~:.:.. r_;.."'l;J~

"AA...1 P,"P.'r.;')1.:.1.:.L.Y i:.:5TA~l~v At.::J 11 k::."Ct-i:.:> o;o.:,... Pr~ 11, i:..f. l::-t:.C. *.

T~t.:.:ir-..:,IT !C.l,,~ Al 11-1: Tl"=

0~ ~I~Sl $TA~T

~=~~ N0T ~:~h~~U"--*QLE.

~'.o4PuNcNT COLJE ENCJ"';:.-:.r,;Gl"-:.~.INl:r.r,AL. CC.lll'=l::::.T1.:;,...,

.YST:.~ CODE e.c.-:.)o\\:~G C..:t-::.~.ITQ;::;: ~YS l, C:JI.T:...:;1..~

~3/~/0000001-000~0IS//

1,

,cc!:S5lCN' NQ.

OC.lLtl47!~c rl"T"L.E 01'.. r.,u;;FL.L.'-:~ r-.JT 5>1:J~v.!CALi..Y

~u~....,JF,;l 1-*...:,1 ~..., :::::,

.:. l

.J~P.IUTH

)ATE fYPE

.. ::.MO IVAJL.

N.:.-;. 11'1 ANl'lo.:..

1 Vl~~I~lA ~L::.CT~IC.

~ P~~~~ C~.

1 c;7c,

~

~~ */l..t:.;:;, 7.,,-vv!:> l:; u.s. r,~C. ~.::.:.I:J"" ~. t-::c.: 1.:. l':iS *. )::,*:,:1 Sv-::.:;1:. TY?:.-~w;;;. !*l-..,-*:~T. A:.:--:.,+..

,::,*,f,..iJL--~~*::..:.:.,

.&IIAl:,.A;J:..lTY - "::.c. ;;..1,,1;.;.LlC ;,c..cu~.::.Nl,...:,.:,.... 111; l"'i ~,::.~:.T.

-AS~J~~TON ~.C.

~~~~~. (~c /;;..~:, --

~l~l~~~ C.~~~~: l~.~~l J~l= ~F ::."'C" Ul.24>>7~. ;,.;.w:~ 1..:v~L. -

,..;

. Cr.-~:.:. -

..1:::S!...,,

E~~,:;~.

ll *AS :.it:.T;...,.,.,r...:..,,~.:.,

T~~ 1, *.Jf'f1...;.;..s F.,~ r~i: ~,=..:.;..;;.*.=y 01:~:L.. "'~r,..E_;....:.Tc,..;;5 A;..::.

l'l..::)i

EI.;.~-~iC.ALL'r

~..,.. ;.:.,;..1::.>,-;~;..; :-.i::.::,,;._;:

?~~1:~l~j ~~ ~E~~l~~j.

F~lLu;..~ uF THE ~'"'~~L..c~ 1.~UL~ ~~~~l:LY

~:.s1;.: JCT T!-1c. FU::111, :Ji" :ll.l"i.:l.v~T 1-... ~:.,

Ai.;.:.:~:~:.T?i,.~ ;..1:.::-=~-

l!!:;

CAU~~

~~~ F~l~~~C 1~ ~!l~~lC~~~y ~u~~u~T ~~ ~!SS1~! -'~=,~:T

~~~

~l~S~~ !~M~~~T ~UFf~~~::, ~~~INi.., L~'~Tk~(ll~~.

T~;

1~~:~:~1~

c..:..*""~=..:.r1**=- -:.C.TJ:,:,... ;.~ y~.,=-

~~a.*.:..,\\l~l-

~F Tn::. :.ii..,:~F~:-_:..e~.

r;,.:,1-... :~=!*..;::

.:c.:."1£.-~ ""-tf. ~.-:.1~~\\a u*i.:...:..~T;.,... ir *. 1;.,, :.;:7:.""'i.. l1~:.

rnc. ~Ji\\.~~ c:~";...,iiv:.

ACT!:,;!" **

_,..e, 1:.:.-:.*..., I~.:$.1 r~ 1: ;.*:.~~ c.::r.:=i..:~i 1,.;~.

E~-=Y~... ~ ~~r~::.-<~10'<

~,Y!::

£.

~~~1;...._:~.:.

~~/S/:OO~OOl--.vw~~:~//

!~

~c:~~10, N~.

~;.u1~7~~-

... -=

' *. ~ - --..._:.

....,::.~..;.:.il=*--. ;.~,w,;..-:-~

-- =:..:.,_.: ~

'11... _J*.:.:.. :.:.:..-..;.~... ic. :,, -:..... :.,.. :=..,. * - *--*-**.*

-: =

I

-- --.., - _.._ ______ --' --*** ---- **-.. _..,__. - ~- -**--~*.

-- *-*--.*.*.a*.* -

,~~0000001-00~0~1:>//

~ 1 :s

. ] i:I "TYP~

M:.MCJ 1...,:.. L.1" TC: t,,;..:C.

C!Ft-i'-i..

C..F l

t:.

r.* io.!:.Gi:.,:.

11 ** JL.Y 1~.-. l'.-77 0

DOC,..:1 !;t.-~:\\4>* TYl--'c.--~wk. p*FC--*~:::51 ** Ai;:.--::,TLJ"-~ !, 1a:.:--::.l':-.

AVAlL AVAlL..e.l::lLllY

~ N~C l,l.i::.SL.lC ::.,::,c:.;.** ::.NT ;...:iur,;,

l?l""/ H ~1-<L~T.

WA5.t-!l:...Glt:;!'11.

i:,. c.

2C:,4:;.

(1.,e C.:Nl!;,/,;,,.c.::. -

j.oJl,11*:u~, c..n.:.;..u[.

~.;. *.:,oJ A~ST~ACT O~lc LF fVCNT -

OeC~77.

P~-~~ L.~V~L -

~~.

CAU!~ -

D;.SlG~

C,~FlCl.::1':C..Ya lN o;...c,:;:.. Tu C.C>,.,.;;,Ly *l1H rt!:::.<..LIL*l(,i-T ;..,,;:.,lil::*:, c.~,

THI:. :>E~l\\o:1'-. (Jr THE. c..CJ1,1;:.r1L. 1-1... cu1Tr!Y FuJ:.

lt-:c. i:::."";...... i..Nt, Ll:.~;:.L

~l;_:,...;.~... Ttli-c5.

t-1.o.:J TC, i::::.

~a.v1S.c:::::. fKLII.~

TH!-. r:~lC,1'-iA~ LT L.lC~r.::.~.:-

0[;.~l~N.

AL.l~GU~~ C.t-..e.NC.E!;, HA;., c.:::.r..

f,;.. r,L, A ;..:;Vli:::."'

OF' TM!:

C.O~Tl..uL. ClkC.UlT h.EV~ALcL> lt-lAT lr-1:::

Fli:.L.LJ FAlL.u.-*.E 1.;1;., *.:.!, -..::T SYPAS~~~ ~U~IN~ A~

=~~~G~~CY oµ:.:~AllOh.

,~c ~y~~ss ~~s ~~2~~

Tl-(1: v11LJTY t-i:~L.S ltlJ..T 1Hl~ 1::. r.uT A ~:.... n~TAr::\\L~ U\\.L.U;..;...;r.c.~

~J;C..~U~.E TH::: ioc'Vl!:,lut,,; 111.t..::,

N::.CE.::,::.lTATI:...> ~y A C,,-,.1>NC.~

ll\\. r..~c. !:.lJ..Ff" PCS l T lC"N.

COMPONENT CODE e~.:(.IN~-c~C.l"'L.S,INTf~N~L C.Q*(:\\jSl JON SYST~M coo~

EE-~~~~G ~L... ~RJ..TOR SYS L CU~J~~LS 33/S/0000001-000uOl~//

14 ACC:SSlCiN NO.

TI TI. *.E c::;..?AUT~

C,A T::

TYP:

~EMO AVAIL

OMPONE.NT COLlf::

iYSTEi"\\ COOE 00L0127104 o~::.l~~

c~~o~ FOU~~ lN Ull~~L. ~~N~~ATO~ C~I\\.T~~L. C.lkC.~lT ~,

~=~1~

Ar-.;,t.

l L 2 Vl~Gl~l~ tL.cCT~JC t PUw~" C.O., ~ICH~81\\.~,

VA 1o;77 a

1 µ,:., LT;. TO NRC OFr-lCE C.:F l

[, ;., RE:CJCI\\: 11,.JUt.!..:.,c,:, 1.;.-17.

DOC.~:T ::.5C-~~/~3~, TYP:--P~~. ~FG--w;~l., ~~--ST~NE i ft~~~l;~

A... AlL.At:llL.ITY -

No<C. ;.-,w~lC. OOCuMt:.NT RULJ'-\\,

1717 t-,

.T.. £.:T, WA.S.Hlr-.G10Ne o. c.

~V~4t, h,.::. C.~"-TS/PAG!; -

,..l!'..l...,1.,;~

CM.... ::.Gc S.2.Cu)

~Al~ wF ~v~r-.T -

052777.

µc*~k L~V~L. -

r-.~.

c~u~~ -

~E~l~~

DlFlC.l~NCY.

A Ul~lGN t:.kMO~ *h~ ~OUN~ I~ lHC

~M;~~~~CY Gl~~EL C.~N~RAlO~ CChTRUL. Cl~CUll DU~J~~ A Cl~C.ull ANALY~J::,.

~Y~A!SlN~

Of' THE N;..CE~~,<y l~lF-c1;..cu11s ~AS, NC1 l:',;!;:.Uk~U FllL.L.D"' I:.(, ;.

RE-t:NErcC.lZAT 10... Or-lHE L~C::kG:NC.Y 1:..u$ AfTE",=.!\\,

.:r-~t.:j..;G[r... cY r..i1 :~E:..

ST~~T VlA Uh~~~~OLTAC.~ ~y TH~ A~UlllO~ ~F ~L.i:::.~lklCAL.

l~lE~L.OL~S H:Tu THE Cur,,T:.?::l.. CIL.~UlTS.

E~61NE-:~~l~~S.1Nl~~N/..L.,oM~U~1JCN f.c.-L:.M... kb '>>;h,~i..:~101< ::,y~ i C..J="11i<..:;L.$

,:;3/~/0000001-000vO-l 5/,t l ~

AC.=ESS10N NO.

OCZU1147~~

TlT~E.

ll;*;lr~u ":OLAY£ ON ~JE.~f:.L \\i:~"'Er\\.,:.Tw...:!:i LJ::~:,l!VE

~\\1

,:..Jr'l.1~

.: -..,!'\\.,-

O~PAUTH

Al; TY: :>:

-4EMO 4VA1L.

.~ 2 Vl~(.l"J,;. !;L.;: .=Ti-.:IC &,.>O*:;:;: Cu., ;;clCt-!1-::,~;~,.

V/..

l.;,7e,

~

1 P~. Ll;::: */";::iT T::,

-.:RC. OF~JC::. ;)FI t,

~........ y 21::* 1.,.;*t, ;... :i~,~.~-

~""*-~3.:,/~:,t.:1, TY~c.-~\\..t<* ~r'lJ----~;.T. *

O:--::Tl.H4-

\\:f::.,_~~i=.-..

A._.AlL.:.~l~lTY -

~R~ Pu~L.IC G~~~~~~T k~~4* Jill~ ~1~E~T.

~~MJ:"G1~1t....... c..

~o~-~

(.;,,= C.;:-..l;./~A.:.~ -

r*1~.1*~.... 1,

_:,-,,:.,.(.;

1,,. Ou l c..;.u~~ -

i.;~:-.iuF:.~1..:i..::.l.i Jr,1.F-~;.;~E;:;;LY.

.L1=.1: ..:~

1-.:--.; ~~:::...:., 1:1;*,AL 1:-::.i.)1' Tt.~

~*~:;.:C,;...!'IC."1' C!~$;L l:.:~:t:..:AT:,.....!'-.

11.... ~ S:wu"-:J Th.t.T :...:'-:: ::I'-

l~::.

1 J,'l.,.i:. :,,:~AY.:. :.~"-.::,ci :ir-:~:.TII\\...:.:.1 T~.~ ~:,::.:;.:.CT 1 p*.;.

- ,i..... ~.:..;...,,.*.J :**.' ll"'l~~::

I*::,;,;,:1.,;, *..:.*11c

1v::...:.J-L; T 1~:E**~ F(.:"'

~-1.... :C'T Cl.,.,rllt°'=~T 8~:,;:~ATlUN *c"': r-.uT ~..:..:-...:i.;r*c.iu... ~-

~,,e,~=*,LY :.r:-.-1 _...:,,.,,.._:; !"',=~

~ULD

,~~..:.J~

~~~~&U~: ~:c.~~~,;.~y T~

~~~~ll c~~~~~, 1;~1~s (Jr~:;.,.:. Tl :;r,.

..:.i.. L.

,jF 11-i: . ::.:

i 1,-* 1,,-..,

L*;..; t l !.,

l :;i ',c.

,H_ :;..'-.:.;:.:: :,.

T"'i::

~:,r:>~A..:-~.*-:-"T!:., A~: U:'"4.:.,:.. \\J~i'*'-' ::>,~...,P i:..~ll*,~

?;.,.~~..:

1i-:

l'-~T:..~~;.11:.;i"',.

e

... ---*-*** ~--- *---* --- -*-- ---*.. *- ----

. -- *-*** - -------~

LICENSEE EVENT REPORT e

_ENCLOSURE 7 (Table 2 1978)

CONTROLBLOCK: ~'~--~__..~._----'!!IC!)

I 9

(PLEASE PAINT OR TYPE ALL REQUIRED INFORMATION) 7 1v !A!N !A !s ! 1 !@lo to I-lo !o !o !o !o I -I ol o!(DI 4! 1! 1! 1! 11©1 I I© I

9 LICENSEE CODE 1'

15 LICENSE NUMBER

"!!5 26 LICENSE TYPE JO 57 CAT 58 CON'T

[ilIJ 7

ii

~~ l.l..Kvl o I l I O I o I o 13 13 1 s 101 11 11 J ! o I 11 a I@ I 11 21 11 3 ! 11 a !@

60 61 DOCKET NUMBER 613 19 EVENT DATE 74 75 REPORT DATE BO EVENT DESCRIPTION ANO PROBABLE CONSEQUENCES@

!The architect engineer informed station personnel that the emergency diesel generator

[2]!] I battery racks were improperly installed as per seismic design drawings..

Conective

~

l_!IIOdifications required alternate removal of the lJ and lH diesel generators from

((I[] Lservice.

This event is reportable pursuant to Specifications 6.9.1.8.i arid 6.9.1.9.b. J

(())] tNoadverse consequences are expected.

((II)

((IlJ 7

8 9 mil 7

8 SYSTEM

.CODE IE IE I@

9 10 CAUSE CAUSE CODE SUBCOOE COMPONENT CODE lLJ@ lLJ@) lslulPlolRIII@

11 12 13 18 SEQUENTIAL OCCURRENCE r.:;-.

LER!RO LVENT YEAR REPORT NO.

COOE

\\!.'..I REPORT 1, I a I I I l 1 I 21 st I..,......,

I oI 11 NUMBER 21 22 2:1 24

26 27 28 29 COMP.

SUBCOOE W

19 REPORT TYPE l.!..J 30 VALVE SUBCOOE w@

20 1=l 31 IIEVISION NO. w 32 80 ACTION FUTURE EFFECT SHUTDOWN t.:::\\

ATTACHMENT NPR!)..I TAKEN ACTION ON l'LANT METHOD HOURS ~ SUBMITTED FORM !>UB.

AAIMECOMP.

SUPPLIER COMP0"4ENT MANUFAc:n.JREFI

~lLl@) l!..J@

ILl to IQ 10 10 I W@ W@)

3J 34 35 36 37 40

41 42 W I E I 3 ! 5 I 5 I CAUSE DESCRIPTION AND CORRECTIVE ACTIONS @

43 44 47

[ill] !During field installation of the emenencv diesel zeneratox: battery racks reg,uested o::::IIJ !modifications were not made.

Tentatively approved modificatio05 a..-p scbecluJ ed ~er

((II] )completion on December 13, 1978.

Tile modifications are 2oual to or better than thosP o::J:rj Joriginally specified.

A seismic analvsis confirming that the modifications are DJ:!] tadequate is scheduled for completion on or before December 21, 1978.

8 9

FACII.ITY

'3o' ST... TIJS

..,owEl'I 0Tl4ER STATUS \\.:::;I ITTIJ l.Ll I O ! 9 ! 7 l@._I _NA ___

METHOD OF DISCOVERY DESCRIPTION @

OISCOVERV LJLJI A/E Notification 8

9 10 12 11 44 45 46 ACTIVITY CONTENT

~

RELEASED CF RELEASE

. AMOUNT OF ACTIVITY ITfil 11.J@ WI NA a

g 10 11 LOCATION OF REI.EASE @)

NA 44 45

'ERSONNEL !Xl'OSURES t::;::,.

80 80 iJ IIIUMBEfl

~

TYPE DESCRIPTION ~

IT] 10*10 j.O !'2;.Jl3j@)i.;.N~A----------------------

i 9

11 1:!

13 P!:RSONNEI. INJ~F.*:S C,\\,

~

NL.:MBE::t DESCF1t*TIC"6

!o lo 10 i@)~!~~~~A~--~~~~~~~~~~~~~~~~~~~~~~--

=

11 12

_:;s:; OF CR o.:.M.AG: TO FACll..lTY t;::,.

7-...:~

CESCPIP-:"::,r-~

C,'

LLJ@I

~,A a

?

0 1..:sL~~f"!"v

~'

SSi.JEOC,'- DESCRIPTIO:'>l ~

IITl lli.Je,'-----=-N;.:,,:A~------------------~ 11 1 1 " :

a

~

10 sa 6,i

=-

! I NAME OF PREPARER w. R. CartwY'iS?ht PHONE:-...;7-:0;.;;3;...-..:8~9...;.4_-_~_5;;..l;;;..... ___ _

' e Virginia Electric and Power Company North Anna Power Station, Unit No. 1 Docket No. 50-338

Attachment:

Page 1 of 2 Report No.

LER 78-125/IT-O Description of the Event Seismically Deficient Emergency Diesel Generator Battery Racks Vepco operating personnel requested the Architect Engineer to compare the emergency diesel generator battery rack seismic design drawings to the manufacturers drawings used to install the racks.

The Architect Engineer discovered that the wall mounts, the side rail supports and the bottom support rails differed from those specified by the *seismic design drawings.

Further investigation revealed that a request to modify the above mentioned components had been issued during construction but had not been implemented.

Seismic calculations showed the wall mounts and side rail supports would yield during a design basis earthquake (DBE).

Preliminary seismic calculations indicate that the bottom rails will not yield during a DBE.

ThJs event is reportable pursuant to Specification 6.9.1.8.i.

Modifications made to the battery racks to correct seismic deficiencies required alternate removal of the lJ and lH emergency diesel generators from service.

One emergency diesel generator remained operable at all times.

This event is reportable pursuant to T.S. 3.8.l.l and Specification 6.9.1.9.b.

Probable Conseouences of the Occurrence If a design basis earthquake occurred in the proximity of the North Anna Power Station, the e~ergency diesel generator racks may fail. Failure of the

. battery racks, which*resulted in battery failure, may cause the emergency diesel generators to become inoperable.

The station would rely on nonnal station electric power or offsite electric power.

Removal of the lH and lJ emergency diesel generators was perfonned in accordance with T.S. Action Statement 3.8.1.l.a.

No adverse consequences are expected.

Cause of Occurrence During field installation of the emergency diesel generator battery racks requested modifications were not made.

The lJ and lH emergency diesel generators were removed from service to make modifications to the battery racks to correct seismic deficiencies.

Immediate Corrective Action Seismically approved wall mounts were installed. ihe battery racks were inspected by representatives of the vendor and Architect Enginee~.

~*- --*........ -**----*..... --*---~------*

e Virginia Electric and Power Company North Anna Power Station, Unit No. 1 Docket No. 50-338 Report No. LER 78-125/IT-O Scheduled Corrective Action Attactvnent: Page 2 of?

Tentatively approved side rails which meet or exceed those originally specified are scheduled for installation on December 13, 1978.

Final seismic approval of the modifications and battery racks is pending a complete seismic analysis scheduled for completion on or before December 21. 1978.

Actions Taken to Prevent Recurrence No actions to prevent recurrence are required.

e e

ENCLOSURE 7 -,12A U.S. NUCLEAR REGULATORY COMMISSION LICENSEE EVENT REPORT CONTROL BLOCK/////// (1)

(PLEASE PRINT OR TYPE ALL REQUIRED INFORMATION)

/V/A/N/A/S/2/ (2)

/0/0/-/0/0/0/0/0/-/0/0/ (3)

/4/1/1/1/1 (4)

//I (5)

LICENSEE CODE LICENSE NUMBER LICENSE TYPE CAT

~~~~ /L/ (6)

/0/5/0/0/0/3/3/9/

(7)

/0/5/1/7/8/D/

(8)

/0/6/1/1/8/0 (9)

DOCKET NUMBER EVENT DATE REPORT DATE EVE..Vf DESCRIPTION AND PROBABLE CONSEQUENCES (10)

/

At 0640 on Mav 17, 1980, with Unit 2 at Hot Shutdown, "2J" emergency diesel

/

generator tripped after starting.

The operability of the "2H" diesel

/

generator was not verified within one hour as required by the ACTION

/

statement of T.S. 3.8.1.1 and reportable by T.S. 6.9.1.9.b.

The health

/

and safetv of the public were not affected since both off-site sources

/

were available and the "2H" diesel was still operable.

/

/==~---,,-~=----~=-------------------------...:...--/

SYSTE~1 CAUSE CAUSE C0~1P.

VAL\\.'E CODE CODE SVBCODE

_COMPO~"E..'IT CODE SUBCODE SUBCODE

/EiB/ (11)

/D/ (12)

/Z/ (13) /Z/Z/Z/Z/Z/Z/ (14)

/Z/ (15)

/Z/ (16)

LER/RO EVENT YEAR l~PORT

..i~ER

/8/0/

SEQUENTIAL OCCURRENCE-REPORT REVISION REPORT NO.

CODE TYPE NO.

L=.J..

/0/0/5/

/L/

/Of

TION FUTURE EFFECT SHUTDOWN ATTACHMENT NPRD-4 PRIME COMP.

COMPONEYI filN ACTION ON PLANT METHOD HOURS SUBMITTED FORM SUB. SUPPLIER MANUFACTUREF j/ (18)

/GI (19)

/Z/ (20)

/Z/ (21) /0/0/0/0/ (22) /Y/ (23)

/N/ (24) /A/ (25) /C/4/7/0/ (::

CA~SE DESCRIPTION A..\\1) CORRECTIVE ACTIONS (27)

/ __

T::.:h::.:e:._-=2.:.:H_"....;d::.:1::.:* e;.;:s;.;;e;.;:l;_..,g..;;.;en;;;.;e::.:r;.;:a;.;;t;.;;.o..;;;.r_*;;..;.a;.;:s;,,,,..;;;n..;;.o.;;.t_t;..;e;;..;;s;..;t;.;;e....;;;d_w....;1;;;.* t;.;:h;;.;;i;.;;;;n;....;;..on;;;.e___;,h_o_u_r_b;...e;...c;...a...;;u..;;.s..;;..e_e;;;..;x;..;i~* s;..;t....;;;i~n....

g ___ /

/

Procedures did not specifv the test connections required to test the diesel

/ __ t;:;.;o~n~r~o~v~e_o~p~e;.;:r;.;;a~b~i~l~it~y~.:._~T~h..;;;.e~o;.;:f~f;...-~s.;;.i..;;..te~p;..;o_w....;;;e~r-b;..;r~e~a-k..;;.e~r-a_l~i-g~~~en_t_w_a_s_v_e_r_1~*f_i~e-d ___ /

/

at 1130 on ~ay 17, 1980 and a test procedure was temporarily changed to allow

/

testing of "2J diesel which was declared operable at 1438 on ~ay 17. 1980.

FACILITY METHOD OF STATl:'S

%,POw"ER OTHER STAT~S (30)DISCOv'ERY

/Bl (26)

/OiOIO/ (29)

I SA I

/Bl (31)

ACT!".:rrr CO!-."TE~"T DISCOVERY DESCRIPTION

/

OPERATOR OBSERVATIO.K REI.EASED OF RELEASE

/Zi (33)

/2/ (34)

?ERSO~~:EL El-POSL1U:5 A.~OL~T OF ACTIVITY (35)

..,,,LOCATION OF RELEASE (36)

/

NA

/

.:..f ____

~_.A;..._ _______ _

n="::::

DESCR:P!ION (39)

'O *0 * ::::7) /Z,* (3S.~

.._., __...:.;~~-!.*------------------------

,,o;-; '4\\\\9'""':"...

-,- -- ~:"<:

,, '-*.........,... -r*---

LESCR !?T:J~._.:;:}

_.:...c. ____.....;.;.x*::...:.!*--------------------------

.:5~ :*:" ::;R !:..!-'1...\\_J:: :J :.;:::::*£

~!S~R!?::c~

l

,:~:)

Pt:E!.IC:;y ISSL"Et DESCRIPTION (~5)

/~/ (.:.4; N_A _____________ _

~"RC t;SE o~-:y

/////////

/~ / /

I I

e Virginia Electric and Power Company North Anna Power Station, Unit #2 Docket No. 50-339 Report No. LER 80-5/03L-O Description of Event e

Attachment:

Page 1 of 1 At 0640 on 5-17-80 with Unit 2 at hot shutdown, "2J" emergency diesel generator tripped after starting. The "2J" diesel generator was being started to prove operability prior to performing maintenance on "2H" diesel generator.

The operability of the "2H" diesel generator was not verified within one hour as required by the ACTION statement of T.S.

3.8.1.1 and reportable by T.S. 6.9.1.9.b.

Probable Consequences of Occurrence The health and safety of the public were not affected since both offsite sources were available and the "2H" diesel was still operable.

In addition, the "2J" diesel generator shutdown relays were reset and the control switch placed in "Manual-Remote".

Since it is believed that "2J~ diesel trip was due to high crankcase pressure, an emergency start signal would have started the diesel and high crankcase presJure would not have caused a trip.

.Cause of Event The 2J" diesel generator trip was apparently due to high crankcase pressure since the trip occurred approximately 20 seconds after the start signal and the diesel had reached ~00 RPM in less than 10 seconds.

Since the "2J" diesel generator tripped, personnel referred to the ACTION statement of T.S. 3.8.1.1 which requires testing the frequency and voltage response of the other diesel generator.

However no procedures were written which included [nstructions for connecting test equipment necessary for verifying frequency and voltage response as required by T.S. 4.8.1.1.2.a.4.

Greater than one hour passed before procedure changes required for testing could be written and approved.

In addition, the ~aintenance Operating Procedure, 2-MOP-6.90 was in error in that it did not contain requirements fQr testing frequency and voltage response as required by T.S. 4.8.1.1.2.a.4.

Immediate Corrective Action The 2J" diesel g*enerator shutdown relays were reset and the contrcl s.itch placed in "Manual-Remote".

The offsite power breaker alignment was verified as per T.S. 4.8.1.1.1.a at 1130 on 5-17-SO.

!empora~*

changes were made to the diesel periodic test 2-PT-82.lB, and the diesel

-~s satisfactorily tested and returned to operable status a: 1438 o~

5-i7-3C.

/

Actiocs Taken to P:eve=t Recu:rence

~

.o.*.*..;..a.-.

Periodir: Tests have been changed to include the connection of test equipme~t necessary to meet testing requirements of T.S. 4.8.1.1.2.a.4.

. ~..,.;.. *L., --....

-..* 4.,..... **-

-* _,_..... _ -~ ***--**--.*. -*.

... ~--------**-----*-**-*-----~---- -.*-** *****... **- ***-.. **-*..* -*-

ENCLOSURE 7 - 13A U.S. NUCLEAR REGULATORY COMMISSION I.ICENSEE EVENT REPORT ill.

/1/

CONTROL BLOCK/~///// (1) (P~E PRINT OR TYPE AI.I. REQUIRED INFOR."1ATION)

/V/A/N/A/S/1/2)

/0/0/-/0/0/0/0/0/-/0/0/ (3)

/4/1/1/1/1 (4)

/__/__L (5)

!.lL

'3/

'4/

'5/.

LICE..~SEE CODE LICENSE NUMBER LICENSE TYPE CAT

~~~ /ti C6) 101510101013!3!8! en 101s111118111 (8) 1016/ 01010111 (9)

DOCKET NUMBER EVENT DATE REPORT DATE EVENT DESCRIPTION AND PROBABLE CONSEQUENCES (10)

/ On Hay 11, 1981, with Unit I at 100% power and Unit II in Cold Shutdown, a com- *1

/ ponent cooling pipe support and snubber was removed as per design change 80-S46

/

/ (ARS (Amplified Response Spectrum)Review).

However, at the time of removal, the/

/ snubber (a Unit II component) was also listed in Unit I Technical Specifications./

16/

I Since the snubber was not installed on a Unit *I system, and the ARS review had

/

\\

J..L I determined the snubber was not required, the public health and safety were not

/

.!L I affected.

SYSTL'1 CAUSE CAUSE COMP.

VALVE CODE CODE SUBCODE COMPONE.'f! CODE SLTBCODE SUBCODE 9/--/W/B/- {11) ---/A/ 02) /X/* (13) /S/U/P/0/R/T/ (14)

/Z/ (15)

. --/Z/ (16)

SEQUE.'ITIAL OCCURRE.~CE REPORT REVISION tER/RO REPORT REPORT NO.

CODE TYPE NO.

NUMBER

/8/1/

c.l /0/2/8/

l:+/-L -

/0/_)/ ---* ILi I-I f.9./

I FUTURE EITECT SHUTDOw'N AT!ACHMENT NPRD-4 PRIME COMP. COMPONENT

.Kt'l ACTION ON PI.ANT* METHOD.. -HOURS SUBMITTED FORM SUB. SUPPLIER HANUF ACTURER

/ (18)

/X/ (19). /Z/ (20)

/Z/ (21) /0/0/0/0/ (22) f:l./ (23)

/N/ (24) /A/ (25) /Z/9/9/9/ (26)

CAUSE DESCRIPTION AND CORRECTIVE ACTIONS (27)

~I

/ The Field Chan2e to remove the snubber was*a~~roved for Unit II while rnit !I was/

1/

/ in ~oce 5 t.he:-ebv comolving with Technical SDedfications.

Howeve:- the perscnnel/

/ involved were net aware that the snubber was also in Unit I 1Tech.nical Soeci.fic.1- /

/

I

/ ticns.

The snubbe:- was subse*.pent.lv deleted :rem bot.:i "Cni.t' s !ec.!:.ci.::a:i. Scecifi-

/-c~a~~~i~o~ns;;..;...*----------------,==~=-----~--------/

! ACllIT'I

~T'.dCD CF S'!'A:1:S

~o~n OTin:R STATUS D!SCOV!..~Y

D!SC0\\1:.~Y DESCR!FTDN (32)

/E/ (2S)

/1/0/0/ (29)

/

NA

. I (30) */Al (31) /

Engineer Observat:oo.

i ACTIV!'!'Y CONTE~rr REUASED OF REUAS~

.:\\MOl1IT OF ACTIVITY (35)

LCCAT!OY OF REI.EA.SE (26;

/Z/ (33)

/Z/ (34)

/

YA I

._/ ____

'N_A __________ /

PE.RSONNil EXPOSL"'RES n11:BER TYPE DESCRIPTION (39)

-, /0/0/0/ (3i) ill (38)

.._I ___

N._A ______________________ i PE.R.SO~"El IYJ'L"RIES YCMBE..~

DESCRIPT!OY (-+ 1)

~ !

/C!0/0! (~O) I YA f--,,,,,,.....,,,..,,.--.,eo..:;;.;,~=-----------------------

L u S S OF OR DA.'"'.AGZ ~o FACI:r:Y (~;)

~l:E t!SCR!?'!:~~

Pt~:::::*.:

x..:..

?EC~i'E _. __

. 7_*~_3 __

.' _.5_?_-_-_5 *_

. -... - ~- ---* ***---- ---*****---*--- --**" ~-- -.... *---.

Virginia Electric and Power Company North Anna Power Station, Unit 1 Docket No. 50-338 Report No. I.ER 81-028/03L-O Description of Event e

Attachment:

Page 1 of 1 On May 11, 1981 with Unit I at 100% power and Unit II in Mode 5 (cold shutdown) a component cooling system pipe support was removed as per design change 80-S46 (ARS Review).

At the time of removal, the snubber (a Unit II snubber on a Unit II system) was listed in both Unit's Technical Specifications.

For Unit II in Mode 5 the removal of this snubber was permitted but its removal was not permitted by its inclusion in Unit I technical specifications.

This is reportable pursuant to T.S. 6.9.1.9.b.

Probable Consequences of Occurrence Since the snubber removed was installed on Unit II system piping, its inclusion in Unit I technical specifications was not warranted.

Consequently, its removal while Unit II was in cold shutdown (Mode 5) where operability was not required was permitted.

Therefore, the public health and safety were not affected.

Cause of Event At the time of removal the snubber in question was listed in both Unit I and Unit II technical specifications although it was installed on Unit II piping of a common system.

The personnel involved were not aware that this snubber was listed in both units technical specifications.

The removal of the.snubber while per.nitted for Unit II in ~ode 5 (cold shutdow"'Il) where its operability was not required, was _not per.nitted fer

~nit I which was in ~ode 1 at 100% power.

I:nmediate Corrective Action written concurrence from the :mtC was secured deleting t~e subjec:

snubber from Technical Specifications of both unit's.

Scheduled Corrective Action No scheduled corrective actions needed.

Actions Taken to Prevent Recurrence

~is was an isolated incide~t. !he administrative controls are adeqll.l:e.

--~'..

.:.. -~ **-.... ~

e e

ENCLOSURE 7 - 13A U.S. NUCLEAR REGULATORY COMMISSION LICENSEE EVENT REPORT CONTROL BLOCK/-~///// (1)

(PLEASE PRINT OR TYPE ALL REQUIRED INFORMATION)

/V/A/N/A/S/1/2)

/0/0/-/0/0/0/0/0/-/0/0/ (3)

- /4/1/1/1/1 (4)

/ / / (5)

LICENSEE CODE LICENSE NmlBER LICENSE TYPE CAT

~~~ /L/ (6)

/0/5/0/0/0/3/3/8/

(7)

/0/5/1/4/8/1/

(8)

/n/5/1/2/9/1/ (9)

DOCKET NUMBER EVENT DATE REPORT DATE EVE.lfr DESCRIPTION AND PROBABLE CONSEQUENCES (10)

/0/2/

I On May 14 1 1981 an inspection of the control room bottled air system revealed I

/0/3/

I that only 83 air bottles were aligned for discharge rather than 84 as required by/

/0/4/

I T.S. 3.7.7.1. While investigating this event the discovery was made that results/

/0/5/

I of a periodic test of control room air bottles indicated satisfactory results.

/

/0/6/

I The tests should have indicated unsatisfactorv results.

These events are renort-/

/0/i/

I able pursuant to T.S. 6.9.1.9.b and 6.9.1.9.c respectively.

The action state-

/

/ ment of the lCO was met.

The public health and safet*, *.;ere not affected.

/

'='s*=Is=-=ru~:-i=------::CA~us==E=---~c""'A~i;="'s=-E-----------=-co~ff"=fP,.....----v:,:-,A.,..,,.,,.L\\.=;-r=------

coDE CODE SUBCODE COMPONL'IT CODE SUBCODE SUBCODE

/S/G/ (11)

/A/ (12) IA/ (13) /X/X/X/X/X/X/ (14)

/Z/ (15)

/Z/ (16)

SEQUE.'ITIAL OCCURRENCE~

REPORT

~ REVISION I.ER/RO (17)

REPORT NUMBER EVE.'IT YEAR REPORT NO.

CODE TYPE NO.

L:.L /0/_317 I

/-/

/0/

ION FUTURE EFFECT SHUTDOWN ATI'Acm1ENT NPRD-4 PRIME COMP. COMPONL'IT TAKE.'i

~ ACTION ON PLANT METHOD HOURS SUBMITI'ED FOR.'i SUB. SUPPLIER MANL"'F ACTh'RER

/H/ (18)

/A/ (19) I.JJ.. (20)

/Z/ (21) /0/0/0/0/ (22) /Y/ (23)

/Y/ __ lZ.4) /A/ (25) /X/9/9/9/ (26)

CACSE DESCRIPTION'A!-41) CORRECTIVE ACTIONS (27)

_1!!0!

/ Personnel errors caused both events.

The control rocm bottled air svstem was

/!/1/

i realigned to place 84 bottles in ser1ice.

Personnel ha7e been reinstructed

'li 2;

/ about bottled.1ir s*1ste:.. ali2D.me~t.

.,. *1 I 1 _________

-=;...._ ________________________ ;

'=--,----------------~==-=---==-------------

FACil~!'l

~TROD OF STA!":s

~Cw'ER OTE!R STATI:S DISCO\\"E.~Y DISCDVE~Y DESCR:FT!OS

. :/5;'

(E/ (28)

/1/0 :o; (29)

__ ; ---~-l~_. _____ I (30)

/B/ (3:) ~; __

S.;;.T.'-~._O_B_SE"'"";\\'-',_*.-1. __ : __ :_o~_i __

. :* 1/7 /

- AC!I7IT!

cmr:L'iT RElEAS'ED OF REUASE A.'10t~"T OF ACTIY!TY (35)

LOCATION OF REI.E.~SE l3c)

/Z! (33)

/Z/ (34) i NA i

I n

I PERSO~:-t"El E.\\?CSl."ES

~'1."'!'!BER

!;"'PE DESCRIPTION (39)

/010/0/ (37) IZ/ (38)

/

~A PERSC~"EI I~w'1.."Rl~S

~'1.~E?.

EsCR:PTICN (.:.:)

~-J-O t.:.C

~A

~ss *:*: *:R :.:1..:-!.,l.GE :: :A;::.::*!*

.. ~-

.r,,;__ -- - -

~i.~!!. -~F ?~~?.:.._=:£.:.

.... -** :~~::-.... 00::-:~:.

~:---:.:.

::_:*=. ---------

t

--~.. __

~~ --* *---~----**-*----- '~-----*-""- - ~*-~--***-----.. -***.,

Virginia Electric and Power Company North Anna Power Station, Unit 1 Docket No. 50-338 Report No. LER 81-037/031-0 Description of Event e

Attachment:

Page 1 of 2 The control room bottled air system has four banks of air bottles with 42 bottles in each bank.

When either Unit 1 or Unit 2 is in opera-tional Mode 1, 2, 3, or 4, Technical Specification 3.7.7.1 requires at least 84 bottles pressurized to at least 2300 psig to be aligned to the control room.bottled air discharge header.

On May 14, 1981 an inspection of the bottled air system showed that only 83 bottles were properly aligned.

One bottle in one of the two banks aligned to the control room discharge header had been isolated.

Unit 1 was operating at 100 percent power and Unit 2 was in the cold shutdown condition when the event.was discovered.

This event is reportable pursuant to T.S. 6.9.1.9.b.

A subsequent investigation of the event conducted on June 9, 1981 revealed that a periodic test (2-PT-7'6.3) had been--performed twice on the Unit 2 portion of the bottled air system after, the failure of at least one bottle. The periodic test require<L:iierification that 42 are aligned to each bank manifold and verification that the manifold pressure for each bank is at least 23DO psig.

The accepta'nce criteria of the periodic test requires each bank to contain "... a minimum of 42 bottles of air each pressurized to at least 2300 psig." Both tests indicated satisfactory test results despite comments on one test critique sheet indicating that two bottles were isolated from their respective bank manifolds.

This event is reportable pursuant to T.S. 6.9.1.9.c.

Probable Cbnseouences of Occurrence 1

The reduction in system capacity from the loss of one bottle is negligible.

}. periodic Test (l-PT-i6..:.) pe::-formed on April 1. 293! wi:.i onl7 83 operable bottles proved adequate system capacity.

After discoveri~g that only 83 bottles were aligned properly to bottled air system discharge header, another bank of air bot:les was valved in immediately.

The Action Statement of the I.CO (!.S. 3.i.i.1}

was met.

The public health and safety were not affected.

Cause.:,f E*,ent.

Human errors and a failu:-e of administiati*1e control allowed the e*;ent to occur.

Failure of the rupture discs on the air bottles is attributed to fatique.

IJD111ediate Corre-:ti*1e Action An additional bank r,.;as alii!lec to the b*:it:le..: a~ -.:isc::.a=!'= hea-.:e:-

!or a :Jt~l o: 1~5 bc:t es. A::e: 3 ch~ck ~i :::.e ~:i: 1 A 3~d 3 :a~~~.

":.t ::::..:. :! ban:cs *ere sol1:.~*.i =e*.:!:.:.:::..:1! :.:l:! :iu.iit'-!= ;i -jpe=3.::le :c :.:._:.;

o :~e re~~ired a~ :ct: ~s.

C...

... ------*------L-.. --*

Attachment:

Page 2 of 2 Scheduled Corrective Action The failed air bottles will be replaced.

Large tags are being made

---* __ and will be hung on out of service bottles and bank isolation valves that are closed.

The tags will enable operators to easily identify isolated bottl:_es and banks which are not in service.

The PT will be revised to clarify the bottle requirements.

Actions Taken to Prevent Reccurrence In addition to the scheduled corrective actions, a description of the event as well as required remedial actions was placed in the control room required reading log.

Generic Imt)lications This event had no generic implications.

-., **-"-**~*--

.. ***** -**---*.\\..,... *'**h-*-*"'*** --****---:.*

e ENCLOSURE 7 - 13A U.S. NUCLEAR REGULATORY COMMISSION LICENSEE EVENT REPORT CONTROL BLOCK/////// (1)

(PLEASE PRINT OR TYPE ALL REQUIRED INFORMATION)

/V/A/N/A/S/1/ (2)

/0/0/-/0/0/0/0/0/-/0/0/ (3)

/4/1/1/1/1/ (4) l_L_/ (5)

LICENSEE CODE LICENSE NUMBER LICENSE TYPE CAT

=~ ~I (6)

/0/5/0/0/0/3/3/8/ (7)

/0/6/0/1/8/1/

(8)

/ r:i 6/ -;J 4/ e/ 1.1 (9)

DOCKET NUMBER EVENT DATE REPORT DATE EVENT DESCRIPTION AND PROBABLE CONSEQUENCES (10)

/0/2/

/0/3/

/0/4/

/

During full power operation on June 1 and 31 1981, containment average air

/

temperature exceeded the upper limit of 10S 0r for 20 minutes and 2 minutes

/

/0/5/

/

respectively.

Since the containment average air temperature was restored to

/

within the limit of T.S. 3.6.1.5 within 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months on each occasion, the public

/

/0/6/

I health and safety were not affected. This event is reportable pursuant to

/0/7/

I T.S. 6.9.1.9.b.

I I

/0/8/ '~=e~---~-,,=,:=------,~=-------------------------~,,-----~~---,......,...~---~~~/

SYSTE.'1 CAUSE CAUSE COMP.

VAL 'v"E CODE CODE SUBCODE COMPONE.'fr CODE SUBCODE SUBCODE

/0/9/

/5/B/ (11) l:f!/ (12)

/Z/ (13) /X/X/X/X/X/X/ (14)

/Z/ (15) fl:../ (16)

SEQUE.'fIIAL OCCURRE..~CE REPORT REVISION I.ER/RO (17)

REPORT NUMBER

/8/1/

REPORT NO.

CODE TYPE NO.

ct 1014111 Ll.J

/0/3/

~I ACTION FUTURE EFFECT SHDTDO\\v'N ATrAcm1ENT NPRD-4 PRIME COMP.

COMPONENT TAKE..~

ACTION ON PLANT METHOD HOURS SUBMITl'ED FORM SUB. SUPPLIER MANUFACTURER

/X/ (18)

/Z/ (19) /l/ (20) /l/ (21) /0/0/0/0/ (22) fi/ (23)' /]!/ (24) ~/ (25) /G/2/1/0/ (26)

I

. CAUSE DESCRIPTION :\\ND CORRECTIVE ACTIONS (27)

/1/0/

/

The first high containment temo. was caused by tenroorary loss of chilled water/

/1/1/

/

to the recirc air cooling coils while changing valve line-up from the mechani- /

(!/21 I

cal chiller to the steam chiller and the second high tenro. resulted when the

/1/3/

/

steam chiller was secured and the mechanical chiller was placed in service. In/

/1/~I

/

each case, containment tenro. was reduced by valving in the desired chiller-unit./

FACILITY

~TROD OF STATUS

~w'ER OTHER STATUS (30)DISCOVE.~Y DISCOVERY DESCRIPTION (3Zj

/E/ (28)

/1/0/0/ (29)

I NA I

f.!/ 01)

/

OPERATOR OBSE:RVAT:os

/

ACTIVITY CONTE..'IT R!I.EASED OF REI.EASE AMOL"NT OF ACTIVITY (35) *

/Z/ (33)

/Z/ (34)

I SA i

P!RSON.Sll o:POS1.;1U:S n"MBE.~.

TYPE DESCRIPTION (39)

I LOCATION OF RELEASE (36)

~A

/0 !rJ/0*/ (3i) /Z/ (38)

XA FERSO~'}iE::. ~:S.Jt"'R.!:C:S Yt.~E?..

DESCR!P':'!ON (O:.";.)

/ o. a/ 'J.1 (.:.c :1 s;.

!.JSS OF CR i),1_.,_~.\\-u.... E __

l'_O_F_A~C.;.;;::'""'* :=':"--I----------------------

DESC~I:'!:O~i

(.:..; :

!SSt"!:i

,"J./0/

/~i (.:..+)

..... ~

D!SCRI~~!ON (.:.;)

i

SA YA."!! OF PREPARER __

I.' __

. __ R_. _C __ AR T'...

..w'R.... I __ G __

H':' ___ _

~"i\\C :SE.C!l:::

/I i:/!i.1 *,/

P!iO:s!

(i03) 39.:.-51:51

. *-*. ~*

~

e Virginia Electric and Power Company North Anna Power Station, Unit #1 Docket No. 50-338

Attachment:

Page 1 of 1 Report No. LER 81-047/03L-O Description of Event During full power operation on June 1 and 3, 1981, the containment average air temperature exceeded the upper Technical Specification limit of 105°F for a 20 minute and 2 minute duration respectively.

This event is reportable pursuant to T.S. 6.9.1.9.b.

Probable Consequences of Occurrence Since containment average air temperature was restored to within the limit of T.S. 3.6.1.5 within the allowed 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months on both occasions, the health and safety of the general public were not affected.

Cause of Event The high containment air temperature on June 1 was caused by a temporary loss of chilled water flow to the containment recirculation air cooling coils while changing valve line-up from the mechanical chiller to the steam chiller. The high temperature on June 3 resulted when the steam chiller was iecured and the mechanical chiller was placed in service on the Unit 1 containment in parallel with Unit 2.

Immediate Corrective Action In each case, the containment air temperature was reduced by valving in the desired chiller unit to provide the required chilled water flow.

Scheduled Corrective Action A higher heat load appears to exist on Unit 1 containment.

Corrective action will be to inspect insulation on various components such as the reactor head and steam generator supports during the next refueling.

Actions Taken to Prevent Recurrence No further actions are required.

~neric IIDt?lications There are no generic i!Dplications associated ~i:h :.his occ~rrence.

' J

\\ ___.._ __. --*~-.----..

.~ --

ENCLO. 7 17A, 18A U.S. NUCLEAR REGULATORY COMMISSION LICENSEE EVEN! REPORT CONTROL BLOCK/////// (1)

(PI.EASE PRINT OR TYPE ALL REQUIRED INFORMATION) lL.

/V/A/N/A/S/2/ (2)

/0/0/-/0/0/0/0/0/-/0/0/ (3)

/4/1/1/1/1 (4)

L.l._L (5)

LICENSEE CODE LICENSE NUMBER LICENSE TYPE CAT l/

REPORT /L/ (6)

/0/5/0/0/0/3/3/9/

(7)

/0/6/0/6/8/0/

(8)

/0/7/0/2/8/0 (9)

SOURCE DOCKET NUMBER EVENT DATE REPORT DATE EVENT DESCRIPTION AND PROBABLE CONSEQUENCES (10)

~ I On June 6, 1980, with Unit 2 at Hot Standby, the "2J" emergency diesel

/

3/

/

generator was removed from service for replacement of a transformer.

Since

/

!{

I operability of the "2lr' emergency diesel generator and both offsite power

/

5/

/

sources were verified within one hour prior to removal of the "2J" diesel, the/

S/

/

health and safety of the public was not affected.

This is reportable by T.S.

/

~1 I

6.9.1.9.b.

!~ __________________________________ /

SYSTE..'1 CAUSE CAUSE COt1P.

VAL VE CODE CODE SUBCODE COMPONE..,"T CODE SUBCODE SUBCODE lJ:J,]f_ (11) f];L (12)

/A/ (13) /T/R/A/N/S/F/ (14) fl./ (15)

/Z/ (16)

SEQUE...'f!IAL OCCURRL~CE REPORT

~ REVISION REPORT NO.

CODE TYPE NO.

LER/RO EVE.'IT YEAR

(-=~

i.=.L /0/1/4/

ill

/0/

\\CTION TOT1.1RE DnCT SHUTDOw"N ATI'ACRMENT NPRD-4 PRIME COMP.

COMPONE..'IT

!'AKEN ACTION OH PI.ABT tiETROD HOURS SUBM!Tl'ED FORM SUB. SUPPLIER MA.'llJF ACTtJRER

'A/ (18) 1JJ... (19) LlJ.. (20) 1JJ... (21) /0/0/0/0/ (22) fi/ (23)

/N/ (24) /A/ (25) /C/4/7/0/ (26 CAUSE DESCRIPTION AND CORRECTIVE ACTIONS (27)

)/

/

The "2J" emergency diesel generator was removed from service to replace a I

/

failed transforme~.

The transformer and a relav which was Powered bv the I

/

transformer were replaced.

The "2.J" diesel was tested and retur.ied to

/

3/

/

service in 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months and 16 minutes.

/

I I

!Ac=rL~:=*TY....-------~---------,~-==TH=-=-oo=""""'o~F:--------------------

sTAn:s

I'OwL~

OTB:!R STATUS (30)DISCOV,:-..RY

/

f.!L. (28)

/0/0/0/ (29)

/

NA I

/Al (31)

DISCOVERY DESCRIPTION (32)

/

Operator Observation /

ACTIVITY CONTE.. 'IT REll:AS:ED or RllE.ASE A.'10t"m OF ACTIVITY ( 35 )

lOCATICN OF REI.EASE (36)

~/

/Z/ (33)

/Z/ (34)

/

NA

/

... '----~-A _________ /

?E..~OIDl"EL !XPOSLAES Sll1BER

TYPE DESCRIPTION (39)

/0/Q/Q/ (37) /';.,' (3.S)

I

~t~

?E..~C!,;-i'E.I, ~Jl"'i!.!ES

i

CE.SG!?TION (.:.1)

] 1 0.' c.:.c; /

~*.!.

_.:ss :: *'JR Dz1-'"!.!.U~ :: ;_;;:::: *.:.-

!SSt"'E)

~ESCR!?TION c.:.s)

~C USE cs:.::-

/Yi/ (.:+;;.;

i SA

/ /., / / / i,- I i i ~*

SA.'1E CF ?RE? AEL,

-._;. R. C.Ai\\:-.V1U :j}f!

PHC~"E (iJ3) 89.:.-515:

-... -*~*-**-***'...O,***,-**-~---'--***----**-*---** :... *.-... J... -*.,-..,*--*-~-... -~.*--.. *.., ** -.. --,*-*****:

~--*.

,-~*.

. ******- -**- -- _.. --~*- -~--. --* ---**- -._.,_.. ~--

.. _ *.-*-*:.*_ ---:-.*~--~~~-- *_--_:~ *---~.*-*--*-------..

- - -~

Virginia Electric and Power Company Horth Anna Power S~tion, Unit #2 Docket No. 050-339 Report No. LER 80-14/03L-O Description of Event

Attachment:

Page l of 1

. At 1452 on June 6, 1980 with the unit at Hot Standby, the "2..J

emergency diesel generator was removed from service for replacement of a transformer which supplies control power to the auxiliary lube oil pump in accordance with the ACTION statement of T.S. 3.8.1.1, Probable Consequences of Occurrence Since operability of the "2R" emergency diesel generator and both offsite power sources were verified within one hour of the removal of "2J" diesel from service, the health and safety of the public were not affected.

Cause of Event The "2.J"' emergency diesel generator was removed from service to replace a transformer which had failed.

The cause of the failure of the transformer could not be determined, however it was discovered that the 120/240 VAC transformer had a rating of 0.075 "K!vA and that there were 15 amp fuses in the power supply line to the transformer.

This size fuse was supplied by the manufacturer but no specifications for fuse size could be found.

The manufacturer was notified and is investigating why such a large fuse was supplied.

Immediate Corrective Action Both offsite power sources were verified and the "2H" emergency diesel generator was verified to be operable with.in 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months prior to the removal of the "2..J diesel from service and the transformer was replaced.

The relay which the transformer powered was also replaced due to damage it received when the transformer failed.

The 2.J" eme:-gency diesel generator was tested and returned to service 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months and 16 minutes after being removed from service.

Scheduled Corrective Action None scheduled at this time pending manufacturer's review of fuse sizing.

Actions Taken to PTevent Recu::T~nce

Set required Gene:-~c I::rolicaticns

~cne ap;:a:-e:i:.. a: t.:.is :i::ae.

i I

, 'j

. j I

, I I

l l

I I j

! i TAPLI I Rc.u.1on for 00 Uperatton,, acheduled llurntion of Run Tuch. Spec Re~ 1d Teat Tech. Spec. 4.

Month-ly Surveillance PU:~-

22.3.

2 Hr.c* *

.1*

Refueling Outage T.S.

4.6-PT-18.2 Operability Check T.S.

3.16.B.1 PT-22.3 Verify Repairs (not full test) 00 Actual De**nd Start* not foe

Tcat1na SI Signal H1acell*neoua T**t*

(Specify Type)

PT-22.3 Performed to mix chemicals (30 min)

Verify Repairs (Starts Only)

DG Ho.

1 3

1

?

~

1 2

1 1

2 3

1 2

3 1

2 1

l

?

'l D1***l Oenerator OperAt1 CalenJar* Year 19 7 Hu11b11r Hu111Ler Percent of ot LoaJlnc of Starta

Failure, DO (KW) 12

-1 100%

13 1

100;.:

12 0

too 0

0 1

0 100 7

2 100*

8 1

100 4

0 100 8

0 100 13 2

100 1

0 100 7

1 100 1

0 0

1 0

0 2

0 0

l 0

100%

0 0

"-l 1

0 0

0 l

Q Enclosure l.e l 11!11111: N.1111*

S pn1t No.

1 Duration of Run Defore Stop l'or Identification of Failure lfoch UO Ya t lure (Refer to attached I.Ima or*Tallle l)

I 58 min.

Ta,:bJ.~ Ja No. 12

~....

0 mfo.

Ia:ble Ja No. 13

~-

(I m;n _ 0 min.

Table 3, No.14 and No.15 c; c; :.;;; n

. 2 min.

Table 3, No.16, LER-usRE-Sl-76-04 fl min. 1 min.

Table 3, No.18 and 19 1,.r,. min.

Iable 3. lic.2Q 0 min.

Ta6Ie 3, N0.?7

.~ '

I J

I I

1 TADLE 2 11.eaaon for IJowntJine Scheduled Halntenance Preventive Mainte-nance on Diesels, breakers, etc.

Equipment Modifi-cation D.C.76-42 D.C.76-30 Wholesale Replace-ment of cylinder heads in anticipa-tion of future failures I

T I

b l

l*e DC h unavalloble or emergency 1ervlce ecauae of required e*U PT-22.3 PT-18.2 Operability Checks PT 22 3

' u~, 1 13 0

72 9

17 Dte11al OeneratOr S~led Calendar Year 19..1.f>

lloura of Downtlae Reacto.r 11hutdown Reactor ui..,2 ui..t3 UGI UGI u,:,

-nca

.1 27 11 28 9

18 61 0

0 0

0 137 0

29 10 48 37 Down t i*a Re co rd not shutdown l)GJ DGl1 2

J 18 0

0 58 17 0

62 14 64 DGI

-.e 2

Plane Ha*a Surry Unlt Ho.

1 & 2 ca.. ent*

~

Design Change 76-42 & pre design change for Design testing and examination Change 76-30.

Down time for connective action to correct recurring cylinder head problem

Diesel cannot be automatically started during test or for 3 hours3.472222e-5 days 8.333333e-4 hours 4.960317e-6 weeks 1.1415e-6 months afterwards

l i

)

1

'j j

\\

Pleael Generator UnecheduleJ Do Calundar Year 19.1.§ ltcconl F.ncloeure ~-

3 Pinnt Hn*s Su Unlt Ho.

LER Ab11tucs: Ne Downtiiae lloura (Refer to attcl Total rrouble-

'arta,Del* Repair/

ed LER Abatinci 9 )llours shootin.8 Lvery 1etc leplace 8

9 10 11 NO LER 12 13 14 15 14 183 11 52 3

0 0

4 1

13 1

6 2

0 0

2 1

48 1

8 0

0 0

1 12 122 9

38 1

0 0

1 Comments -

1 t any of the reported faflures would not have been a (allure und~r emergency conditlon11 1 pleaae explain here, Refer to attached LERs or the fatlurea llated in Table l.

False instrument signal, Diesel Trouble alarm (high temp)

First bank air bottles low pressure.

Failed to start using preferred during PT-18.2 Failed to start 2nd attempt during PT 18.2 16 1.25 1

0

.25 Diesel Trouble alarm-high temp. nothing found - PT accomplished sat.

17 18 0

8 min 0

0 Improper position start selector switch.

1 1

0 0

Would not start local or remote d~e to improper switch position.

19-4 1

1 2

Fuel oil pressure gauge line ruptured (isolated - diesel can run witho 1ut it) 20 1

0 0

l Replaced mechanical Fuel Oil Pump.

' ' ' j I I

.. 1 i

. I I

', I J

. I

I j

! ; l

i 1 i; l

i

~ i I

J' ii TAULt: 4 1>Cucc:Jurca lllllld l f tcJ 0 P-6 (Unit 2) 9 P-6 (Unit 1) 0 P-6 (Unit 1 & 2) 0 P-6 (1 & 2) 0 P-6 (Unit l & 2)

OP-6 (l & 2)

OP-6 PT-22.3B Date or Hod.

6/20/76 6/24/76 6/24/76 4/29/76 7/9/76 On11tu l!la11r1.ancy DlP11 unun11:or iantl Enclosure l,,- Pa.A l1l11nt tfl1111&a Su *

.A111gt1t,uy ~q11tp*u11t H,.uU tJc,a&. tun lh:c:tlr&I UnU Ho.

I & 2 Rc~aon for HoJtficatton anJ De111rcd h1pruve1aent New Valve added to list.

New Valve added to list.

II II II II To ensure DG is jacked over to use.

prior air compressor would start and blow air out strainer drains.

D011crtptton of Hod1f1catton Add new valve to valve list #2DG II II II II II II II Ii Delete Section 4.2 II II II II

1DG ll3DG Add new steps and renumber to accomodate.

4.15 on engine console, select# l & #2 air comp's to "off", 4.1.ll on engine console, select #1 & 2 air comp's to "auto".

8/12/7f Operational experi~nce Total rewrite 8/11/7{

To insure Diesel will start with each set of air motors.

Step 4.1.19 set preferred start selector switch to 1 (

) if off month of 2 L) if event ~nth.

8/31/76 (Check one) 4.1.20 - same as old 4.1.19 and all other steps will be renumbered accordingly

There was only one documented inci-Delete step 4.7 - Renumber subsequent steps.

dent of lose connections-(1973).

Repeated tightens can damage connec~

tions. The location of these con-

-- ---~-------.I----

.....--~--... 1'-""+o-1""

o

TAIIU 4

-E,1utp11ent or procc:dura a.od If tcd EMP-P-EPDC-29 EMP-C-EPDC-22 EMP-C-EE-31 MMP-C-EE-054 MMP-C-EE-051 MMP-C-EE-051 Oouit* l!iaorsoncy Dtou Au-Ut,uy ~q11*p111crnt Ho nurntor 11n.J Uc:u&;ton 1t11c:1>>r&I 2nclosure 1 - Pa l1JA1lt Ni.unca Surry Uutt Ho, 1 & 2 Ra~aon for HoJlficution and Deutrcd l111provc:111c:nt 11/4/76 To prevent arcing at the pattery terminal when disconnecting & re-connecting cables.

12/30/76 To provide station housekeeping (comply with Adm. 40) 12/23/76 II II II II 12/15/76 II II II II 12/iS/76 II II II II 2/6/76 Operating experience Duacrtptlon ot Hodiflcatton

,r 5.3 Have operator open and red tag the battery charging supply breaker at the MCC.

5.12 Remove DC fires from the battery charges~

remember old 5.12 to 5.13.

Add-comply with attachment I statements (housekeep-ing).

Add:

4.4 comply with attachment I, Part I.

6,-8 comply 11 11 I, Part II Delete step 5.3.

3.4 comply with attachment I, Part I~

change 6.2 to read - comply with attachment I, Part II.

3.15 to comply with attachment I, Part I change 6.2 to read "comply with attachment I, Part II" Complete revision

~--

~,:~:,6occoo.i-C;oc.;t.,ul,.,.,

1 o AVAlL AC Ct~~ I l *l'I. r-.o.

TJTLt..

CCJ~._,AU 111 Oir-ll.

lYP._

""l :-4 l.,

AVAIL Ab$ T*U,C: 1 UC.ZC.11 ttloc, Wl'lt.H F(I\\J!I-~ lJRJPPlNu OUl OF UC. AIR FsOX DRAIN Al su~~y I VlFhalllol~ ELELTf.il( £ PO't11t::k c.a* ** ~ICr11~1Jl'tlJe VA l ",.'it, Q

Pc.s. Llt. \\l'/ML,; l;~t.-SI-Zo-sc& Tl., N...:C OFf'ICE OF I£. c. R~C.llll'*

11. MAY c*,. l'J~*.)0(;.it'tl ~e,-,*co. 1v..-~-..pw;.c. MFG-*EST **

Ac--~TO~~ t

~~~~ll~

AYAlLANlLIIY -

~RC ~U~LIC UO~U~ENT ROOM. 1717 H SlWEET.

W~!:>HIN"'TJI,. (,. C *

?O~lt: :1 (L;i:! C.El'l:TS.l'PAGE MINIMUM Ct,A~G~

!.2-. O\\J J C.kU~E. -

CiU(."-c.i.) l.YLll'liut:.t( t,EAL-.

OU~ING PREPARATIONS 10 lL:S.l Tt-eL

~lA~ll~~ nF t~t~CLNCY bltScL ~~~t~ATOH 1. -AfEM ~AS. CBSEkV[O IJl-llPl'INC. r,ul OF lt-:r. >.JR t:*ox L,)f.cAlN.

AlEk t1i..O t.NTt~t:.v Th[; AJr, bG~ F~u~ CYLINCE~ I

~lA lH~ CYLIN~E~ *Al~ INLtl PU~T~.

lht.

t' J::. flll'\\ *A~ ht:Ak HU:. bUT ft,t,\\ CJt-Tht..

!:>TkOK.t..

Wt"11Cn C,1.tt:,1',,t:,C, Tt-,l Al~

INTA..;.t;,..Uh.l~.

A (k/.(1(. \\ti.:> FUUl'lfC, IN CYLINC,t:.J.l tic.All l

WHIC.H I:: ).Jr Nl,1:.lJ F~Ott.. AN l:..'4h~lJS 1 VI.L~f. ~Loll I 31'4 OF THE:

C, J ~ T At,iC:.t:

IO 1 t-tE:

lN.iL<:tu~ IIIL.Ll. :.NO lHRllU<..ti 10 lHc *A(l:.R.IACKt:.T.

1111~ 1S r11~

~~L0~~ LYLl~L~~ ht~~ 10 LRAL~

~h~ LEA~ *lTHJN ONt.. MONTH.

THt C"IL 1,~L*Lh ht.~CJ Ar.a~* A!.-:::i.HC:.J-lE..0 C.LiMPUNc.NTS WE.~f:

H::.PLAC.l:.l>a VCL u I *~ '"/"/':I l'IL~..:.L C.L.:-.:e~ATCirl l*fdiAU*O c,ur<1!'~G TE~T ~TAf..T Al ~Ufi~Y 1

\\t H,1..IUl'-

l.Li..LT.... ll. e, t-0<<1:." (.Q ** ~l(..t,M~Nu.

VA l 1*7b 0

3 F-*c.a*,.

LT~ W.h<U U~,h:L-$l-7b-Of 10 Nl-lC.lFFICt:. Of-l

£. t:. WE<,lON

11. p;.v lj<.

1>7<...

JQ(..i<.Li !:,0-~clJ* 1Y~£..--t,>wR. MF~--w~~T..

Ai- --5 TL)NL C.. ~: US Tt-. tl AVAILAblLlf't -

1,.R(... UbLI(. !::CJLUf*\\t:NT RCCM.

1717 H ~l~EET.

~~~tl11'11l.1C::\\.. O. C.

,0~4~

(C.t\\ CLNl~/IJAtat: --

foilfltHiUM CH~~C,t

. >2.Uv)

CAU5.t. -

C..YLl1'o..>L~ 1-LUCluf..:.i "lTh *~lt.R.

OUFdNG A ~1A~l ll'l&G. lC:.,T OF

'THt t:M.;.k..,E.NLY QIC:~l:.L ~E.1'1U,Al0f~~,-.hc11,:

IHE COl"ltTkOL kOC-'* C,/C, I

~A~ UA~A~E~.

PlSlO~ CYLl~~~M 17 HA~ FL~UDl:..u WITH ~Al~~.

THE t;t.~;:,~,..

TU!..(b;... v::t:..:a 3B 10 uHF-C.,l~~~L f:N(;. INE. tiAU A CR.C:..~K IN THF.

CYLl'H*~k t"lt:.AL.* E>E:.T*t111E.~N 2 E.lH,t.U!:>l "ALY;;.. S~AT~ ANu p,1J(J TH;;.

WATCR JA~~=l* ~~ObAJLY CAU~c~ &Y t"l~AT ST~~~~.

lH~ ~A~AGC WA~ 4 SE:.~T CUNNC:Lll1,.:. R~:::>. ~u;,TUi-11:..0 CYLINOt:.J.c w.C.LL.

AND M"Ok..E~ PlSTur..

"LL UA~A~~u Q~ ~u~~ECl

~A~I~ w~~t kl:..PLACEU.

PMUC~OU~~~ ~ILL E>E r.tiC:1.11~ IE:.D TLJ

- "~UkL Hit:. uJE::.t:L l~ ~OLLi...C, IP.'lTn CYLl;'ltluc:~ Tt51 CtJLI(.~ 0*-'t.N H, CH~C.I<. Flirt FLC.uOt:u C 't'L l NOl:..1-iS PR 10!-<

TCJ ANY ~ANUAL

~I.C.FiT.

'\\. *

-*. -~*-.. ~ ______ _., ____ ; ***.-----* ~--~~*-*

. '.. *:*--.- ***--****----------**'*~*-**-***-*. -*.... **-****.

~~'.,0'0~~001-0000011 //

- 7 ACC.ON TIT COQ h

DAT"l:

TYP~

JiilEMO lVAlL NO.

COfol:?~NE"' J C.:Ct;(.

SYS 11:.f.

LOLH::.

PAGE OOZ014Ul:$0l PRE~SUHE bl.U~= 8LOW5, OUl OF EDG COOLING WATER PIP£ AT SUkRY J

VUo?~l"'-.IA ELE.C.TRlC. £.

POWt::.R (.0 ** RICHr,,,.:JND*

VA I 'i,7o u

3 PGS. LT~f~/L.ER 78-0~6~03L-O 10 NRC _OFFICE OF I

& ;* REGION

11. AUG. ~~.,1~76. uOCK~T so-2eo. TYPE.;.._pwR. MFG--Wc5T **

AE--STuNL £.

W.::::)!:.TE.:l WA~Hl~uTON. u.

205~~

,oe CENl~/PAGE -

MINIMU~ CHARC.E s2.oo >

537 AVA.ILAulLlTY ~RC-PUBLIC DOC.UM(NT ROOM. 1717 H STRE:.cl.

l>AT l:. OF t:.Vt.NT -

Ot:.! ~?6* _., PO~_ER LEVEL -

I 00%.

CAUSE -

CORK OS ION OF STEM.

~llM THE U~1T AT RATED POWERe A SURVEILLANCE TEST WAS IN ~RU~kcSS UN I ~DG WH:N A PRcS!:,URI:::. GAUGI:::. BLEW OUF Ol A

COOLING WAll:::~ Pl....:.

lH~.EOG WS INOPERABLE FD~ A PERlOu OF ONE HQUR.

THE GAVL~. A 5MALL 0-.oO P~lG TYPE. HAD AN ALUMINU~ STE~

IIIHlCH CG"RClCJW A'liA'f UNTIL Tt-1~ IIIATER PRESSURC: WAS GREATtt:< lHA~

11-t:

STR.'.::1',,h **.:f'H OF TH~ ~EMAININ~ ME..TAL.

A PRESSURE GAUGE IS NCT

~E~Ul~Cu,Fuh THE COOLINu ~ATEk SY~T~M.

WAlE~ PRc5SURE 15 NOT NOR ll'IA LLt'Y MON lTlJ~ !::: D ON I NT E:.RNAL CO MAUST I ON E.NC. 1 NE:5.

A STEEL PLUG......-"AS lN~TALLE.v IN PLACt:. OF THE GAVC.I:::.

NU. F~THEr.c ACTION *1s

~~_91:flkb.>.

Ttt OTHER EDC. 1 !> 00 NOT HAVE '-l:Hl5 TYPE OF GAUC.E.

l;,r-lRU-11\\151h.~ENTI.T l(JN AND CONTROLS tt-tMcR~ b~NL~ATUM SY5, & CONlROLS b9/~/0COOOOl-~000011//

~CCE~SlC~ NU.

OOZCllb~47 llTL~

~ATL~ o~~ERVC~ ro SE DRIPPING FROM DIESEL GENERATOR CYLINDER AT COAPJ..U Tt-i C.,A T!:

lYtJc r-lE"'1.:,

At:!.STRACT

~URkY I VlR~lNIA ~LcCTRIC & POWER CO ** RICHMOND* VA 197e o*

3PGS. LTJ.< W/US,R~-S1-7b-07 TO NRC OFFICE OF I & E* REGION lle

.JULY

.:'C,,

Hl"lb. DQCl(.cl 5v-2Eso. TYPE-PwR. MFG--WEST ** AE--STONE

t. WE:tjSl~t<

AVAlLAalLllY -

NRC PUBLIC DOCUMENT ~ODM._1717 H STMEET.

W~HlNC.101'11* U* C.e 20545 (08 CE.NTS./PAGE -

MINIMUM CHARGE.

s2. cw, CAUSE -

C~AC~Eu CYLINDER H~Au.

WHILE PREPAR]NG TO TEST tMc~Gl:::NCY ClcSEL CE~E~ATOk 1. *ATEM -~s OcSEMV~D COMING OUT OF CYLINuEh 1~.

The EM~-.::;M TUkLlO Vl:::1::: ~c. 3bl0 BHP. DIESEL E~GINc WAS FUU~~ TO HAVc A L~ACK IN CYLIND~R HEAD 19 WHlCh EXTENDED 9LTw::.EI\\

~ _E..XHAU!>l VALVE: S1:::AT5, ANI.J INTO THE WATEF<.JACKET._

RL'LL(Nc.; Tnl. L.... c.;INE. lrrllH THE. CYLINul:::.R,TE~T COCKS OPEN PRlO~ TO STA~TIN~ THE ENGlNt FORCED WATER UUl OF THE CYLINDER.

THIS IS Tt-t. Fl~Trl C~LIN~E~ t-EAD ON THIS ENGINE TO B~ FOUND WITH A CRACK

~ITHIN A 3 ~ONTH ?~~IUD.

THIS CAN INUJCATE CYLINDER HEAU HEAT

~l~ES~ CAU~E~ bY H~AT IMUALANCE UR ENGINE OVERHEA~.

THE HEAD WA~ Rt;PU~CECJ.

b9/~/00u0001-~00~0II//

~CCESSION NO.

OOZOllb~4~

9 TIT~

A~OTHER CYLIN.>~R HE.~O FuUN[J LR~C~cu ON DIESEL 6ENERATOR AT CCJRµI.UTH D*T~

lY~l 14cM&)

4VAIL

'6STkACT SU~RY 1 Vl~Gl~IA ELECT~IC & POWER CO ** Rl~HMOND. VA 1~76 3 PGSe LT" 111USRE-::,l-7b-lO 10 NRC OFFIC1:. OF I

& E. Rc.GICN 11.

AUG. 14. 1~76. ~OCK~l ~o-,&o. TYPc--P~R. MFG--kEST ** AE--STONE &

WE6STE:R AVAlLAbJLITY -

NRC PU6LJC DOCUMENT ROOM* 1717 H ~TREET.

WASHJNGlUN. ~-,.

20~4~

,oe CENTS/PACE -

MINIMUM CHARGE s2.c,o >

CAUS~ -

~REVIOUS ~NGINE OVERHEAT.

DURING PREPARATION 10 TEST E~ERGENCY UltSl:::.L ~ENl:::.kATOR* WITH THE REACTOR ~T ~0% POWLR.

WAT(R 110,s OElc.Clf;.0 IN CYLlNuER 7.

lHc EMO-<.M TURBO VEE 20.

3~10 SHPe OIESEL ENGlN~ SUSTAINED A CRAC~ IN CYLlNOEM H~AD 7 WHICH EXlENUtO SET~t;EN 2 ~XHAUST VALVE SEATS AND THROUGH THE WATER JACK~I.

THIS IS THE SlXTH CYLINDER HEAD TO CRACK IN A 3-MONlH P~RIUJ*

FROM THt LOCATJO~ OF THIS HtAD. IT APPEARS THAT A ~~cVIOJ~ ~~ulNE OVcRHEAT CUNOJTJON HAS HEAT STRESSED THE CYLIN~CR HEAuS TD ~UCHA PUINT THAT PR~MATURE M~TAL FATIGUE FHOM VIO~ATJ::N IS CAU~lNG lHc CRACKS.

NLW CYLINDER HEAuS ARE ON ORDEM.

TOIAL REPLACE~ENT SHOULD P~ECLUDE FUklHER FAILURE

i TAULE 1 llcaaon for 00 Up&:UtSon,, achedulcd

-~!11r11c lon of Run Tuch, Spec Rcq 1d Toat Tech. Spec. 4.6 Month-ly Surveillance PT 22.3 ( 2 hr.)

Operability Check T.S. 3.16.B.1 Vertfy Repairs (Not full test)

(*.

Refueling Outage T.S.4.6-PT-18.2 l)C Aciual Deaand s, aru not foe

lcllllui SI Signal tu11callaneou* Ta,ta

(;i1*cclty Type)

Test Operation of air flow louvers for Design Change 76-30

Verify Repairs starts only DC Ho 1 1

2 3

L i

3 1

2 3

1 2

3 1

2 3

1 2

~

1

?

3 Pteaal Oanarator Opcr"t CalcuJa~ Year 19 Humber tlu111Ler Percent ot ot LoaJlnc of Starta

fatlure, DO {KU) lJ 1

100%

13 1

100%

12 0

100!

8 1

100%

2 1

100%

7 0

100%

1 Q

1ooc;;

5 0

100%

3 0

I 100'-

C 0

l 0

100%

1 0

100%

2 0

0 1

0 0

3 0

0 1

0 100%

I 0

0 0

0 a

0 2

~

0~

a

)

C s:.1uauuuru l -

raKCI &

l 1J1111t N-1111* -=*

~n1t Ho, Duration of Run llc:f orts Stop l'or Identification of Patlure l~ach DO Fa llure (Hefasr to attached 1.r:ns or*T111.Jle l}

I 46 min.

Table 3 No.18 5 min.

Ta'Eiie 1, t:Jo.I9 18 min.

Table 3, No.20 0 min.

Table 3, No.2i

-==--

0 10 10 10 10 min.

Table 3z No. 31 for all

Neason for

()o~nt hie uur 1 Scheduled H;atntenanc*

Preventive Mainte"":"; *,..

nance.

0 Equipment Modifica-tion DC-76-30 0

I

].:

TI 1111: l>G l I unoval lob le 19 fnr emurKency servlce hecauso of required ll:16, J PT 22.3, PT-

18. 2 + specia]

(op chks) lltoael Oenarator 9 Calendar Hours of D011n t t11e Reactor aihutdown Reactor

. I llownt f*a Record not shutdown ua, 2 uC'3rDU1 unr im,1 UGI 2 nc,3 DCI 0

0 14 20 28 0

0 3

0 0

24 0

68 76 J,.00 Enclosure ~age 2

Plant Ha**

Y Unit Ho.

Co11aent*

DGI Pre-Design Change Testing and examination for Design Change 76-30.

Diesel cannot be automatically started during test or for 3 hours3.472222e-5 days 8.333333e-4 hours 4.960317e-6 weeks 1.1415e-6 months afterwards.

~... *****

J: !

*, *l l,! l Pie1111l Generator UnucheduleuJ CulunJ11r Ye*r 1977 lloconl t:nclosure ~-

J rlunt H11rn1t S

Unlt Ho.

l.£R Ah11tuct N1 Downtlae lloura (tlafer to attcl Total rroubla- ***rta,Del

Rep*lr/

eJ U:R Alu1trac1 s) 11 oun shuotins lvety,etc leplace NO LER;'s 18 19 20 21 3

1 9

80 o

1 0

58 1

0 5

2 2

0 4

20 Coancnl:a - If any o" tho reported failures would not have been*

Collure umlc'r emergency condltlon11, ple*** explain here, llefer to attached u:ns or the fallurea ll11ted In Table 1.

Fuel Oil leak and vent cock fire DG stopped during warm-up-started during cooldown cycle.

Fuel oil leak.

Air Motors would not start in both preferred start settings, sometimes starting in one or other.

TAUl.t: 4

-l!,1utp.. 1rnt or pruc.:durca a.ud U lei.I PT-22.3C l-PT-22.3C 2-PT-22.3C DG #3 Test PT-22.2

PT-22.2A PT-22.2B PT-22.2C EOG #2 Fuel Supply 2-PT-18.2 OP-6 Exercise start of EOG (#3)

I OP-6 Data of Hod.

5/4/77 5/4/77 5/12/77 6/15/77 8/10/77 Onalt* 1!11car111ncy Oh

.Audlt,a ry 1!*1u

p1111111 t 1977 unuri11:Dr,an,I Ja:u&. lun lh:a:urJ Enclosure l - Pase 4 t*lont Hu111u ~

u,,lt Hu. ~

llca~aon tor: Hu1U ficut,!011,uul U~*lrcd lmpruv~~unt to enhance separation of performance (1)

(2)

(3)

(4)

(5)

(6)

Puacrtptlon of Hodiflcatton Critique Sheet-Block 2 112-PT-22. 3C"

~*

Block 3 change to 112 11 New Format Block 4 Delete "Monthly' Block 5 Insert "Bi-monthly-even months" Carry through identification in Unit~

Delete 4.1 & renumber all after

'11111111' Same as above for Unit 1 Cancel PT-22.3C Consolidate all 3 into 1 PT for all 1

1.

EDG

2.

Install new PT-22.2 delete PT 22.2A PT 22.2B To conform to changes made by DC 75-51 If both swit~hes were not in exer-cise, the diesels would come up to 900 ~PM immediately upon start and would not idle at 450 RPM as requir-ed for 5 min.

To ensure diesel will start with each set of air motors.

PT 22. 2C Modify valve list 1 - include RWST isolation from both LHSI pumps 5 - include additional two K>V-88's in ch LHSIS pump recirc. line.

4.14 when starting EOG #3, place mode selector switch to exercise on both the unit 1 and unit 2 Dual control.pauels in the control room.

4.1.1 Set preferred start selector switch to#]

(

) if odd month or 2 (_) if even month (check one)

I i

j TAUl.t: 4 Equfp1acnt or pcoccdul"o aiodtflcd l-PT-22.3C PT - 22,3C l-PT-22.3C 2:-PT-22,3C PT 22,2 PT 22.2A PT 22,2B PT 22,2C Date or Hod.

5/6/77 5/5/77 5/6/77 unuriu:gr An,.

Onalt* ~arsancy Dt Au*tlt*'} iqutp*ant Uc&1Uon llacor&I -a.P 1*1Ant Ha*ca Sur U111t Ho.

_1...._&....:;; __

Ro~aon for Hodificatton And Deatred laprove*ant To enhance separation of performance and accountability To split PT-22.3C into Unit 1 and Unit 2 procedures to enhance performance and accountability *.

Consolidate PT's 22.2A, B, and C into new procedure PT 22.2 in order to reduce number of procedures *

. \\

Daacrtptton of Hodtttcatton (1)

Critique Sheet Block 1 Change to 1-PT-22.3C Block 3 - Change to 111 11 Block 5 - delete "Bi-monthly-(2)

New Format (3)

Carry Identification thru for Unit 1.

(4)

Delete 4.1 - Remember all after Cancel PT-22.3C Provide new procedures 1-PT-22.JC 2-PT-22.3C Entire new procedure -

PT 22.2 Cancel PT's 22,2A, B, and C

-- ----~~~~--

I I

I

'* I I

I ll~J&IOR for 00 Upa:ratJon 1, achedulcd

_!!*1rntion of Run Tl:ch. Spec Rcq 1d Teat Tech. Spec. 4.6 month-ly surveillance PT-22.

3.

2 Hr. (1 start/test)

Refueling outage T. S. 4.6-PT 18.2 Operability Check T.S. 3.16.B.1 00 Actual Deaand Slarta not foe Ta:at111g None tu.cal hneoua Ta,ta

( :i 111: c if'/ Type)

Design Change Air requirement special tests starts starts onl y DG Ho 1 1

2 1

1 2

3 l

2 1

1 *t 2

3 1

2

'l Ple11al Oanarator Opcrntl CalcuJar Yea.r 19..1_

tlu111ber tlun1l1cr P11rccnt ot ot 1.oaJtnc ot Start11 l'a l lure, DO {KH}

12 100%

LL n

100%

l, 0

100%

2 0

IlJO 0

u 2

0 ioo 9

0 100%

6

(\\

lQQl 8

0 100%

1 0

IO!J%

1 0

I 100%

1 0

J.QQ~

I 1

0 14 1

Oai

(\\

Q t"

lluration of Run Detore Stop l'or ldantltlcatlon of Potluro l!uch na 1'11llure

{ltcfur to &1tt11cha:d 1.1m11 or*Talile l}

46 min. 1 hr.

Table 3, item 22 and LER 7 o11

0 min.

Iable 3. u.~m 23.

i. I.. '

lleauon tor l101.1nt hie ScheJulcJ H:9lntenanco Preventive Mainte-nance.

DC 76-30 I

hie llC h unavulluble or emergency 1ervlco T

t

- I aecauae of ruqulred e1U PT - 22.3 PT - 18.2 OP Checks -PT-22.3 uur 1 29 5

30 Dleaol Oenurator Set Calendar Year lloura of D01,1ntlae llown t tnie Record Reacto.r 11hutdown Reactor not uhutdown Ulil 2 UGr3 uc, uur llr."fi" im, 2 UG':3 DGI l)CI 0

0 18 11 49 0

0 6

5 5

5 6

73 75 88 I

Encloeure ~-

e 2 Plant Naae Unit No.

1 &

Co11111enta

~..

Testing operation of Louvers..(2 -

3 hours3.472222e-5 days 8.333333e-4 hours 4.960317e-6 weeks 1.1415e-6 months .of diesel operation followed by 3 hour3.472222e-5 days 8.333333e-4 hours 4.960317e-6 weeks 1.1415e-6 months cooldown cycle before diesel can be put back in auto).

Diesel cannot be automatically started during test or for 3 hours3.472222e-5 days 8.333333e-4 hours 4.960317e-6 weeks 1.1415e-6 months afterwards.

! l

I

! /

i UI.~ J llleuel Generator UnucheduluJ Do CalonJar Ye*r 19-1,8 llcconl Enclosure l*J rlnnt Ho11111 Su Unlt Ho.

1 &

I.ER Ahataact U, Downttae llouru (Rater co attcl Total rrouble-

-.* -r-c-.-,n-e-l~--R-e-11_a_l_r_/f eJ Ll::R Abatrac1 s) 11

________ 1 ____

0...;u __ r.;;11_1shootJ1\\s Lvery 1etc teplace

.6 7

NO LER 22 23 0

1 9

0 0

0 5

0 0

1 4

0 Co111111ont1 - 1r ony of tho reported failures would not have been a foll11re unJir emergency condltlon1, ple*** explain here, Refer to 11ttached LEll!f or the hlluree lleted 1n Table l. 1. ~

Administrative Failure only-operability of EDG not affected.

LER # l-LER-78-026/031-0 exhaust leak-EDG could have been run during emergency, but was not~

available for auto start.

During tests to find lowest air pressure necessary to start a Diesel Generator.

(

j 1

I :

Alli.I:: 4

--l!,1u I pnu:nt or u*ucc:Jul"a 11,.. ul l t tcJ l-PT-22.3A 2-PT-22.3B l-PT-22.3C MMP-P-EE-007 Unit 1 & 2*

MMP-P-EE-007-1 Unit 1 & 2 MMP-P-EE-007.2 Data of

HoJ, 12/13/78 12/13/78 10/17/78 1

3 1

3 Ro~aon for Ho,Uftcaatlon,u,J Ua:utrcd l111pruve:11umt

& 2 Standard Format

& 4 adding requirement for samp-ling lube oil & cooling water *

& 2 addign requirement for samp-ling Lube oil & Cooing water.

Update to QC format applying lessons learned 10-17-78 applying lessons learned 10-17-78 Refueling/18 month PM procedure for EDG engine.

1.

2.

3.

4.

1.

2.

3.

Enclooura l~Pago 1' l n n t H iuiua Unit Ho, Puacrtptton ot Hodtftcatton Acid references Re-number steps Section 5.0:

add note for sampling.

New attachment.

5-5~0:

add note for sampling New attachment renumber steps Complete rewrite Complete rewrite New procedure

.'*j r*

J i

_'f f

l: 1 I

--i!,1utpracnt or

~ruc,u.lura

... uu t led PT - 18.2 (Unit 2)

Data of Hod.

617 /78 Ondto l!t1.ar1ancy DioM

.AM~Ut,ary l!,1u*paurnt H nurutor 1uul a:,u. a un llca:1>rJ lla!laon for Ho,Uftciatlon and Das*ircd h1aaruv4:1A&mt Change format various corrections~

addition & deletions required.

PuMcrtptlon of Hodiflcatton Major revision steps 5.19, 5.38, 5.38, 5.19.1.3, 5.38.1.3, *5.21, 5.40, 5.22, 5.32.1 1 5.40, 5.41J 5.43, EDG addendum steps 4.5 & 4.8 compressor 2 vice Comp 1 & valve checkoff list.

. *

r"*

: ~: *'...., * ' '

I' i

! 1 l:

I*

i *. j TAUl.t: 4

-1!,autpnu:nt or

~CilCcJura

... uu t tcJ PT-18.2 (Unit 1)

PT 18.2 Unit 1 and Unit 2 Dato of Hod.

5/25/78 4/5/78 01u1tu l!.auraarncy l>tou J.u~U t,a ry l!,1u* p11uant H nu rut or im,I c,u. Ion ll1:corJ Ro~uon for Ho1ltftc11tlon 11ml Peat.red l111pruv1:11u:nt 5.8.2, 5.38.3 Typo 5.19 & 5.38 not requieed at time.

5.19.1,3 & 5.38.1.3 correct time.

5.21 1 22, 40, & 41 - additional info.

5.32.1, 5.52, 6.4 Valves check-off list 5.40 incorrect annum 5.43 valves should be closed at this time Adendum steps 4.5 & 4.8 - Typo Valve list-correct & placed in logical order.

Update format 4.19 & 4.38 - Sentence left out 4.40 No such annunciator step Puucrtptton ot Hodiftcatton 5.8.2 Terminal 1 to 2 vice 3 to 4 5.19,5.38 Delete sentence that begins "Reset BS-FW-474".

5.19.. :}..3 & 5'38.1.3 change time from "after SO sec" to between SO & 60 sec.

5.21 add 5.40 Add annunciator locations.

5.22 add "wire numbers 41 and 42" 5.32.1 step 5.8 vice step 4.8 5.32._3 terminals 5 to 6 vice terminals 3 -4 5.40 "Comp Cooling PP 1 B trip" vice "compo-5.41 5.43 nent Cooling PP lB Low discharge press-ure".

Add Acc. Disch. valve wire no.'s for checking sign.

Add, "and close the RWST crosstic valves 5.52 5.32.3 vice 4.32.3 6.4 5.18.2 vice 4.18.2 Addendum - steps 4.5 and 4.8 comp. no.2*

vice comp. no.1 Plus corrections*to valve list.

Complete revision sections 1-6 (format change)

~

(1) step 4.19, 4.38 add Reset BS-FC-474'11F 484 & close crosstic valves.

(2) step 4.40 change "comp. cooling PP lB Trip" to "Component Cooling PP lB Low Discharge Press."

I i uros:&ir,and c,u. au n lhu:11 r J Enclosure l - P~s*

l1 J 1111 t Hl1111&1 Surr Un U: Hu.

1 & 2

.TAUl.t: 4 OnMlto ~df&dncy Utou

.A,u, ~ U,ny i,1 u

111111111 t H

--~.~1.;;,rapj;;111;:c~1~,ti:°";oi;;r-;--------r"io~.:.c:-:.;--;o~fi-J~iiki::o:":~::u::o:7.,1~l~o::r:-i:*1~0::i,1i,t'f;;t-::c::a::t-.1-::u~n--:a-n'il~-------.---..... --~----~----------~--~---------..:::::: __ ~.:*:....,,--~

1uuca:Juro HoJ.

l>cutrcd l111pruv.:11u:us:

Duucrtptlon of Hodiflcotton 11.uJ l t l cJ MOP - 6.1,6.2, units 1 & 2; 6.3, 6.4 12/6/78 OP-6 5/25/78 OP-6.1, Unit 1 & 2 5/25/78 OP-6.1 12/6/78 to place in a standard MOP format and Complete Rewrite to eliminate the duplication and con-flict between this MOP, OP-6, and the PT 22.J's.

I (1) to allow correct corelation between EDG and completed procedures

Cl) change OP-6 into 3 separate procedures, one for each EDG.

e (2)

D/C 76-30 (2) add opening of Diesel Room air Intake Louvers.

to provide the necessary instru. for (1)

New procedure.

start-up, operating, and shutdown of the EDG.

D/C 76-30 4.1. 22 add 11 (D) Diesel Rm. Air Louvers open" e

/

Ar:ss,... 1..c1 ACCESSION TITLE co~.,AUTh OAT(

TYP~

MEMO AVAJL Ai3Sllc ACT NO.

CO.,,P~NE"i r t.:CL;t.

SYS1l:~ l.OL1c e

(.QNllNUAllC,N J

7 PAC.E 0020140801 PRE ~SUI< E bAU'-!: BLOW~ au, OF EOG COOL 1 NG WATE.R PIPE AT SUkRY J YIK~l~IA ELCCTRl~ £ POWER LO ** RICHkONOe VA 1 c;7o V

3 PGSe LTR W/LER 7S-026/03L-O 10 NRC OFFICE OF I & E. qEGJON

11. AUG. 22. 1~7&. ~OCK£l so-2eo. TYPE--PWR. MFG--WE~T **

Af--S luNL t. WO:::,!, TE~

AVAJLAulLlTY -

NRL PUBLIC DOCUMENT ROOM. 1717 H STRccl.

WA~HI~~To~. u. c.

20S~~

coe CENl~/PA~E -- MINIMUM CHARtE s2. oo >

537

~Alt OF tVtNl -

0~0~78.

POWER LEVEL -

100%.

CAUSE -

CORttD~ION OF 5TEM.

wll~ lH( U~lT AT RATED POWER. A SURVEILLANCE TEST WAS

~ P~OuktSS. ON l tOG WHcN A PR~S~UAt GAUGt BLEW DLF OT A COOLING wAlt~ Pl~~.

TH~ EOG WS INOPERABLE FO~ A PERlOu OF ONE H:JU~.

lHc CAuc.E. A ~MALL 0-bO P~lG TYPE. HAD AN ALUMJNU~ STE~

-HlCH CGRROu~ A~AY UNTIL THt WATE~ PRESSURC -AS GREAl~R THAN TH:: STR;:N~TH OF THE ~EMA!NIN~ ME.J'AL.

A PRESSURE GAUGE IS NCl H~~UlwCO FUh ltE COOLIN~ ~ATEk SYSTtM.

WATE~ PR~SSURE JS NOT NO:.:F-\\ALLY M(JNlTORt:u ON INTE:RNAL COMAUSTION ENGlNtS..

A S1'EEL PLUG WA~ lN~TALL~v JN PLAC~ OF THt GAUGt.

NU FUHTHE~ ACTION I~*

HLuUl~tu.

1~ OTHER ED~*~ 00 NOT HAVE THIS TYPE OF GAU~E.

1N~1RU-1NS1kll-lENT~ll0N AND CUNTROLS

~t-~~tRu ~~NL~AlO~ SY~£ ~ONlROLS

~~/~/u~~~~CI-C~GCOJI//

ACCC.~!aH>:-.;.... a.

00lv14c:.bl t

TIJL~

~ICS(L ~.N[~ATD~~ NOT l~SlE~ DURING THE R~FUEL(NG OUTAGE 1.1 t.O~~*-'ul t-.

DAH..

lYI'~

Mfrat:U AVAIL AbSTkACT SUKh,Y I

Vlk~J~l~ LLL~T~lC

~ POWER C.O ** ~lCH~O~D. VA l':'7b o*

~ P~s. Ll~ W/~L~ 7d-040/~~L-O TO NRC OFFICE 0~ 1

~ e. RcGION lie NC1V. 2f:d'e lC,,7t..e l,GC,<tl ~C,-~t:11.;. lYPE-PwR *.,.t=t..--*t:ST **

AL--Slul';~ I. loctlSTLR AVAILAHJLITY -

~~L ~U~LIC OULU~E~l ROOMe 1717 H ~l~EET.

wl.Shl~~l:)r... I>. C.

2U~::>~

(Ot; C.t:IIITS./PAGi: -

MlNlMU~ CHAR~t

~~.vO>

UAT~ 0~ tVE~l -

1~317~.

POW~k LtV~L -

100~.

CAU5E -

SCHtOULlP\\iC. f..hl-llJ"'*

&JUF..ING. A kOUllNL AUC,IT &Y SlP.11DN f>f~SONNf:L u~ PcMIC~I~ 1~~1 ~~~Ohl~. If WA~ N01tD THAT l~~ Pl TO INSPECT lttl:: f.Ou *~ uU;.{111<<.~ A "L:FUtL lNC OUTl.t.C HAO l'IIOT &EEl'I. COMPLEl E.D FO~

~~~*~I~ 3.

THL

~U~'~ hAD A~EN O~ERAT~O AS P~MT OF ANOThCR Mu,1HLY ~, ANO TH~McF~RI:. lH~lR U~ERAolLlTY HAO B~tN D~~ur~~1~~1~~-

D~L 10 AN ~~~JN1~1~A11V£ ERRO~. THE PERIODIC T£~1 TU lN~~CCl tOG,*~ l £

~ ou~I~G THE ~EFUE~lNG ourAG[ WP.S NC

~ChE~ULt:.~.

lH~Y

~~~t: IM~lOIATELY INSPE.CTEO UPON DJSCOVE~Y 0~

lHt:.

l:.Rlm!"~...

LrnHus\\~AllVL ~UlOt:LlNi:.~ HAVE DEEN REVISEV TC Pki:.CLuuL A Ml::.CUMkt.NCt:.

t N(. lr.it:.-Lr.:C.. I ;,L~ *IN lE.1oeN.t'L C.CJ~uu:., T ION E~-~MLk~ GF.NL~AlO" SY5 £ CCNl~uL~

j i

i

'I i;

\\'

j I..

I.;

TAllU l llc.iuon for 00 Upa:ratjon 1 l achoduled 1111 r n t f on o t Run

-icch. Spec Rcq 1d Teat Tech. Spec. 4.6,PT-22.

3 Monthly Surveillance 1 start/test (2hr.)

Tech. Spec. 4.6 - PT-18.2 Refueling Outage Tech. Spec. 3.16.B.1 Partial PT-22.3 Operability ck.

and/or verify repairs (x 35 min)

MOP 26.6 (1 hr.)

11G Actual Deaand Slart* not tor l'c.t 1111 SI Auto Starts and Spurious UV signal Start tlhcolhneoua THta

(;i11ec lf y Type)

Pl'-22.3 performed to mix chemicals.

(EG-1-44 min.)

To test Fuel Oil_

Alarms (EDG-2-30 min.)

DJ.eael Humber DG of Ho 1 Start*

1 12 2

]2

'l lJ 1

0 a

1

'l l

J.

5

')

Q l

10 1

1 2

0 3

n 1

1

!J

'l J

1 1*

2 3

l!.nclaaure l -

Pago 1.

I'! 11111.: N-1...

y Oanarator Oporo~Poto

~ntt Hu.

Calendar Yeur l Huni!Jer Percent Duration of Run ot l.oRJlnc at lluforo Stop 1'or ldantificatlon of Potlure Fall ure, no {KU)

Much DO l'a l lure (ltefur to attached 1.P.lls or*TalJle ))

0 100%

I --

0 100%

1 ioo~

r:;.

n,-in Table 3, Item.!4 0

()

100%

0 100%

3 100%

o.o. J. min.

'T'~hl p

':\\

Items 25 and 21, lQQ" l min.

Table 3, It~ 2J

/

0

!tl0%

0 0

0 100%

0 0

a 100%

~

0 100%

1

'1 '

1 I

i TAIII.E Z Keauon for IJ01.1nt b,e uur 1

Schei.luhJ tt~tnunance Preventive*

0 Ma in tenance Thu: l>C h unavollable fnr emergency 11rvlce 63 because of required

,e11u PT 22.3 I

PT 18.2 PT 22.3 specia" Dleael Oenerator S Calendar Yasa Hours of Do"ntliae Reacto.r 11hutdown Rcrnctol" ui..r2. oc,;-,m, m,r w.,

DGD

--1.

5 7

51 6

l 113 61 26 9

Record not uhutdo""

DC" PGD DC.I, 2

3 8

32 Plant Haae Unlt Ho *.

88 2

Co1111enta e

e Diesel cannot be automatically started during test or for three hours after-wards

1.

1 1

'i 1

- j i

'.' i j

\\:

I::

'i

.It J Ple1111l Generator llnucheclulcHI Dnw1 C11lu11J11r Year 19_z9 llnconl l'lnnt Homu Su Unlt Ho.

l &

l.t:R Ahstracs: H1 Dmmttae lloura (Refer to attcl T

1 ota frouble- *'art*,Del

Re11alr/

eJ Lt::K Ahstrac1 s) 11 5

4 NO LER ITEM 24 ours shuot11\\s lvery 1etc leplace 0

158 0

8 0

120 0

30 Co111111cnta -

l t any of tho rerorted fallures would not have been a follure unJe'r emergency condltlon11, pleaae explain here, Refer to attached LEila or the fallurea Hated 111 Table 1.

LER 79-017-No failure-notification of probility of failure.

LER 79-044 Fuel Oil Leak 25 26 27 4

2 0

8 0

0 0

6 1

1 0

0 3

1 0

2 Low Oil Level-would not have been a failure during actual emergency.

2 EOG did not start until 3rd attempt - No apparent reason Voltage regulator malfunction.

-~*

.\\-,,*-****~!"--.:"*-- ---~....... -

.*,.* --...-~7 *******-----

ME. t-:lJ A

c.:,11i:,:,:.,""~'", c.ct..c

~YS 1 t: r.r.

L(J:::)l

-*. ________.. __ -~- '-* --------~-*--**-*

~ l, t.0.1 NUA 'T I uN I

3 p~~. Llr, lroA.t:.J,.. 74-0-.4/03L-o TCl fl.loiC OFF*ICI::. OF I

C. ~. kcC.J~I\\:

II..JAN. 17w l'.Pt;Oe l.,iJC.~c:1 ~C,-~t:'uw lYP~__.µ111~. M~u--WES1 **

AF---~L*

AVAILt..:.JILllY -

N~C P\\JULIC ooc\\..1..,,E.:..1 RlJQM. 1717 H :,1RE.£T.

WA~Hl"'ulW~. ~. C.

~O~~~

(Oc Cl~T~/PA~c ~ ~INl~UM C~A~G[

S.i.<.,O >

p~ll OF LY~~, -

J~3L7~.

PuwtH LEVtL -

ooo~.

CAU~E -

h~l YCT

'(;tltR,.,I"-t.i.l.

i1tJT11 i:>C.lta \\JNITS AT CULC., ~HUlOOwN.,r:::, EuG Wt.!~

S.TA.... lE.:, t'(it<

A.'-

OPt.P'(l.clLlTY Ct1C:.C"".

/1.

LOUD NOISE wAS C,Elc'C.H:O IN THE VICl:"\\:llY uf-TnL TU!:c::3lJ-,CH.C.kC:..E.F..

T>-tt ENGINE..,.AS.

1,....~E.:.,1AT!::.LY SHUTu~"'°;,..

A FI.JLllA!:

&Jt=

A PAJ....l IN.THE TUNbO-CHA~C.Ei-~ JS lhC:

~~~.:>!;.Cl c..l.; CAU::.t:..

The T lME. OF-lhc..,IJ:SS lBLl::: FA ILUi:.'.:. CANNOT b!::

Ot-lt...lX}l'*r:L, Ar*.::.i MA'f hi.Ve :.,cc.Ut<!,;.:.O F-;:nuR TO UNIT Id c-ElNC.. s... c.*.JGHT Tu,. C~1L:1 ~tiUT L,Ot111"- t.m.r.1J l JON.

lH~ TUl*H-10-CHAkt.ER wA~ h.E::.,LAC~rJ Ar,C hit. :.,:,_~[LTl\\lt; UNll R~lURl\\:LO lC t.,,.c, F(J~ MEC11NC,lll0Nl:,;G.

0lHE c~u~c 0~ THL ~RJ~LEh CANNUl

~~ ~tlt.M~Jh~U UNTIL lrlE lN~PECllUN

~y

~~~. ~UTUk~,oh~t.tllV~ A~lllJ~ ~ILL R£ OEIEM~J~EO bY lh(

Kt.!;uL 1~ OF lh::. lN:..;.>tL l IQ!\\; CY EP.~[).

E~~1Nt-c~~l~L~.Jh1E~NAL c.~~Lti~Tlu~

~f..-.:.~:~~ i: Lt ""LrtAT Q;,(

~y~ L CON 1 "'(IL!>

6v/~,t~~~~c*-~~u~~]l/l

~CC~:~J:~ ~-*

~~Zv14~~L?

111 L:.

LUE-I-: IC 1,,. 1 l[:,N t"l-l(,:JL t::i-1 c.r~uLL* LJ( VEL c,i:,

S:.ul..'t t< co.

CL-"~""L'l t; C,A Ti.

11 t-'i.

fi't~t:

1-V~ lL CUt-,P='~*c. ~ 1 CUL f:

~y S 1:..., ~O:"JE ht.~f..Ji.. t_.

,,C.l :.~~y J v J :... (. l ;.. i :.. LL L (.1 '<I C £.

JC, 7.:;.

0 LTM ~/Lt:.** 7c;-017 10 u.:;. !'I.RC. REG.luf': 2. f,~AY J5. 1~7..,. UCJC.t<.::T

~(.-cc;.C;.

"l'r'J-:1._--f,"'~* ~Fu-.... c:::,1. At.--~+K

{.Ql'\\:lMUL--C.cS/:-4::

Av;i..lLAl lLllY -

N~C Put*LlC l.>OClJM(r...T..(QOM. 1717 H Sl"'EET.

--~~Ml~l-1~~ O.C. i~~~~. (~~ /~AGE -- ~INl~U~ CMA~GC ~~.O~)

i::.,.,:.1t.

Of-

~vu.1 -

~~-u~7'1.... owth'. Lt:v~L -

uoo~. C.t.v5~ -

uES.lu~

i~~:J4. t.L:.(1;,0-11'11.)IIVL LIVI~IC.Nw C:.t:.r,.,1:.1.:ct.L IW,OTUC:.:5 C.t*.~P ** ~UllFIEO VL?UJ lh... 1

.. r>ku: ::'LE... (.~uLC, uc'Vt:.LUP II'< 1hRU~T (it:,.,dN<., Ot-lUF<:.* (.)-..hAhu[.h FCl~ !::.l';LhuE.NCY lJlE!:>[L Gt:.NtRAl:lR~-

U"[*.;;.~ CLRTS.I" r.L~LA1 ~.,,..,I CP:..~PT Hai ~m,t:.~.

0~ J(ilNAL NOTlF lCAl 1nN OF 'lHJS L~~ l~~lCJllJ UNlT

~ l~~lt:.AU UF U~ll la PMO~L~~ 1.... V~LVE5 l~A~C~UAI[. UlL su~~LY 10 lhMU~l bEA~lN~ u~~i~ c~hl~J~

CC.l\\.CJ1J~r.~ **

5:.Vt:.;...AL LVOLUIJC,1,!. Ul'~L",t.~

ll"it:SE. ~!;~lr<lCllVE C.LJN~llll.!r,.:_. AkE Rc.l.uJ;..!;L, 10 (AU~: ::.1<.:.NJFlCANT c,,:..,.,,=.t,~.

PkOl.t:.C..1.1t-"L ChA:-.t.t:~ loo'JLL PkECLUuc. li::.!:.1 JN(. OJ.::S.EL c.:..:""'E~AT~R~ IF k~~lWlLI IVt. (.[;1'11DJ1JL*1"oi~ t:>.l~l.

~~~1Nt.-L~6J~~s.1~Tt~N~l co~~USllG~

E~-L~tR~ ~t~[~~lL~ ~y~ t CONTkOL~

~~,~,~~L~~Cl-C~~COJJ//

t..

ACCC.!a!.: Hl:. "-U

0 Ul lll.4,:. b J TllLc JIC.!~LL

~.. Nt.:P</1.TCJoH, NOT 1,:s1EL* OURING THE RE:FUELl"NG OulA~E,.,

t.OJ.J*~ul t-.

DAlt..

lYl'~

ME"1:U A"AIL Ab!)TkACT SUKh,Y l

Vlk~l~l~ LLLLT~IC"£ POWER C.O ** ~lCH~ONDe VA l ':-7 b 0

~ ~~s. Ll~ W/~~~ 7d--040/~~L-0 TO NRC OFFICE OF 1

~ E. RcGltJN 11* NC1V. 2'rw l'.i7t:.. l>OCi<.tl !>C,-ct:il..w lYPE-PwA.,.,.t=~---~ST **

AL---Slui-.:i.; £ lic.i::.STLll

/1.VAILl\\t-ilLJTY -

~ ** ~ PU:.>LJC DULU~E.r... l f".cOGMe 1717 H !>THEElw wl.!:IHJ111(,1~r... L'-

c.

2u::,::,!,

(Ot'.-

C.t:tlil~/PAC.:.L -

r,,,}Nl!W'IU~ CHAR~E.

$~ *..,c,,

UAT~ 0~ tYE~l -

1~317e.

POwEk Lt:V~L -

IOOX.

CAU~E -

~Cn~OULIN~ Lk~u~.

~UhlNG A kOUllNL AUDIT 6Y STATION PE~S.ONN~L u~ P~MICvJL,~~1 K~~O~T~. IT WA~ NOltu THAT THC Pl TO INSPECT 1ttl: 1!0<>*~ C.,Ui.UM, A G.L:FUt:Lltl,IC C,UTI.<,~ HAO Nul &EE"' COMPLE1ED FO~

~~~*~ l

~ 3.

THL ~uu*~ hAD A~EN O~ERAT~O AS PA~T OF ANOThCR Mu,lHLY ~T ANO lHcktFtRt lH~lR U~ERAolLllY H~O Bt~N D~~Ut~~,~~l~LJ.

DuL 10 /1.N A~kJNl~l~AllVE ERRO~. THE PE~IODIC T~~, Tu IN~~tCl tOG*~ I

~ DU~l~G lHE REFUELING our~~[ wAS NC

~ChEOUL~~.

lH~Y

~~~t: JM~~OJATELY INSP[ClEO UPON OJSCOVf~Y 0~

1Ht:. tRJ(fJ:"(.

_u,.u,..ust~AllVL C:.UIOt:LINi:.!. HAVE [;SEEN REVJSE'O TC Pki:.(LuUL A Ml:.Cu.lkt.NCt:

rllN!:.N1 CUOE:.

~N~JNt-L~c..11,L:...INlEl4N.6L CCJ~uu:,TlON

-Y~l~~ C~~E

£~-LM£k~ G~NL~AlO~ ~YS £ CONl~QL~

';: i l: 1

, t i

*i I

: j

.. I

_; 1' I

J'"* f 1

I I:' i I

~

; -' i

'. i

. ; l

~. !

TAlll.t: 4

-~,1utpiacnt or

~.-ucc:duca 111,u,J It lc,J MOP-6.2 MOP-6.3 MOP-6.4 OP-6.1 OP-6.1 OP-6.1 PT 22.3B PT 22.3B PT 18.2 PT 18.2 Dato of Hod.

7 /18/79 7 /3/79 12/.21"/...19 7718/79 7 /18/79 9/5/79 9/27 /79 7 /18/79 nurutor,uul Encloaure I l1lnnt Ha11u1 Onulto ~a.ar1uncy Uh111 AMdlt,ary ~-.uap1111111t H C IU.. I UII 1l1U:(j raJ Uia tt Hu* --=~

llo~uaon tor Ho,U ftc.it-lun anJ Pc11trcd l111provc:111cnt (1)

NPS-QAM Section 4.5 (2)

Recommendation of !EC 79-12 Add new systems (1)

(2)

I Add valves to checkoff sheet Differentiate Valve checkoff sheets.

(1)

NPSQAM-Sec. 5 (2)

Recommendations from IEC-79-12 (1)

R~commendation from IEC-79-12 duplication of step To prevent damage to turbo charger tank coolant (1)

Provide instructions to meet recommendations of IEC-79-12 (2)

Steps left off last revision Duacrtptlon of Hodiflcatton (1)

Rewrite format (2)

add new steps 4.2, 4.3 (3) add note following step 5.2 (1)

Change title and add valves for lube oil and cooling water systems.

~""

(.1)

Add valves l-EG-27 through l-EG-38 (2)

Add suffix "A" to OP-6.1 on all pages e (1) Rewrite format (2)

Add steps 4.10, 11, & 12.

(3)

Add note after.step 5.1.20 (4)

Add note after step 5.2.8 (1)

Add notes after step 5.6 (2)

Add time placed in auto after step 5.7 (3)

Note after step* II-B in attachment I delete second set on-.steps 5.3 & 5.4 (1)

(1)

Add to step 3.3-Assure engine oil temp. in below 1600F.

(1)

(2)

(3)

(4)

(5)

(6)

Add step 4.8 & 4.9, 4.5, 4.6, 4.7 Add note after step 5.3 Add note after step 5.42.2 e

Add step 3.3 in addendum to PT-18.2 Add note after step 35 in Redundant Sys.

check list.

Add MOV-1862B and change MOV-1862 to MOV-1862A *

, I

i

'I.

i

i' I'

1

' j

1 TAUi.~ 4 l!,1ulpnu:ns:.or 11 ruccdun1 11.u&I l t t cd PT-22.3A PT-22.3C PT-22.3A, PT-22.3B l-PT-22.3C 2-PT-22.3C I

Dato of Hod.

7/18/79 11/28/79 Otu1lto l!aasr111ncy l>tu

.Aau, 11 t,a ry l!:'I u t p11uan t nu ro s: '1 r 111111 1:,u. ton llua:.-nl Encloaure 1 - Pus@ 4 t*Jont N'1111&1 ~

u,,1t Ho. ~

llo~111on fur Hu,llftc.atlon,a1ul Dcu1rcd l*provc~cns:

Recommendations of IEC-79-12 (1)

Chemistry says-no need for full gallon I

5.5.

bad wording 6.1 bad wording (1)

(2)

(3)

Puacrtptlon of Hodtflcatton Add note after step 5.6 Add time placed in auto after 5.7 Add note after step II-Bin attachment I (1)

Change attachment I to read "Take~ gallon samples of oil and cooling water".

(2)

Add NPSQAM reference 5*. 5 Manually symchomize the d:f.esel with other power sources and bring load on diesel~

2750 KW.

6.1 This test shall be considered sat if diesel diesel generator No.

starts, is syachronized and accepts load up to 2750 KW as specified in steps 5.4 and 5.5

1 for PT 22.3A

2 for PT 22.3B

3 for l-PT-22.3C and 2-PT-22.3C e

TAUU l llcauon for 00 u.,..:ration 1 l acheduled DO l111r11c Ion ot Run tio 1

-Ta:ch, Spc:

Req 1d Toat 1

Tech. Spec. 4.6 2

PT22 Monthly SurveiJ Janee 3

.3 ( 2 hr) (1 Start/ Test Refueling Outage T.S. 4.6 - PT-18. 2 2

3 T.S. 3. 16.B.1 1

Operability Checks, 2

and/or verify repairs, 3

(part I a 1 PT-22.3)

DC Actual Deaand Stare* noc for T,*itt1n&

SI 's and Instrument 1

Hal function I nl ti a ted 2

Starts 3

Uhcallaneoua THtl

(;i11.:cHy Type) 1 Verify Repairs 2

Check Operability of 3

Start Motors.-

(starts only)

. j

. l)J.eul Canar**tor Opentl.11tq CalenJ*r Yeitr 19 tlumLor Hu1uLer Percent llurution of Run ot ot l..oaJtur. of Uufou Stop l'or Starta

Yallure, UG (K\\l) l!n Ch UO fa I lure 15 J

100%

I 35mi 1 hr 1 15ml 13 1

Hrn~

1 hr 25 m 13 1

100%-

15 m 0

0 o*

2 0

100%

2 u

1ooi 10 0

100%

10 2

100%

0,0 12 1

100:t u

2 0

1-100%:1-0%

~----

4 0

1-10oi, rest t 0

1-1Uui6, res-i:, %

s 5

0 0

2 I

0 0

0 4

2 0

0 I

Om Encloaure l£1te I

~

1111111&: ti~....

µ111 t tlo, ldant1f1cat1on of Polluro (Hefurto attached 1.ERII or*TaLle l)

Table 3, Item 28; lER # 2; Table 3,4tem Ta61 e 3, rtem ~ll Ta61e 3, I tern 31 II Table 3, i tern 32, Table 3, I tern 33 Table 3, I tern 34 e*

Table 3. Item 35 LER #1 (Unit 2) ;.

for both fa I lures

j

' i j

i.

1 1 !

"I 1

i j

I

\\.

j l

i l

' i kc!APOI\\ fol' uo~nt h10 uur SchculuhJ H~tntenanc*

Preventive 18 Hai ntenance Equipment Modi f I ca-:

0 tion Design Change 79-S32 Diesels placed in 0

Exercise mode during performance of test on other equipment

( to prevent au to starts, etc)

Thu: l>G h unavallablo lnr a:1111:r~ency aervlce because of required U*U PT 22.3 44 PT 18.2.

Special PT 22.3's 30 Dloael Oenorator 9-hd llowntiao Record Calendar Ye~~

lloura of D01,1nttae Reactor 11hutdown Rcactol' not uhutdown u~,

UGI

urr, IJl;I -orrr.m, WI JCI

64.

5 0

14 36 7

0 17 59 61 19 12 0

0 10 57 38 25 22 41 19 11 16 17 46 UL.I Enclosure I Ase 2..

Plant Ha.o----

Un lt Ho.

-1.,_&_L_

Comaenta

- 58 hours6.712963e-4 days 0.0161 hours 9.589947e-5 weeks 2.2069e-5 months of EDG~2 1s maintenance was replacement of exhaust system In anticipation of pending failure.

e e

I I

i

I

{

I I

i

\\ !

Ple1111l Ccnerntor -UnucheduhJ D CMlundar Year 19.,!!E u llocord t:ncloaure l r Inn t H11*11 Unlt Ho.

,.-----------------,.,C~o:::P1111:::-::c:-:::n.:-t~11---...1ntr-::n:::n-:::y""'7o~

rt~:h..i reported fa llu res wou Id not hava Leen a I.ER Abatuct If*

DowntllMI lloura (olluro undo'r emergency condltlona, plea11e e11plaln here, (Rater to *ttcl Total rrouble- -*arca,Del

Repair/

Refer to attached LEns or the failures llated ln Table 1. ~..

41 ed U:ll Ab11trac1 s) 11 Unit 2 - 1 Unltl-1 No. LER 2

3 28 29 30 31 32 33 34 35 aura shooctns lvery,etc tcplace 0

0 3

0 6

3 8

2 6

0 0

0 2

-o 1

6 0

5 0

0 0

0 1

0 0

1 5

1 2

2 1

0 0

0 2-LER-80 \\o.Ould not have been failure under emergency conditions as test showed diesel to start properly when preferred start 2 was selected 1-LER-80 This was not a failure - The EOG was available for emerge operation 1-LER-80-66 e

1-LER-80 Th Is \\\\OU 1 d not be a fa i-1 ure under emergency cond It Ions.

The base tank and day tank were full (8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months fuel supply High oil temperature Replaced Fuel 011 Fl 1 ter Cartridge High oil temperature alarm Fuel 011 leak Would not start on preferred start 1 - W>uld not be a failure during an actua 1 emergency.

e Would not start on preferred start 1, started using_ preferred start 2 Wou Id not be a fa 11 ure dur Ing actua 1 emergency Failed to start on preferred start 1, started using preferred start 2.

Would! not be a failure during actual emergency.

Preferred start 2 failed to start EOG 1 during 5 attemps preferred star 1 verified to function properly.

EOG was avall,~le for actual emergenc

... - ---. -------~---=--.,.-:--.. ~~--:---:---------------:-------,------~

-~- *

-**" **** **...... ---**,.~*...... **--'-"'""--'-~-"'*._.,..__ ___ ---*** ~-- ---

**-*"** * -~-" *. ~---**** **w-** '-.,,.. -~.. *-*--*~

-~

-............. -----~-----* ***-**'-***--**--.. *-~ **-.. -

~IIL:IU:>un: C.

0/~.10000001-0000001//

1 PAGE S51 CE TL

~p TL:

PE MO AIL

sTRACT N NO.

or.. PONt:tlT COUL YSTEf'-

t.ODE oozo 1 bl 973 DIESEL GENEHATOR FAILS 10 START MANUALLY AT SUkRY 2 Vl~GlNlA ~LELlRl~ & POWER CO*

l 9bu Q

L'IR W.ILER 80-042 TO U.S. NRCe REGION Ze OEC 11. 19BO. DOCKET

~0-,01. TYPL........PWR. MFG~wES1. AE--~&w. DCS NO.--S012170u46 AVAILASlLlTY -

NRC PUBLIC OOCUMcNT ROOMe 1717 H STR~ETe W~SHlNGlON. O. C.

205~~

l05 CENT~/PAGE -- MINIMUM CHARGE

$c.~~,

OAlE OF EV~~, -

111~60.

PO~~R-LEVEL -

1oox.

CAUSE -

WORN VANES 0~ Al~ MuTO~.

NO. 3 EDG FAILED TO START MANUALLY F~OM 1H£ CONTkOL ROOM.

PREFLkkED START 2 WAS SELECTcO A~D TH~ EOG S 1 AJ:.. Teo NORt-\\A.L.LY.

lhc VANES ON 1 He A 1~ MOTOR WERE WORN BEYOND ACCEP1Af,LE LlMllS A~v THtREl:SY PF<EVENTlNG THE MOTOR FRO~

ROTATING.

ltt VA.NE~ WERc RtPAlRtO ANv 1ES1EC TO PROVE

.:JPE"ACIILllY.

MC.TCJR"--t-1Ul Uk~

E~-~~LRu GtN:RATOh SYS t CONTROLS

1.;:

i *'

I :-

I; I'.

TAUl.t: 4

--t!,1ufp1ae:11t or l'hlc&:Jura 11.oJ ( f tcJ PT 18.2 PT 18.2 Design Change 79-S32 1-PT-22.3A 1-PT-22.JC 2-PT-22.3B 1-PT-22.JA PT-22.3A 1-PT-22.3C PT-22.3B 2-PT-22.3C 1-PT-22.3A 1 -PT-2i.3C Onltlu l!f111rgaancy lH

.Au1<Uhry ~quipaaant aanu rotor,uul U &: u &; I on lhu:I) nl Enclosure l - Pae 1*Jn11t H,unaa Sur Uutt Hu.

D.Ca of lto~aon for Ho,I Uicut ton and Hod.

llc11ircd luipruva:1aant Duacrtption of Hod1flcotton 1/3/80 Typo's and to conform with Q.C.

Add to step 1.0

1. Nuclear Power Station Quality Assuranc Manual

2. T.S. 4.11 3 ~

T.S. 4.6

4. OP-6

5. OP-3

Page 9 - Valve sheet check off - change TV-DA-100B to 11open11 for 410n after SI.

Page 12 -Valve sheet check off**- change TV-DA-lOOA to open for position after SI.

6/12/80 Complete update Add second signature verification for Jwnpers clarity on some steps.

6/5/79 12/4/80 9/4/80 7/2/80 4/2/80 Add TV-DA-200A*& 2008 TV-HS-209 & 210 to SI, Replace and or add pipe supports Increase SISHEC resistance of piping Change to reflect actual equipment Figures 1, 2, 3 revised e

Typo-5.4 the numera 1 11111 should be a 11211 t+Jtor driven L,O. checks during last Add - motor driven lube oll pump vibration checks.

3 months - 2,of 3 pwnp:motor bear-ings have fa,lled Turbo charges bring vlbrat_l~!' checks Insure safety related valve Change step 5.7 to Incorporate "performed by'!

positions are Independently verified under 1 Initial blank and another lnltlal blank for "verified by11 *

¥

').;

~,,_

<<,'l/~1*0~00001-0000~-J-~~,*---.-l.

e ACCE~~lON

~TH

~:JI' MEMO AVAIL A8STRACT NO.

COMi>ONt: NT C.00(

SYS.Tt.r,,, COi.JE 00*20161 t,H, EJ.\\i.:RC.c.NCY l:JU5 OJT OF.PHl.!:,E TRAN!:,FER POS::,IBLE Al !,UR~Y J VIRGINIA ELCCTRJC & POWEk CO.

1960 Q

LTR W/LEW 80-070 TO u.5. NRC. RtGJON ~. NOV 2b. J~eo. ~CC~ET so-zso. lYPf~Pw~. ~F~--~EST. AE--S&w. DCS N0.~6Cl206U7Qy AVAlLAb)LlTY -

NRC PUBLIC oocu~~Nl ROuM. 1717 H STREET.

WA!:,HINGT~N. u. C.

205~5 (0~ C.CNlS/PAGc. ~ MINIMUM CHA~GE s.c.c>OJ O~TE OF EVc~l -

lll48C.

POWER LEV~L - ooo~.

CAUSE -

OESIG~

ER~o.~. HtCAU~ THC:~E I$ NO OC.FlflilTJYE. PHASE RELATlONSHl?

8ll~r-~~ THE OF~-!:,lTE SOURCE A~O THE tOG VOLTAGc5 A~D NO ll~E l'ERMJ~51Vc e:o~ COLLAP51NG THt. Rt:S1L)UA.L VOLTAG~. AN OUl-OF-P!-iA.SE TkANSFER ~l~HT OCCuK WHEN THC EMcRG~NCY BUSES A~E T~AN~FE~HEO FROM THt OFF-Sile SUU~CE TO THE COG.

THE CAU~E OF THIS OE~lbN ER~OR HA~ NUT bEcN 0£1ER~JN£0.

A llME DELAY CIRCUIT WAS IN~TALLtt* ON Tt-t i.D~ OUTfJUT SREAKEF< TO ALLOW A ~.o SECCNO TIME DELAY DtTwEE~ THE OPcNl~G UF THE UFF-~ITE SUPPLY ~~EAKt~~ A~u C.L05JNu Of THC: to~ b*H::AK.Ek~.

THIS. IS A Tl:Mi->ORARY MOL>IF lCAlIOI\\:.

A UESl~N CHANG[ *ILL b~ CO~PLE1Eu TO PRUVIDc Fl~AL RESOLUTION.

C~Tb~K-Cl~CUIT CLOSf~~/INTER~UPTt:RS E~-EM~~G ~ENt~ATO~ ~YS £ CONTROL!:,

t:9 / e:. / C, 0 vu() C 1 -0 0 0 00 11,/ /

2

'-CCESSIUI\\. NO.

Tl1Ll CCJ-lPJ.Ul t;.

OAT:.

T\\'Pt:.

McMI,;

AVAIL

T~.t.L T COMPUhlt:.Nl CUDE SY!>lEM CO.lC OOLOlbO'ii'~

OlE.~,=L <.,c..Nt::.J{ATU~

t>A!:.C:

TANI\\. LC.VEL FALLS BELOW LlMl l AT StJl-lkY

1 Vl~GlNlA tLt~TRJC ~.PLJ~E~ CO.

I l:ibO Q

LlR W/LC~ 80--0ub T~ u.~. NRC. REGIO~ 2. OCT 2. l~oo.

~OCKET

~O-Zdv. lYPl--Pw~. kFG--WEST. AE--S&w A~AILAulLITY -

NRC PUULIC DOCU~cNl ROOM. 1717 H STREET.

t11ASHINGlON. u. C.

2U5t:J~

(0~ CtNT~/PAGE -

MINIMUM CHARGE

s. C:* o.:i)

-s OAT~ OF tVE~T -

0Y02~u.

POwER LEV~L -

083~.

CAUSE -

~TUCK LeVEL CUNTRUL S.WlTCH.

THE MONTHLY OPERATIONAL TEST OF NO.

1 E~tRGENCY OlE~EL ~~N:kATO~

~A~ ATTtM?T~u.

AFTtR PLACING DJESEt GENt~Aluk ON LlNt. IT ~AS DJ~COV~RtO THAl THc BA5E TANK LEVEL HAU D~OPPCO 10 loo GALL0~5 ~JTHOUT BEING REPL~NlSHEO AUTOMATlCALL~ FRLM lHt ~AY lANKe lHc. BASE TANK LtVEL CONTROL SWllCH ll,A~ t-OUl'IIO TO be. S.TJC.Kl,-.;C..

THE:. LEVt:L.CONl.:tOL SWlrCH WAS RCTU~NCD lu NuRMAL ~Pc.RATluN Al'IID THE SA~E TANK ~EPLENI~NEO.

INSlRU-l~~TRUM(NlATlON ANU CONTRUL&

EC-t~ER~ G~N~RAlUR ~y~ ~ CONTROLS 69~~/000~uo1-ouoouJJ//

3 AC.CE~~ 1 ON NO.

TITLE CO~P/.UTH OA.1~

TYPE ME.~~

I AVAIL AOST~ACT

\\

CO.. f-'ONEflfT CODE 5YSTEf4 COOE 0 CiZ ll I !><.i. t:c=e OlE~EL FULL ~IL PUMP Cl~CUIT BR~~~ER FOUND OPEN ~T SURRY l

VJk~INlA E.LtCTHIC & PO~EW CO.

l9b0 L TR Wl'Lf:.h: b0-044 TC, U.!>>. NRC* Ht~ION 2* AUG b* 1960*

DOCKET

~o-2so. IYPE--Pw~. MFG--wE~T. AE--!>>&W AVAILAB1Ll1Y -

NRC PUDLlC OOCUME~T ROOM. 1717 H STREET.

WAS.HJNG,TlJN* ~. Ce 20555 lOli C.ENTS/PAC.E -

MINIMUM CHARGE S"-* OCI J DATE OF LVENT -

070760.

PD~CR LEVCL -

ooo~.

CAUSE -

fll\\AINTE.NANC.t ERRO~.

WHILC 1->~Rt-O~MING A F'ER10D1C TE~T WHICH H Dt~lGNcO TO PHDVE THE UPERAOILllY OF THt DIESCL FUEL OIL THANS.FcR PU~?$* '11 WAS FOUND THAT lHE CIRCUIT ~REAKER FOR 1-tt...P-JF WA~ OPcN.

THE ALTEHNATE FLOW PATH TH~OUGtt 1-EE-P-3 WA~ OPtkABL~* ll1C ~RC~K~R ~A~ INADV~RTtNTLY OP~NED bY PERSQNt

-Of<~ING IN Tt'£ VICINITY OF lHE MOTO~ CONTROL CENTER.

THE.

bk~A~tN WAS RcCLO~~o ANO THE TE.S.1

~AS COMPLETED SA1I5FACTORl1 CK Tti~...._-C. ikCU 1l CLUSERS/'l NTERkUPlER~

EE-E:.MekG ~LNCHATOR 5YS & CONlROLS b91's,~0~0001-000~01sl',

4 ACCL~51UN NO.

0~201~~~71 TITLL OltStL ~~NEH~TCJR 1 TUkUU-CHARGCR FAILS AT SURRY l CUJU*'AUTti YUH>>INIA E.Lt.Cnuc. £ PUWE.R c.o ** WIC:HMOND. VA D.t.Tt:.

l~&O TYPC Q

a I

I I

I

\\

ML18139B623

Contents

Text

Subject:

Attachment:

Attachment:

Attachment:

Attachment:

Attachment:

Attachment:

Attachment:

Navigation menu

ML18139B623

Text

Subject:

Attachment:

Attachment:

Attachment:

Attachment:

Attachment:

Attachment:

Attachment:

Navigation menu

Search