ML20010H502
| ML20010H502 | |
| Person / Time | |
|---|---|
| Site: | Farley  |
| Issue date: | 07/31/1981 |
| From: | Clayton F ALABAMA POWER CO. |
| To: | James O'Reilly NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
| References | |
| IEB-79-15, NUDOCS 8109240546 | |
| Download: ML20010H502 (1) | |
Text
,
Milling Addr;ss Alabama Power Company 600 North 18th Street Pest Office Box 2641 Birmingham Alabama 35291
.. -' l 'c.'
Telephone 205 783-6081 b
F. L. Clayton, Jr.
$"Ed$'Ofg*"'
Alabama Power I
5 "ll: I, u so,- - c sys m July 31, 1981
/d.. \\}'k[te Docket No. 50-348
'p'A, No. 50-364 x,
l:l \\g C~c Mr. James P. O'Reilly, Director p
cp 2
U. S. Nuclear Regulatory Commission g3 7
Region II, Suite 3100 Q
3 70 101 Marietta Street N. W.
'G
.x j
y, Atlanta, Georgia 30303
/' /2 g/
Dear Mr. O'Reilly:
On July 15, 1981 the resident NRC inspector for the Farley Nuclear Plant notified Alabama Power Company that the NRC Region II office was verbally requesting an updated response for IE Bulletin 79-15 by July 31, 1981.
The last update response for IE Bulletin 79-15 was dated February 26, 1980.
In that response two items addressed were being evaluated / implemented.
1.
2-26-80 Response: Alabama Power is working with Byron Jackson on the solution to the failures experienced on the lower section bell bearings of the Unit 1 River Water pumps.
Update Response:
The architect engineers are presently evaluating design recommendations made by Byron Jackson and will provide design changes as necessary.
2.
2-26-80 Response: Based on experience with the River Water Lube and Cooling lines, design and procurement is in progress to install a Sullectron Water treater on the Unit 1 Service Water Lube and Cooling Water Supply lines.
Update Response: The Sullectron Water Treater has been installed.
If you have any questions, please advise.
Yours very't}uly C l e 1 w W, L' e
.pyi F. L. Clayton, Jr.
3 FLCjr/ JAR:rt g
cc: Mr. R. A. Thomas Mr. G. F. Trowbridge Mr. E. A. Reeves Mr. J. O. Thoma Mr. W. H. Bradford 8109240546 810731 PDR ADOCK 05000 u
f' l
r,,, ro.n ce w aoy C '.0 t h n lini Sp t
.o rv' O Oox 20 f t Uin N;n, /tly : i * 'O1 T ::e;J an ? 20
,'M,
,h
/-.,
Js A T. L CL AYTOi4, Jn
/Malm power kna vu rma,t nw w, July 31, 1981 Docket No.50-34n Docket tio. 50-3G4 Director of f;uclear Reactor Regulation U. S. f!uclear Psegulatory Commission Washington, D. C.
20555 Attention: 11r. S. A. Varga IIr. C. J. Youngblood TEliPORARY CHANGE TO OPERATING LICENSE NO. f:PF-2 /\\UD NPF-8 TECMICAL SPECIFICAT10!;5 Gentlemen:
While attemptirr to perform the routine 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> synch: anous load sur--
veillence test (Sectica 4.8.1.1.2.a.5) on Diesel 1C, it was determined that jacket cooling water had entered the liner of four cylinders. The problem was discovered at 12: f a.m. en July 30, 1981 end the diesel declared in-operable.
On furtf. r investigation of the number 11 cylinder,the vrist pin and bushings concer. ting the upper pisten to the connecting rod were badly worn, the 0-ring tmen the jacket water system and the air intake system was failed, and the nu12er 11 piston and cylin'ier were badl; scored (shown in figure 1).
It i: wiieved that the wrist pin and bushings, after becoming excessively wer,
j;ad nons;mtrical forces betucen the piston and the liner.
Such a.:.
vical loading caused a scuffing of the liner and the piston generating scver cmounts of heat, thereby causing 0-ring failure.
Do" to 0-ring fa.im..ater entered into the number 11 lirer. Water was distributed to etL ' cylinders through the air intake system while the engine was at rest.
E addition excessive play between the upper auf lower cranksh:ft was found upon disassembly.
Currently, Ald:.a-- Power Company, with a team of engineers and technicians from Colt Industrias, is undertaking a thorough investigation / repair program.
Such progren begsn the morning of July 30, 1981. Assuaing the failures and subsequent dn.. ge is confined to that describad above, engine disassembly, troubleshootir.g and repair, engine reassembly, anJ replace nt of lubricating oil along with attendant engine run in and operability tests is schedaled to be co.npleted within nine (9) days of the date of the problem discovery. liore explicitly this t epair will includo replacenent of the liner, 0-rings and gastets, upi.ee and louc pistons, upper wrist pin and bushing for the number 11 cylirder, and repair of the upper and lower crankshaf t conn. ting assembly.
In additio, pins and bushings in the remaining upper pistons will be inspected and replaced as necessary.
kY We
01 rector orTIIKre6F Pactor Y691uYaTion
~
r r
Temporary Change to p erating License 2
flo. IIPF-2 and fiPF-8 lechnical Specifications July 31, 1931 Page 2 A hydrostatic test to verify satisfactory repair and to verify the adequacy cf the remaining cylinder 0-rings and gaskets will be performed.
If damage. is more extensive or if the failures involve other causes (e.g., liner cracking)-
the return to service time could be longer than the present schedule.
Alabama Power requests a revision to the Appendix A Technical Specifi-cations for Units 1 and 2 included as Attachment 1.
Th;s one time exception trould allow a six (6) day extension to the L.C.O. for repair of Diesel lC while operating Units 1 am] 2.
In addition, Alabama Potter Company proposes to demonstrate the op?rebility of the remaining A.C. sources by performing surveillance requirements of Section 4.8.1.1.2.a.4 within one hour and at least once per 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> rather than within one hour and at least once per 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> thereafter.
Due to expected time required to repair diesel generator 1C, approximately 120 starts on the remaining diesels would be required by Section 4.8.1.1.2.a.4.
The diesel manufacturer does not recommend the testi g frequency required during the period needed to repair diesel generator 1C due to potential accelerated wear.
In addition, all transmission lines feeding the Farley fluclear Plant switchyard are currently operable with no l
interruptions scheduled during this repair.
The generation from Unit 1 and Unit 2 is essential at this time since as a member of the Southern Company Power Peal, Alabama Power Company is a not purchaser of both canacity and energy. Alabama Power Company's principal hydroelectric storage reservoirs are at a critically low level with operation sevwely curtailed due to lack of rainfall. At this time, 900 megawatts of hydroelectric generation capacity cannot be used without excessive drawdo.in of reservoirs.
If such adverse conditions are not alleviated or if they are further exacerbated b; the inability of Farley Uni: 1 and Unit 2 to ge wrate power, Alabama Power Co wny will be required to implement its plan for curtailment of po e r to its customers.
It is requested that approval of this change to the Technical Specifi-cations be grant r before 5:00 p.m. July 31, 1981 in order that the generation of Unit 1 and Unit 2 not be impacted.
Alabama Pc.:ar Ccapany has reviewed this proposed change to the Technical SpecificatOns by the Plant Operations Review Cen:nittee and the fluclear Operatiers Revien Board and has determined that such changes do not involve an unreviewed safety question as shown in the safety evaluation with detailed bucs included -in Attachment 2.
I I
The class vf each item in this proposed amendment is designed as Class Ill for Unit 1 and Class I for Unit 2. according to 10CFR170.22 requirements.
Enclosed is a check for 54,400 to cover the total amount of fees required.
I In accordance v.ith 10CFR50.30(c)(1)(i), three signed originals and thirty-seven (37) additional copies of these proposed changts are enclosed.
r t
.o Director of INelear Reactor Regulation July 30, 1981 Page Three If you have any questions, please advise.
Yours very truly,
{\\
3. i /;, '
f-L..
.t, q,,( A F. L. Clayton, Jr.
'l
/
FLCJr/RLG:nac Enclosures f.c:
Mr. J. P. O'Reilly (u/ enclosures)
Sworn to and subscribed before r
Mr. R. A. Thomas (w/ enclosures)
/-
_ day ofs.r-me this a<
.U lir. G. F. Troubridge (w/ enclosures)
Mr. E. A. Reeve <.,
(w/ enclosures) 19~7; Mr. L. L. Kir,tner (w/ enclosures)
Mr. W. H. Bradford (w/ enclosures)
,,. /3(,
/ ',.,
e <x.
v -
3';
flotaiy Public My Commission Expires:
c.
, [g i I
e )
AbWu rc. war Company US t:m:L Ic... Stm4 Pc A Off w IN< ?M1 e.m
,%m. Al dam 3',2M T< kphne 205 200-1000
[\\
F. L. CLAYTo N, J1.
gghang pggg, conu vu msent Y
v,e w
~n ci w
July 31, 1981 Docket No. 50-348 Docket No.60-364 Director of Nuclear Reactor Regulation U. S. fluclear Regulatory Commission Washington, D. C.
20555 Attention: fir. S. A. Varga Mr. B. J. Youngblood TEMPORARY CHANGE TO OPERATING LICENSE t'0. NPF-2 M D NPF-8 TECHNICAL SPECIFICATIONS Centican:
While attempting to perform the routine 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> synchronous load sur-veillance test. (Section 4.8.1.1.2.a.5) on Diesel lc, it was determined that jacket cooling water had entered the liner of four cy.inders.
The problen was discovered at 12:50 a.m. on July 30, 1981 and the diesel declared in-operable. On further investigation or the number 11 cylinder, the wrist sin and bushings connecting the upp< r piston to the conncctinq rod were badly worn, the 0-ring between the jacket water system and the air intake s was failed, and the number 11 piston and cylinder were bedly scored _(ysten shown in Figure 1).
It.s believed that the wrist pin and bushings, after beco. ming excessively worn, indxed nonsymetrical forces between the piston and the liner.
Such nonsp.rical loading caused a scuffing of the liner and the piston generating severe amounts of heat, thereby causing 0-ring fa.lu m.
Due to 0-ring failure, water entered into the number 11 liner. Water was distribute _ to otW cylinders through the air intake system while the engine was at rest.
In addition exccssive play between the upper and lower crankshaft was found upon disassembly.
Currently, Alabama Power Company, with a team of engineers and technicians from Colt Industries, is undertaking a thorough investigation / repair program.
Such progren began the morning of July 30, 1981. Assuming the failures and subsequent damage is confined to that described above, engine disassembly,-
troubleshooting and repair, engine reassembly, and replacement of lubricating oil along with attendant engine run in and operability tests is scheduled to be completed within nine (9) days of the date of the problem ::scovery.
More explicitly this repair will include replacement of the liner, 0. rings and gaskets, upper and lower pistons, upper wrist pin and bushing for the number 11 cylinder, and repair of the upper and lower crankshaft connecting assembly.
In addition, pins and bushings in the remaining upper pistons will be inspected and replaced as necessary.
r mrrecurvryarclear RMcCor Regurrion Temporary Changa to Operating License
.' !!o. !!PF-2 and liPF-8 Technical Specifications July 31, 1981 Page 2 A hydrostatic test to verify satisfactory repair and to verify the adequacy of the remaining cylinder 0-rings and gaskets will be performed.
If damage is j
more extensive or if the failures involve other causes (e.g., liner cracking) the return to service ti..le could be longer than the present schedule.
i Alabama Power requests a revision to the Appendix A Technical Specifi-cations for Units 1 arid 2 inciaded as Attachment 1.
This one time exception
~~
would allow a six (6) day extension to the L.C.O. for repair of Diesel 1C while operating Units 1 and 2.
In additien, Alabama Pow r Company proposes to demonstrate the operability of the remaining A.C. sources by performing surveillance requiremants of Section 4.8.1.1.2.a.4 within one hour and at least once per 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> rathtc than within one hour and at least once per 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> thereafter.
Due to expected time required to repair diesel generator 1C, approximately 120 starts on the remaining diesels uculd be required by Section 4.8.1.1.2.a.4.
The diesel manufacturer does not reco:! mend the testing frequency required during the period rieeded to repair diesel generator 1C due to potential accelerated wear.
In addition, all transmission lines feeding the Farley !!uclear Plant switchyard are currently operable with no interruptions scheduled during this repair.
The generation from Unit 1 and Unit 2 is essential at inis time since as a, ember of the Southern Company Power Pool, Alabama Power Company is a net purchaser of both capacity and energy.
Alabama Power Company's principal hydroel tric storace reservoirs are at a critically low level with operation soverely curtailed dua to lack of rainfall. At this cime, 900 megawatts cf
.P.
11 Jroelectric generation capacity cannot be used without excessive drawdown of rc servoirs.
If such adverse conditions are not alleviated or if they are further exacerbated by the inability of Farley Unit 1 and U:,it 2 to generate povier, Alabama Power Coapany will be required to implement its plan for curtailment of pawac to its customers.
It is requested that approval of this change to the Technical Specifi-cations. be grvnted Ware 5:00 p.r:. July 31, 1981 in order that the generation of Unit 1 and Unit 2 nac be impacted.
l Alabana Pcuer Company has reviewed this proposed change to the Technical Specificati?n.; by the Plant Operations Review Comittee and the
!!uclear Operations Rev jew Board and has determined that such changes do not involve an unreviev:ed safety question as shown in the safety evaluation with detailed bu es included in Attachment 2.
The class of each item in this proposed amendment is designed as Class III for Unit 1 and Class I for Unit 2 according to 10CFR170.22 requirements.
Enclosed is a check for $4,400 to cover the total amount of fees required.
In accordant, with 10CFR50.30(c)(1)(i), three signed originals and thirty-seven (37) additional copies of these proposed changes are enclosed, 4
s
Director of I!uclear Reactor Regulation July 30,1981 Page Three If you have any questions, please advise.
Yours very truly, 1
sg'[., t.
, [-
h,.
j
_ 3%
-' 7
-l,. \\,/j F. L. Clayton, fr.
'/
FLCJr/RLG:nac Enclosures
]
l
>xc:
Mr. J. P. O'Reilly (w/ enclosures)
Sworn to and subscribed before Mr. R. A. Thor.:as (w/enclor,ures)
-r i
ir.e this m '-
day of v t' 'v i
fir. G. F. Trowbridge (w/ enclosures) lic. E. A. Reeves
'(w/ closures) 19P.'
Mr. L. L. Kintner (w/tnelosures) l Mr. W. II. Bradford (w/ enclosures)
{
/.
- /.'v,
j
.i.,
. ed.e.,
/ (7;,
{
Et'a:y PubT1c j
My Commission Expires:
i l
f
.? J,, [;,
.I r
i d
i~
b
+
I r
i i
t Yu==*---
-w---e-mwew,--erww.w--._
ren-w
+-,**-e---mm-y-r,---------wwe--,---*-mg ww ne--+--e-
u p
v ~ ~. F.,~ %3, t
VIT l g~
.J 7
c,
!c f : ,
9,s y
.h 8
..,. ; L - AIR
'~
,# fj g
' ; (I3h p.
N
,o
[
il I' j
} ' k l ' :'=jl=Q JKit. ?i;&r y---l i &, m l,-:-.
^
s -QW'::m w- 'gw -u Q
.,f G'
N y
s/ - As*_
m O.n 1
M is
/'t
't
...F O..-
L u
-2""
Wt x _..-:
! Mhu '
-x,h-!
l j
Q.
%:e iq~aV O
fit b - % j %:IJ*7,d'=t l(~ j\\d
~.~';sy,E_ 01;c n \\
y f)h' c4z f
~1 m ya.%w l
b
!II.RC' U :!
2 i
i s
Q;.*.g y.%-K [ ~
ll.5-~;ylQ7; y '-Mw._ : ' '
r - - 3,., i,.
- 9. e.
l-'
7c3o e ;
e g s
/
{
e e.i e c :.-(:
61 H il T lT,'b
[-.s E !j M ' NO 4, E
l7 i
\\$
ll en
.si l', --- ----- 's
-- --- f. P ]L,' h ~f Q I
,,pg P""i } " ] g(
~~
hll o
,c -
,%N.
, g er,.)y' !
!y?
- i
[ k h]{! ['p i{[
jj.j, a
\\f -
~
b i
I
$,]
.j N.
k j-f f.
h3![///}
$46,%
fj-h-J h%
! Em. -../
\\
.l!
[
@5syhhRM}.f[D$/d[.,(M)[@ p.
1-E 7
-- -=j j~QQ g
- =
.a
_cu
~
n.
!;l\\ f:.p{ f.p.
1,*
~ ~.
{!
$ V ENr.
i.!
cr c f
>:.'!. - -~ ~
j,9 I
p *h -
-- m -
-Ls W.'?
s
.j t<
c U$'
O IssJ*
.pr f *:~...Q
- i c 3M.-
t 4
Fy -- ;f
_7 s
, t ~.
t.l_. ~ e
/p N
l T'9k o
x
...m a m >
t-gr o
Q,i.d', b l
'~\\
4 r
r..
WI e,
l t.:= M : C. 3.i , & s. c,_ % " A9 m -} i~ o m - ? ' e. . l.,/,/',,& =;'.Q.u). -.a w$ )]
- (v- ' ^ ~ Y,? '
N il$5 - f. T'.%. G C; 7. u.P; a a e-.. n m. ' W:=: ~ n... y r e~. ~.-- ..M q 1 A. Q ^ s d e wms j ,.[]%::-E<k ! y tw.m f L. _ l'./ a-e l 3,i ! (7r t c /t f/ ../ en 'lq 4 g + 7 ..; - ;P;3 / t / I. \\ \\ c,. - -'4 .p;.9 s . u n d x ,ef:., -... A a,i y .y c \\ n. v :- w se o _t - - a.g_j.i,4 q.:. y,kgr l' N.,,,l .,/ 4, Q - i i / 's, ' '.x G \\Q -ly., %]--.. J..w,...':.._. t< J ...-_. ;.. f. ft.(:,. .. '.; y.__, -.,/ j-s 1, ~., -Q.c > f w [...,.2.%,y. M.:--.m....
- s..
[ 1 i ..j q m y. 3.y v,g u .ya x % -l'T r; 1 P] 'i! }y ' M "Q c - - - - - N P,:imo 3 ,,,~ g i 7-:= ~ ' ' %N. Q. y O =.,: i I I l\\ 1:==. [- - - - - - - :,t l :, j r Q t/J/'45T i .4, t \\., f
- , g, N..
ll/O l /[ *.. h ._.m . /.// a. /
- b,,w MOG / /f t,b L==
- :
F siv lll Tl'l [ %; / /.UG i \\\\ S k - %.aEm 2 j i'y l j. /gg, g (g,g(/ '~~ 'o g'% , i:j ) I I/ f@ N b. .%p.,2 ', 1,, 4; m.r'.p,,..~r. L, h sT-MM c;; 1.m\\r n.& d' d %q/ ;%-- g i G .w dl l- - \\C a \\'.1_ '.'/ [ k.- L SV , \\ ! 4 h.wy", @5pM,, .1 i / t f\\ s : i.-W~. -4.7f .f. w A. t t \\. pl%, it,!N,, } .a y:f} M.. p. } .:,s I K j.'a i \\' i ? k) s ./ I 9 r/ l N ~ [ rf -/ 16 0/M [ V [ TURB36U"LPCH/ RLED \\ ~ %*/ 81d0 0.f' ENME %(%.,,,,r.,y. ',,,.. ~ 12 CYL. CROSS S:CI;CN 4
.7 Obf.MTli:G ( ( I IMilIUG CD:mn10h FO:t OPERATm 3.8.1.1 A c. a minimu.;i, th follo, ting A.C. electrical pauer suces sbll be OPER.CLE: a. Two phys ical b. independent c-ircuits from the offsite transraission newtork to lie suitchyard and two physically indipendent circuits
- f. um the suiltb>ard to the casite Class Il distributien systc..i, and b.
hio separate and in : pendent diesel generalor sets (cne /i075 Kw and ona 28b0 Ku) cach with: 1. Separa te day tanks containing a r inimum volume of 900 gallons of fuel for the 4075 i:w diesel generators and 700 gallons of fuel for the 2850 i diesel generators. 2. A separate fuel trensicr pmcp for each diesel. A fuel storage system consisting of four independent storage c. tanks each containing a minimum of 25,000 gallons of.ael. APPLIU31LITY: MODES 1, 2, 3 and 4. ACTIO::: With either an offsite circt it or a diesel gerierator set of the a. above iequired A.r. electricul power :,ources inoperable, de rn-strate the OPEU.31LITY of the rmaining A.C. soucces by per-forming Surveillance Require.m.ts 4.8.1.1.1.a and 4.8.1.1.2.a.4 within one hour and at le'st once per 871ours thereafter; t estore at lean twa of fsite circuits and both diesel generator sets to OPERABLE status within 721' hours or be in at least HDT STANO3Y uithin the next 5 h .n atM in COLD 5HUTDOUU within the follcuing 30 hours. b. With cne offs'.u circuit and one c'.e el generator set.of the abovt requird ~. rlectrical pos ;ources inoperable, der:n-str&Le the CPf! rt lTY of the remaining A.C. sources by perfcrm-ing Surveil r c-i:.;virements 4.8.1.1.1.3a and 4.8.1.1.2.a.4 within one I,m and et leest once per 8 f,1 ars thereaf ter; restore a t ler one of the inoperable sources to OPE.%CLE sta tus within 12 hours or be in at least liOT STATEiY ',:ithin thc nt :t 6 hourt. and in COLD S!!llfDOMN uithin the following 30 hours. hestore at iust two offsite circuits and both diesel i genetalc m '.s to OPEM.DLE status within 72* hours frw the time l of initial les er be in at leas: H0f SlANDBY uilhin the next 6 hours am' in ECLD 5HUIDOUH wi,hin the following 30 hours.
- 0r tir.e only meej tion for repair of Di' iol IC - the 72 hour action sta te:ent -
for operability cf Diesel IC may be extended to a period of 9 days providef Diesel 1C is returned to OPERABLE status as soon cs maintenance is completed. The provisions of spxificatien 3.0.4 are not cpplicable for this one time change.
- 000 time only exception during repair of Diesel IC - the 8 hour interval test is extended to 72 hours.
FARLEY-U::IT 1 3/4 8-1 h U @h.5'd
r I!ith two of the above required ofIsite A.C. circuiit inoper-c. able, <? monstrate th^ CPUmBILITY of both diesel p erator rets by performing Surteillance Require:aent 4.8.1.1.2.a.4 within om hour and tL least once per 8 hours thereaf ter, unless.Lhe diesel generators are already operating; restore at least enn of Ibe incarable of fsite sources to OPEf2LE status within 24 hours 1r 'n in at least. !!0T STANUDY uithin the next, 6 hours. i!ith enly cm offsite source restored, restore at. least. lxo offsite circuits to OPE!PN E status within 72 hours frta tilhe of initici loss or be in at least HOT ST/E3Y within .the next 6 hours ed in COLD Sil0100WH uithin the following 30 hours. d. With both of the above required diesel generator sets inoperable, deianstrate the OPE RMILITY of two of fsite A.C. circuits by performing Surveillance Requirement 4.8.1.1.1.a uithin one hour arol al least once per 8 hourFLhereaf ter; restore at l least one of the inoperable diesel gcmtor sets to OPE!WJLE status within 2 houc. or be in at lea N 90T STAPDBY uitnin the next 6 hour' i in C0t.D S!!UfDOWN within the folloui.y 30 hours. kes both diesel generator sets to OPEPAULE status within 721' hours frsa time of initial loss or be in ct least HOT { STANDBY within the nixt 6 hours and in COLD SHUTDOWN within the following 30 hcurs. SURVETil AHrr. REgtlinEEN75 4.8.1.1.1 Each of the c.ne independent circuits '-i xn the offsite d transmission networi: 6.) the onsite Class IE distribution systera shall be: Deternined OH '" ~ tt least once per 7 days by verifying correct a. brcder alir. ' 'r. dica ted power availabili ty, anc b. Dem :ns te: U2 0r 'LE at least once per 10 months during shut-doan by 1:aniic. a, unit power supply from the noral circuit 1.0 the alter.an. iccait. 4.8.1.1.2 Lach dic.v!. _r; Lor set shall be demonstrated OPEPADLE: g At lea:.L ence p: r 31 days, on a STAGGERi.-D TEST DASIS, bv: a. 1. Verifying t b fue; Icvel in the day tank, 2. Vei ifying the fuel level in ihe fuel storage tanh, MisiTuae on;y exce; tion for repair of I 'sel IC - the 72 hour action statement f or operalili ty c." Diesel IC inay be exm ed t.o a period of 9 days provided .esel 1C is returned to OPERABLE status as soon as maintenance is co:nplet.ed. The provisions of specification 3.0.4 arenol cpplicable for this one time change.
- >One time only excrption during repair of Diesel 1C - the 8 hour interval test is extended to 72 hours.
FARLEY-UNIT 1 3/4 8-2
[. [ ( . 4_._. 8_I ! I cl.R._ICA._I POUE_i:S_YST_RIS 3/4.8.1 A.C. SOURCES OPi.RATJNG IUUTING CONDIl10N IOR OPER4TTON 3.8.1.1 As a minimua, the icTlowing A.C. electrical pour sources shall ba OPERABLE: Tuo physicaTly indeperabat circuits between the of fsite transaission a. n'etwork to the swit chyard and two physically independent circuits from th? cuitchyard to the onsite Class lE dist.ribution syste:a, and b. Two separate and indepenJent diesel generato: sets (Set A: DG l-2/s and DC-1C, Set 11: 1& 20 and D&-2C) each with: 1. Separat e day tanks contain-ing a nitripua volor.e of 90 gallons ni f c:1 for the 40/5 kw diesel generators and 700 gillons or fuel.for the 2850 kw diesel generator. 2. A separate fuel transfer pump for each diesel. A fael storage system consisting of four, independent stcrcge c. tat.::s each c(..'.a:ning a mininum of 25,000 gallons of fuel.* APPLICABIL11Y: 110 DES 1, ?, 3 and 4. ( T ACTION: Vith an offsite circuit inoperable, deaonstrate th: DPERT.3ILIlY ci the a. remaining A.C. sources b," ; arioraing Surveillance Requircrents 4.8.1.1.' q crc. 4.8.1.1.2.a.4 within one hour and at least once per 8 hours tbm 9; mstore at least tuo of fsite circuits to OPERAB.E , status withir 77 burs or be it at least. Il0T STAEBY vithin the ta'.t f> hourc cad it. ' LD SliUIDDh'ti w, thin the 1ol1owing 30 hours. o b. With one die-R gcr"rator set inoperable, demonstrate the operability 2 of the rt aining A.C. so: cce.. !.; perforcing Surveillance T.cquirc:: cats 4.8.1.Jft.a cnd 4.0.1.1.2.a.4 uithin one hour and at least cace pr 8 hours thereafter. Restore both diesel generator sets to OPEF:/,BLE status within 7290urs or comply with the following: 1) lie in at least 110T STA"DBY within the next G hours ar.d in C00 5HuiOOKi uithin t':e following 30 hours. ~ iinb~~iiEiidE5fifruJ1 storage tank is equivalent to one inoperable d;esel generator set.
- 0nc time only c>:ception for repair of Diesel IC - the 72 hour actic, statomat for operability of thesel IC may be extended to a period of 9 days pro.ii Diesel 1C is returned to OPERABLE status as soon as maintenance is completed.
The provisions of specifica tion 3.0.4 are not applicable for this one tiue change.
- Cne time only exception during repair of Diesel IC - the 8 hour intervel i
e test is extended t > hours. l FAh..LY-UNIT 2 3/4 8-1
r 3 [CJTON(Continued) ( -( 2) One diesel generator set may be nade inop:n t ?le for Up to 14 d ", s to peFiorn scheduled vaintenanco end tesi c r e diesel ge:. ara to: - ' C (or 2L) provided all the following are sa'.isfied: J a) Unit 1 is in F.0DF S or 6 and. c. aropriab technical speci f ice- .tions tecering the diesel generator sets are satisfied. b) The hr';aing' Unit 2 diesel generators 1-2A, 20,1C (or 2C) are G?i n3LE. c)
- lh: ser rice water system is recirculate:: to the pond and surveClance requiremont 4.7.6.2.1 is vt-rific" prior to re:r.ov n;; 1C (or 2C) from service and on:e per ' hours there dLer.
d) Diesel Generator 1C (or 2C) is returned to 0?ERABLE status as soon as naintenance is. completed. Otherwise, im in at. least il0T STANDuY uithin the text 6 haurs and -in COLD 5!!UlDOW within the following 30 hours. c. Uith one offsjte c'rcuit and one diesel generator set of the above ~ requirad A.C elntrical pover sources inoperable, de.nonst rate ll:- OPi.PABILI TY o f t.hr remaining A.C. sources by performing Surveillence Require: ents I.gl.l.1.a and 4.8.1.1.2.a 4 within one hour and at least once per S hours thereaf ter; restore at least one of the l inoperable snrn; ta OPEMABLE status within 12 hours or be in at least il0T Sk ? uithin the next G hours and in COLD SHUTDOWN 'wiinin the
- ll:<ing 30 hours.
Restore at least two cffsite ci cni : c ' _ 9 diesel generator sets to OPEABli states within 771 hu.- f~ cime of iniLial loss or be in at least 1:0T STANDBY vithin tF' ' ' ' hsurs and in COLD SllulDDWN within the following 30 ho u rr,. d. Uiti two ' F - Mve required of fsite (..C. circo'ts inoperable, demnastn._ t: -,1 RABILITY of bot h diesel generator sets by perf s iz ';, tiance Requirenu:nt 4.8.1.1.2.n.4 uithin one hour and at le.m ve per 8 hou:s thereaf ter, unless the diesel generators an alre dy operAing; restore at least one of the inoperable c' te ources to OPERABLE status within 24 hours or be in et least 'OT SlANDBY vithin the'next 6 hours. Vith only one of fsite som:c rest ored, restore bot h of fsite circuits to OPLRABLE staiUs within 72 hours from tine of initial loss er he in at. least 110T Si/MBY vithin the next G hours and in COLD SHUIDOWN within the felle<ing 30 hours. 'One t b onb J20ption for repair of Diesel IC - the 72 hour action stalecent for operebiiity of Diesel IC may be extend 2d to a period of 9 days provided Diesel 1C is returned to OPERABLI: status as soon as maintenance is completed. The provisions of specificat#on 3.0.4 are not epplicable for this one tind change.
- 0ne time only c::ception during repair of Diesel IC - the B 1.our interval
{ test is extended to 72 hour:. FARLI:Y-UNIT 2 3/4 8-%
r _E_LEciiH_ C.r,L powa_l_sys_[g;3 ,(. I.C'i ION : (ConLinued) Wi th bot's of the above required diesel generator r.et c. i nope rt.bl e, e. demonstrote ihe OpD!FlLlTY of tuo ofisite A.C. circuits by perforiting Surveillante !!equiremnt 4.8.1.1.1.a uithin 1 hour and at least once per E hourTLhereaf ter; restore at least one ei the l inoperable die:.el generator set.s to Opi rat;! F status within 2 heurs or be in at least I!Of SlAND3Y uithin l';e mmt 6 hour. ar.d i: COLD SHUTI:0'..'d within t he following 30 hours. Restore both die:,el genera t or sets to Oh !".DLI: status within 77 hours frca time of initial loss or be in leat.t I!OT STANDBY uithin the r ext 6 ht.urs and in COLD SHUT 00'.TJ uithin the follo. zing 30 hours. SIJRyEli L A'!C[ l@.QiQljEJXHT S _._ _ _ 4.8.1.1.1 F ch of the above required independent circuits bet..een the of fsite trensmissic., neLuark and the ensite Class 1E di:.tribution systea shall be: a. 1 tenainnd OPERAptE al least. ore per 7 day: by verifying currect br, aher alignant.s, indicated power availebi~ a ty, and b. Demonstra ted OPEPAS!.E at least once per 18 i anths during shutdoua by transferring unit pcuer supply from the nor.ial circuit to the altern2te circuiL. 4.8.1.1.2 Each diesel generator shall be demonstra'.al OPabvLE: "1 a. In accordance uita the frequency specified in Table 4.8-1 on a STAGGERLD lEST CASIS by: 1. Verifying the funi level in the day tank, 2. Verifying % 'ucl level in the fuel storage tan':s, 3. Veri fying tb _ ful transie ' pump can be started end transfers fuel irca ti.o s torage system to ti a day tank, 4. Verif;.ng the diesel starts from ambient conditisa end accelerates to :t least 900 rpn, for the 2850 ku generatsr anJ 514 rpm lor da 4076 ku generators, in less than or equal to 10 seconds. Tha generator voltage and frequency shall be h 3952 volts and & 57 Hz uilhin 10 seconds after the sLcrL signal. 5. Vet ifying the generator is synchronized, loaded to crea ter than or eilual to its continuous rating, and operates for greater than or equal CG minoL6, W0iiii ~LiliF5ily acr" tion for repair of Diesel IC - 72 hour action state ~ent for operabili t.y 0; Diesel IC uay be extended to a tjeriod of 9 days provided Diesel IC 1s returned to 0?iRIME status as soon as r..aintenance is completed. The provisions of specificelica 3.0.4 are not app'icable for this one timc change. "One tim only except ion during repair of Diesel 1C - the 8 hour interval test is ext ent' ed to 72 hours. FARLEY-UNIT 2 3/4 D-3
SAFETY EVALUATION FOR CllAtGE TO THE A.C. SOURCES - OPERATION TECHNICAL SPECIFICATION I. BACKGROU!!D On July 30,1981 at 12:50 a.m. while performing surveillance t'sts or. diesel generator 1C it was datermined that the jacket cooling water had been intro-duced into four cylinders. At this tjme, diesel generator 1C was declared inoperable and the 72 hour ACT]ON statement was invoked. After exceeding the 72 hour ACTION statement, both Uaits 1 and 2 must be placed in liOT STANDDY. Investigations revealed that an excess of 72 hours will be required to return diesel generator 1C to OPERA 3LE status. II. REFEREfiCE Technical Specification 3.3.1.1.b for Units 1 and 2. III. 1:ASES A. Intropction The onsite crergency ac po,!cr supply for Units 1 end 2 consists of five L diesel generators which supply standby po. cr for /,160V crargency service buses f, G, P. J. II, and L of each unit. These buses provide power to the emergency loads. The emergen:, loads are divided between the energency buses of each unit in twa balarn ci, redundant lo :d groups so that the failure of a redur. dant group does rit prevent the safe shutdown of both reactors. The /,160V c. urgency buses F,11 and K of each unit and their assccia ted loads are a9;ned as the redundant load group Train A. lhe 4160V crergency buses G, J and L of each u; and thcir associated u loads are d. 9nated as the redundant load group Train B. Diesel generators 1-2A and 1C are assigned to the redundant. load grcsp Train A, while diesel generators IB, 2B and 2C are assignal to the red"ndant load group Trein B. Diesel generator 1B is uniquely assigned to Unit 1, while diesel genarator 3 2B is unio.uely assigned to Unit 2. Diesel generators 1-?A,1C and 2C are shared between the two units. See attached ! SAR Fig. 8-3.3. The capecity of the diesel generators ensures that sufficicnt power uill be availaole to provide for the functioning of rectired emergency loads during the worst loading situations. _ _ - _ _ _ - _ - _ _
P B. r. C_US.SL.. _J._F_lWPAC..T O.F. LO_S._$..O. F. DI. ESEL._GE.H..E.. RAT.OP 20 Table 1 delinr:ates 1.lu resuli.:nt loss of ey:i :ent n'th 1:.C 1C out cf service for the 1ollouilig case,: I rms of of fsi LE poaer - Units 'I and 2 1. 2. l.oss o. ofisite ps.ler - Vail 1 i 3. l.oss of offsite,mter - Unit 2 e 4. l oss of of f tii- : eer-Units 1 and 2 concurrent.-iih a loss of coolant acciJ: - Unit 1 4. 5. l.oss of offsi te p".!er - Units 1 and 2 concurrent with a ' loss of coolant acci0n' - Unit 2 6. l.oss of off site p:tter and a loss of coolant acci:' ant - Unit 1. Holyul shutdown on linit Z. 7. I oss of offsite power aiid a loss of coolayL acci:'eut - Unit 2. Normal shulda.;n en Unit 1. The loss of diesel goerator 1C iw. no impact on eithar. unit for case 2, 3, 6 or 7 due to the fact that D.G.1-2A lods the essential husca a: ? D.G. E d u s not pick up any e,: trgency buns. lhe loss of D.C. 3G for case 1 results in a loss of Train A loaa for Unit 2. The loss of D.G.1C ;;r cases,4 or 5 re:.ults in a lets of Train A leads for Units 2 de i rc;pri.ively. Ior the cases. ' e there is a loss of coolant accinnt for either unit, D.G.1-2h alip - ; elf to the uni t which is undergt :ng a LCCA. Figure 1 prc '- 1 Oscription of the Farley emerg=y electrical distribution ic-. In additica e - 1. . stated above for acceptabilit; of the exten:Scn of the out g it t.ncl generator IC, the forlu,iing should be noted. The probabilir ~ 62 loss of offsite power during this period is r.at significantl; i. c :e.ed. In a*M i !.ioa, c A a:_. * ' load tests have li'en recently completed on the dicsul 9 a w a.rs pro'/iding emergency power to Unit 2. Based on the c.perating power history of the FNP 2 core, up through July 31,1981 and > luding eight additional full power days of operation, Westinghouse hns determined that the best estimate decay heat. source is less than the i;ppendix K curve as follows: 1. At one second - FMP 2 core is approximately 821' /.ppendix K. 2. At 400 seconds - FHP 2 core is approximately 76% Appendix K. 3. At 4,000 seconds - FNP 2 core is approximately 70 ; Appendix K. 2
At increasing greatcr times, the FHp 2 core will continue to diverge from the Appendix K values. Therefore the decay heat source in the FHP 2 core, during the Technical Specification extension pcriod, will be less than that assumed in the FSAR accid >nt analysis. y In additicn, Aldam porter Company proposes to deronstrate the operability of the remainir.g A.C. sources by perfonning surveillance requirements of section 4.8.1.1.2.a.4 within one hour and at least once per 72 hours rather than uithin one hour and at least once per 8 hours thereaf ter. Due to ex-pected time required to repair diesel generator 1C, approxinately 75 starts on the remaining diesels would be required by Specification 4.8.1.1.2.a.4. lhe diesel snufacturer daes not reco:rn ad the testin? frequency required during the period required to repair diesel generator 1C due to potential accelerated ucar. In addition, all transmission linc. fe" ding the Farley Nuclear Plant switchyard are currently operable with no interruptica scheduled during this repair. During the tine period of this Technical Specification, the freque=y of testing of the four remaining diesels will be modified to be periorred on a' staggered trasis. To implement the stagered testing, plant procdures will be raJificd to ensure thot operators are aware of such conditions while di-21 1C is l?ing repaired. Shos and Shift Technical Advisces will be briefeu of scch conditions. As a result e imlementation of recent Diesel Generator Task Forcc re-comende Lion:, f.e frequency ef failures of the small diesels (lC ar.d 2Cl have decream fre.n 6 of 100 starts to 4 of 100 starts and feilures of ' the large da O s (1 -2A, lu, and 2B) have decreased froa 5 of 103 starts to 2 of 10.
- s since Iby 10, 1981.
The inprcve, :t. in tne failure rate of the large diesels, per R.G.l.103, al l ec. Ap. ; 1 : te~. the d! ?sels every fourteen days vice 3 days, which was required ni ci May 10, 1931. Similarly for the sr all diesels, tne ir:prm.c. en t m t'.- failure rate vill allow Alabona Po..ar to test the sdl diesels vvy seven days as soon as the failure rate reaches 3 out of 100 s;.a ct : b ed on this data the reliability of the diesels has been significati. enhanced since iby 10, 1981. 2 Cased on a risk assessment perronted by the !;RC on July 8,1931, the probability of core meltdown during a similar technical specificatica extention wculd be approximately 3 x 10-5 Based cn the shorter ex-tensi; pcried and the improved diesel reliability, such probability would be nipificantly lessened. 3- )
IV. .C_OI!CLtlSI0il The proposed change to Technical Specification 3.8.1.1.b does not involve i an unrevicued safety question as defined by 10 CTR 50.59. This one time Technical Specification change however will not significantly aff ect the safe operetic, of the Farley t!uclear Plant Units 1 and 2. i i r I r i I b b i 1 l 4 i i -A-1 I r
f e .g s .g z ac-C C
- 3
- )
- I
'T () O O O ._J I 'O
- U O
O O O O O O C) 5. 1. 43 P .b 5 u-r. M M M M M 3 (f (T 8: C LT tr r) U u O) O O 5. r-as-L b c-- r-- 43 43 5j s'j 43 43 O 13 O O C G C C CC N l~ U U t a O O O.! e--s e-4 r-f s-4 ,-t r-t II C i 7: ?! M I O G O G O O. OO O I =
- a _C U
I O O C3 O O O 4J -iJ
- 3
.C M O O O OC .C O 4 2 u-- ff L 4) et tn O O LO N C O. C O L2 I C =ca X -P l-~ (O ; "
- 5. O e--
C, 3
- s S-l--- CO l--
. O tai e -4 =# Q N (9 la 10
- r-
- U 43 to fM t t Ia1 CC C C 113..J IE O O
(% (q UJ O ;J ar-
- c-L-
1J :0 4J 43 +2 C:C l-- O r1
- s-V
- O C.C
%) O O M 4J 5: 4* L t&- O C* =r - C U
- r-M O CJ c
tn LT 4>.C J) h: O O
- m e
l-r( b
- O O
I? ;r O C)
- O C
O iG J -l J L48 L . I L. (n 'tn O = s e-D to (L O. Is3 t ti CL C) O. t ) L'8 111 C N e-t ;s C O s 13 to s a LO M to C to
- C r
U* M O C. ( O 'J O O O OO OO O O s O 42 42 O
- 4) O I L.7
_f
- c 1.
JI JJ Z M L
- r
- 5 43 5-1- rJ Ed ec5 CC C O e - '.- ) D e -4 72 D d a ;* 4*
- O *U O 0
D. 4- % r3 r-D. mL U OOOO OO M e-~ UO (A a 5 ts. It? Id it) til (L CC r3 43 rz O ;ir M M
- r
- r - ht c t-5 e-*
4 O (> O O rf r3 OC v) i OO to,K (q n (.2 .- 4 Z M O
- i. LJ 1: 0 th C
er) t.: 4J G 4J p ~ ". ' '. .% O O 1 -- r.5 l-On O I-G _J
- s:
O e-- r--
- 5. rJ r3 D. r.1 c r3 o
!.i * ~ 1. O O. ~ % 4J !? O O O,- s- '..t O
- r-04 u 4J bL U') O at
=e - =r 4 3 4 3 O O 4-
- ~
Z t.) L to O O.C O O O, ON O 1-O O 4) O 4
- -8 O.
O. O. O...) O. et* O. r{ Of 4) 4 - e - s-- O M l-l~ U) th (S ( Ji U) U U)( ) fo u OOO OO tr > H+-* O O O OO OO OO OO C L 5- 0 ( -) P. 1 .J .J _J M ._ J._ f lI _J.J
- 3 4-
- : rd C. r--
VD O rK <K O O OO O : 8 O Z Z P". CJ t/) .C t/) I I to 43 O O ._J a. C << cC C N e-t O ~~ I _J ~ C ZZ O. .:C O.rt O CL >- + + - 4 CL O r-1 to O l U) t ) (A d. r' to >-s O O OO et O t \\*. (? O I -- l-O. O_ .) O. ct* O. _t O. r.C .>._1 O .J }-* l .J s *- < U) to U) O to (o u O O 2. O O O OO OO OO OO _J MD .J J Z ._J.J JM J.J. ZZ () O j y to 4> .s. O >-4 l~ Z tit Ett t e (A = }- (t r-t el (<> t.O (O N O tti U M Q
r LCs0 Di. SCRIP ~lIOil 1:Usts 1F ]K lG JL 2. PK 23 Pi -A. 1.0SP LOADS Clerging PMP X X X y, CCU PMP X X X X AFU PiiP - X .X X X ~ CI!DM CLNG FAN X X X X CTMT Cl R Fall X X .X' X 1:ATT Cill!Gl! X X 'X X SERVICE NfR PMP e X X X X B. 1.0CA 1.0 ADS 111151 l'MP X X X X I!!!R PMP X X X y CCH PHP Xi X X Y ~ AFU PMP X X 'X .X CTMT SPRAY PMP X X X y; s Y !!EAC CAV !!2 UIL EAN X X X X ClMf.Cl.R FM X X "X 'X IIATT Cl!RCR X X X X SEltVICE UIII PMP X X X
- X I
4"V liUS lil 4KV IlUS IJ GV IT.!3 2ii - KV BUS 2J ~ C. I:1VER UATEit SYST.;M ~-" ^a)
- 1. l!1VER UIR PP.P TOTAL X
b) 2 RIVER Win PMP TOTAL c) 3 RIVEP. WTR PM? TOTAL X' X~ 4 e 4 I
/ s.i. i Y 'M;. la,' U~)JJ UJJJ ,?k.J,., 1 ;,K LCL IR y ~< y) lJ-(lY v.y) {(l)rvy) n, {(l lfy,p l 1l- .l- .J.- 1 w e _ _.. _... _ _ _ _ _.. _ l _..._.. /.., p,7,g 7,'
- i.._.
.a. ggg I / \\ Gif lit /,\\ l 2\\ /\\ Ci',7 13 / \\. / \\ /\\ /N iu j I >: 0 .I i I ' \\ / g/ g \\gf / / -D. N/ g / !?15M ti t r, IG l ts I:. I.T lk t, s.^;.. ~e ~ < G-. ' n :,--. a w y <-.--- ; - ~ ~ ' > e W,~. l.-- , em.qm ro.f:~. n, 'l I /\\ /,N /\\ /\\ l \\ /\\ \\ /\\ /\\ \\ s I. 1 l /i\\ /j\\ i 1\\ \\ 1 1 J, i 4 4) 4 \\- s I I J 4) i o, v v o v v v I 1 l j l 1 l I l l l l L_. I i l l 'l l i I -)~ -Q ~.A I A Z^ l g -/ DL i. '05 l ' /, l-(G 13 [ g L1 }JIT i l i i 1 e e e
- "**'q+ma
,.%-.._.c_.%_%...,._..m%.. - - + -. - - - - - - - ' - - ~ * -- - Y 'M a, sh -,, ,g g - TV e; g 4, 2
f L.'.%)J Y Ua. Af~ I 52.Vu t? L A>JJ jU.A1.1 S W.IP ~ i.~ws O A (YY) (y y 1 l l k(lpy ) l( y y) 'i:'./&' < U ~- .l} f . I- .I. .l. t y y'{,* t_\\f j. 1 ( J,. - ~ ^ - '. ~ ~. . - - ~ ~ - ~ ~ - + - ~ ~ - ' J,,f Ql[L 1 Q f .. - ~ _... -. -.... x cyn 1.\\ /3 i s s OW TD s e i s. x I s lla, - l 1:.o. l, l ix 1. Iskl . s-1 s? / v-s- f y, ;.g,j _D1 ' 7W SE t 7ii ....._-_-.l. _T,L C.T 1 0as i .e / s /s l i ^ A s p /s l 1' i 1'>0-1'T 'ts r i v.I-g!, lI fe d . de d- [ 2 1 s v e e sg .v l L.. [ t i l l l. I i I l l 1 ~ l l - l I I I i 1 l "Z. l. l -s -_...____ _.._... _.._..__. _.- ___ _l 02'la ' i . es 'in j I I U w rr z l a ALABAN 1Oi!ER CDPMi? JOSEll! !!. FARLEY l:JCLEA!: PLA!!T i Fl.NAL SAFETY AN'1 LYSIS i:EPORT Scilmlil!U AHl!A!;mNT I!!ESEL GUEi ATORS AAll 4160-V E!!EEi'E'iCI EUSES. U 1 i E,ii 8. 3-3 4't ep*.d .-I ,,}}