ML20065S058
| ML20065S058 | |
| Person / Time | |
|---|---|
| Site: | Limerick  |
| Issue date: | 11/30/1990 |
| From: | Meck K PECO ENERGY CO., (FORMERLY PHILADELPHIA ELECTRIC |
| To: | |
| Shared Package | |
| ML20065S044 | List: |
| References | |
| NUDOCS 9012200045 | |
| Download: ML20065S058 (10) | |
Text
?
. 3907088730 Docket No. #50 352 Attachment to Monthly Operating Report for November 1990 LIMERICK GENERATING STATION UNIT 1 NOVEMBER 1 THROUGH NOVEMBER 30,1990
- 1. NARRATIVE
SUMMARY
OF OPERATING EXPERIENCES Limerick Unit 1 bwmn tha rnanth of November in OPCON 5* with fuel reloading in progress.
Rofuoling was complotod on November 2. Unit 1 enteroJ OPCON 4 on November 11, following the 1 completion of reactor vossol head bolt tensioning. Limerick Unit 1 onded the month of Novomber in OPCON 4 with preparations underway for reactor start up.
Note: OPCON 5* equates to fuel movemont.
Operational events that occurred during the month of November included:
- On November 10, during Instrument valving following mstrument line backfilling, an inadvertent division I LOCA signal wLs generated. All systems responded as designed.
The '1 A' Coro Spray pump started and injected to the vossol for approximately one ml..Jto. -
resulting in a lovel incresso of 8", and the D11 diesel generator started and ran un'oaded :
for 5 renutos prior to being secured. In addition, Shutdown Cooling was out of service for approximately 15 minutos due to load shedding of the '1 A' r,HR Sorvice Water pump. Tharo was no appreciablo vessel temperature increase during this period. The cause of this event ,
was determined to be an error in the valving soquence as prescribed by the Uncoc gro. A four hour notification was made due to an ESF actuation. -
- On November 18, a ? ?S actuation occurrod due to a high reactor vessel pressure signal ;
during hydrostatic testing due to a personnel error related to reactor vessel pressuro control. 1 Thoro was no adverso effect on the coolant pressure boundary as a result of this event and vessel temperature and pressure were maintained within Technical Specification limits. A four hour riotification was mado pursuant to 10CFR 50.72.
- On November 20, the Unit 1 Reactor Prc9ction System (RPS) Initiated a full reactor SCRAM signa! due to the Intermodlato Range Monitors (IRMs) going upscale. The SCRAM occurred when the '1F' 1RM spiked upscalo causing a Channel 'B' halt SCRAM. At the time of the l 'B' half SCRAM, a channel 'A' half SCRAM was present due to ISC surveillance testing of l tho '1C' IRM. An NRC four hour notification was mado to report the ESF actuation.
- On November 28, a 4 hour4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br /> notification was made to the NRC when a manual Chlorine isolation was initiated por procedure when the 'B' Toxic Gas Analyzer triggerod a 'High Toxic Gas Concentration' alarm. The analyzer was proven to b' Inoperable and the Chlorine Isolation Signal was roset.
II. CHALLENGES TO THE MAIN STEAM SAFETY REllEF VALVES Thoro were no challenges to tit Main Steam Safety Relief Valves during the month of November.
9012200045 901212 2 PDR ADOCK 0500
.. a . . , -.w. ., ,u . .- . . , - . a~._. . . . - u-+ .n..~~. . . .
'g k
[.7 = , - :.-
); e f -e
[ .1
-t O
.- m
./ .
.<D.
03 O
N O
Os N")
J l 1> O kJ l2 i N >
14 4 2 M W
'i n6 O'Mi .4 2e -H O4 H 2 a VI et O uJ t 5 > H $
I 1. Ui t/t M O^
t we l 2 AF e'i E l 0 W' kJ -O O "3 O O O O O O O O O O O 8 H t W 3 > >E et i Ut O M M i .J 4 M -l o : us i e .b- ul M un
, 2i Ch J l- M 4- et D
! 3I m us i > - fr O OEw l e- . # 2 H us o I et I hk M 2 N ul l
- e-e 4 Q y ul - e : O
@' T6 ' 330 i e i
6 :. n' W b 2 N Y Kl J U MW N ut m u: to 6 u1 uJ M M U M >
J, F) M G1 4O 3 H nu M et na K 1 i et i EZE- e
> 1 us us tMJ$EhM3 e J O M ha m e '
kJ - -
1 OI M m a) (h O
.J Q. H I uJ lI t et ni > re N- > b @ mO e N et u) - 6 N
M) JlQt (L I K E G3 J w I 4 e e *- N N N N N N N N 'N .1 E Q 6J e H uk .> us O *e > E' 2 1 - Z W 4 -
. - 3 Q- a b N k kJ - O. ul M W 'U' .4 uk
'J
'Z U to D C, F >'
uh
~O g
.3.
, -- J we . ec d -- us
'.O E
- Oe
~ IA0 Ob d u) O O Q Q O 'O O O - 0 0- 0 O O O O O e4 - . Ot >Z K m6 J6 -
ua mi M us
> e t et E et . 6 ' Oh-w R t
- W $ ' uJ CD 4 0 31 *(
uJ l .E
>f ul -
D$ >-
Z4 4-t 1 m er e o y
.g
- N e g m e o are m o e e
e.
N e ** e- e v-
.- O
. ~ - - - . .- . _. .
e t
e O
eq N
CO ~
CO O g N 0 o , I > 0 OI 6____________1"" i ut @ l Ol O I4 i O I r; I O I y I N
@ t I
t Z 4 l 4 i FM i N i e a i ul 1 >
- 1 M t - I *4
- 6
- I I") I di l O I@ l O
. 60 1 M i
- I @ l
- I u
O
% 1 t
6 ta 1 i 3 0 19 i M i i
e ul I *w IQ F
4
= 1 M i N i @ t e4 I iO4 I *i
- I - 4 i St i N I O *
- 0 1O F7 5 5 J 9 i *I I *I 4 M i 4 1 01 I 1 eU 40 I w 1 i t ps aF I e *) 1 (1 1 IN I i e- I t- 6M i n. '
I I U MM i 4 7 4e 3 1 (9 I i (9 I I *1
- 1 *I d l n 3 1 1 I I I Its 1 Q t $1 4 i I M Y ' I kJ I meM aN l a e I a c ui iO O I I I I I a l i e I e i F G S *= E i
1 I
4 I I i
I i U '
O O i ua 6 l 4 IO uJ i M HuH W} L Qu i G) J l H et i t m I kJ l > EO 1 kJ l F l e- 1 I & b uk O I O IM i I4 I ul H Z N I4 4 4 un @ 4 N I O I G) iOI G) 4 O I 0) 1 I e i M i n Z ul ** t >- 1 J >- *- 1 *8 + I
- l
- 4 *4 e i l & EM b 4 i O ui l M i I Ot in 6 M i N N J U min i I U 1 (J lM1 M us ul ulM M U(9 ! 1 J Z O I
- i I *I I b l to a M I O 1 >- uJ H M M i Mi i @ l I (4 I to I (9 4 (9 in i i us i I I t *i
- 1 *I 3 4 K Z tr a 1 1 3 I M I I l I i I l 0- 1 M i in i i uJ l' J l J O M ut it) I I k
- tr
> l 1
i U l H l & a M 3 e- 1 i us a en 1 1 5 4 *- t i
1 t
n O Ib I I I I I i O . W i T I 4 ui 3 H N 4 I i
- I I i i i M I OI a i i G (D .J w I N I 4 O n i 1
- W > W tr uJ ld O H in 7 I to a 4 3 Z *t (J l iO I O O J I o in t- OIO I OI OlOl O I OI M i a i M iI Z N 1 +1
- 1 *I i i b I F ul O bI 1
i OI O4Oi l I e- I W >- ua i ul ib W uJ .J t H I 1 ( l i i ( 4 6 *I kJ l O IM i i I 6 4 I t th I U J M i i l I t i 4 e i O a >- t Z l M i i i I b I O 3 I I E i 1 O la~~~~~-~~~~~~~ 4 ui ^ I 4 6 1 1 I I I i (J G1 kl >- 1 e i l 1 1 1 1 3 5 i l i l i I i i 3 3 i i I 4 I I I H i I I I e t t i M I El I in i N I to I Z l 6 4 1 I i GI M i 60 4@ l to i F t i N I e- t O1 OI O IM las ul i i M i e- I e- I e- I e- t 3 Z n i l i t 1 1 us w I I I l 4 5 >-
t 1 1m H > ^
4 4 1 I
H I i 4 I I kl = Z I l 3 m et 4 +
4 4 1 8 W T Q l i I I 5 ul M J ^
I 3 l i e i B O u at w 0 t I l Ie M & 2 H U 31 h Z lO t i I ul M ** ~ H D O w H Im6 4 1 E O F >- - > D- w ul
>= l @ l e i 3 tt ut et O 7 H t- O 4 *- I e i I O Z g kJ at LY M G 4 W H I i H w w P U E W G H HJ Hl *1
- m W > U w 3 H uJ 4 Ek u aea uk Z > > F ** *- M Q M 4 2 a O 7 ui I >- E w t- >- ** tr er I a tr us un D G) 1 3 h H H U F
- O 3 3 kJ d Z t
2i& d U U at M M C 2 O Z ul i ua I w M Z 4 et a us 7 *. tr E ui 1 W > 0 0 >t & M M a ta at g C .c Q Q Z c Q lOI ul O H 4 4 U M lu e Q M 7 KK >
l Zl E R 4 U U T H L. O e J R > ui O
- I I O O .y y u U n 3 I O O Z m Ui a w uJ ul M n H d us T Z Q tr uJ W H I .J J _J T tr Z Ca M O F ui 2 min l O" J 43 4 g) O tr 3 F e 3 'I .6 kJ 3 t ut i O at Z U at at 3 m >- M us n I na 4 b i &4H 3 M >+ 0 0 0 O ir Er > O M U .J 4 5H I tr Er b & 2 Z U >- E O 3 u F J H 4
>- I .J t uJ uf 4 P- W uJ O a O i+J 4 u8 at a U Mi a 1 tr U a a .J a us 1 M a > m >- n i o >= ul us us M ul O tr ut un tr ir u tr d i all O 4 .I O O ut > IL u. tr Z W ut ut b Z l & 2 O kJ O ui 4 O us M I J u H I at M us ( 2 & Z .J M H (f Q uJ >- uJ ut b i 7 >- M J Z D et Z n o tr .J 4 6 & Z n 3 "I) 1 & O M ul F M M M uJ n1b O ks un O, e- w we U w M tr in U a t- M M ul I >* a U 2 M X X ) 4 3 h at 3 ** O O F-nf 7 ua ** *t us at 4 IL O ut C' 3 W O 7 tr tr us OI D a .J Z O 3 2 e u a 1 Z a 1 3 c d Z
- = N M 4 in O b cp & O e- f4 M 4. 10 O b a) e- e e- e e -
e- e- -
OPERA'TIkG DOTa REPORT (CONTINUED) DOCC1ET NO. 50 - 354 3907088730 *
.- u DATE DECEMBER 5 '1990 THIS WONTH YR-TO-DATE LUvutATIVE
- 19. UNIT SERVICE FACTOR C.0 67.0. 70.7
- 20. UNIT AVAILABILITY. FACTOR Q.0 67.0 75.7 21 UNIT CAPACITY FACTOR (USING #DC NET) 0.0-63.1
---.8 65 +
- 22. LNIT CAPACITY FACTOR (USIhG DER NET)- 0.0 63.1 65.8
- 23. uMIT FORCED OUTAGE RATE C.0 3.6 3.0 24 58.,TDOWNS SCwEDULED OVER NEXT 6 woNTHS (TYPE. DATE. AND DURATION 08 EACH):
REFUELING OUTAGE: SEPTEwsER 07.*990: Day e4
- 25. IF SHUTDOWN AT END OF-REPORT PERIOD. ESTIwAT'ED DATE O* STARTup: 12/08/90
- 26. UNITS IN TEST. STATUS (PRIOR TO CCWWERCIAL OPERATIOM): FORECAST ACHISVED INITI AL: CRITICALITV 12/19184 12/22/04 INITIAL ELECTRICITV MID APRIL 85 4/13/85 COuwERCIAL OPERATION iST OTR 86 2/01/86 3
-t i
i i
PAGE 2 OF 2
- - NEGATIVE VALUE REPORTED FOR CONSISTENCY WITH FEDERAL ENERGY REGULATORY COvw1SSION REPORTS. i i
l
ifli ;lll(;
0 -
3 - ..
. Y - 0-2 - .
- . N -
7 -
. A
. P -
N3 - .
C3 - .
8 -
W-O I
TN- .
E R E 8 -
C AO- -
TI - -
I T
S NAS E
E 0 -
C I
SS- -
N - -
N E
OTN I AE C
R 7 R . - - TDC U 1
T R GE.
NT - - R C I ) O S
0 T I _0
_C -
E -
O S
I X - .
TE - -
O F
UFL)
RO R6 1
RE1 E 9 N U 9E L -
I V
A R0-
- E T
SNOL0 M A
3 -
1 -
- A -
RTE 0-EIN2 -
G A
NOF( -
II G S
- .. PNE1 . - T TSTE 5I- HP- _ KSUUG- -7 .- .E V U
O )
- ATRR REOU )
2 M - R - LC SK2 - . I E- 4 GAEPN 5 I 5 C. E - T ESSC3- . T C. G ( PHE( (
3 S- - . C N - N TESR T I
R E .E w- F.uTEI A
L- LOIE5- . R RNR) - . E E R _
I L
IR BPYTL E I B
MC I - RPSw1 - . R R - C I RNI I 0 E H AEJI2- - OOU_ U HRTEF d 5
I LD P KRBL( - - CTC- F xONV x
- E- E EFEE E
. E E V E - DNR - R O M 7 B N - NO N A - O - AIT N .
N " D H - TN ID T E P . ECE O .
E T T E - SAV TI K I E L - U IR M)
C N L E - A E R __ NE AN O U P T - C P - UP .RI D W WCA O -
- li1 1li1i ASL C - T R P
- N CCX
- EE) _
Z ) SIE
- Z 3 T(
- ND5_
OO( Z ( LLA AAUR
- PC - Z
.w Z UUOE
- o Z NNTH
- C UAAUT
- . OMMAO
- M _iljlj H
- EE) - T - - - -
- TD4_ Z E S - SO( - Z W1 234 N - YC -
O - S I 0- - llI IliI1 T 9 - - N C 9 - O U 1 - E *- I T
D ,. - E E . -
STT A R R - NNR A N I
E - _ EEO_ /
R B - CVP - N M E M- _IEE- A W E- _L R - X O V- - E P O- -
) E )
N- - : Iill1 D - - N N S N N . w) ._ -
I N E
I A
A H - FO3 _ A T - OD( - L C L 5 N - _ P NI P 4 O - DGR _ k OL x h W ONO_ 2 E ! E O - HIT - (T i+ (
D S C T
U T
R O
.TTC-
- WUE -
ETA - EE RT IG RN R
O H P - HR U TI R S E - S LR SNER)
R -) i f1iI1 IO EIVEN T - N A RAI I I O) . FE RTLA N S2_ C C YTAAL U A( - ) TNGR RNP
- E - 2 NANORTOX
- R _ ( ENITOSIC
-lAl . iiif UELATIT(
- N) - PTELA NAR
- INUURIRE
- O S __
IR 0
- UIFGEMEH
- TU- - . NQAEEPDPT
- AO- 0 - 0 OELRROAOO RH 2 - 2 S O( 7 - 7 A - - - - - -
D _ E lj! . ilill RAeCDEFGH
- E) .
- P1 . 5
- Y( .
- T _
-lli . iliIl D
- . E
- . 1 L
- E . 0 DU
- T . 1 ED
- A - 1 ) CE
. D- 0 1 RH
. - 9 ( OC
- - FS
-ll) - }liIl
- O- 5
- N- 3 FS 1l ll lI ! lil
--_ _ _ . . _ .. _ . - . _ _ . _ . _ __ -...~-_-.
.l 3907088730 L. 1
- 4. .
p Docket No. #50-353 I Attachment to Monthly l Operating Report for-.
November 1990 l
LIMERICK GENERATING STATION UNIT 2 NOVEMBER 1 THROUGH NOVEMBER 30,1990 1
i '. 1. NARRATlyfjuMMARY OF OPERATING EXPERIENCES p Limerick Unit 2 began the month at a nominal 100% of rated thormal power. On November 2, rear: tor power was reduced to 86% to perform a Control Rod pattern adjustment, a Main Turbine -
Control Valve test and a Reactor Protection System test. On November 4, reactor power was reduced to 98% to perform a Control Rod exercise test. On November 14, the turbine generator was taken off line with reactor power reduced to 18% and steam flow bypassed to the condenser, following the discovery of an EHC leak at the #4 Main Turbine Control Valve.- On Novembe' 16,
! reactor power was increased and the generator synchronized to the grid at 2130 hours0.0247 days <br />0.592 hours <br />0.00352 weeks <br />8.10465e-4 months <br />. On November 18, Unit 2 achlt.ved 100% power and reduced reactor power to 85% to perform a Control Rod pattem adjustment. Reactor power was again reduced to approximately 92% later in the day on November 18 and a Control Rod pattern adjustment made to improve thermal limits. On Novembir 28, reactor power was again reduced to 85% to perform a Consrol Rod pattem-l
' adjustment. Limerick Unit 2 ended the month at 100% of rated thermal power.
II. CHAli FNGES TO MAIN STEAM SAFETY RELIEF VALVES There were no challenges to the Main Steam Safety Rellef Valves during the month of October.
l-L l
i~ s I
l i
5
' - ~ ' r -n -e mm s,- ,.e w - - _
!;' l , -
e n' e i +t O
F es N N mim OI ut' >- tD Gi 6'b " I N
i O- C h !. ~ O.' m. n. (n .,i o,n i i
t.$
N U. i i i
> % 4% 'i % e ha N? e 8) t n
b o.
.I; M r
e i O s es OI si
@ m
- U<
4.
@ j@
Q O'
- = 1
. Q l.
w- O.n W. e\w . s e. , U n
x Q m
, F. e i, ..
m th 6
0-b:{ O -
4 - N-- N at '@ Os
.f% Q CD E b *a i ul ' CD a) 6 On 8 E l H % % fN 1 O =>
m o u-O M N a( **
- i - i Q l 1
>=
- 1. .6 U % . A 'e ul E- -4 # W W @. .
N O W
> t 4' u IM O
-4
- E O
O O 6 C, i I 6 Q- I t i b M u- 4 0 4 F 4 i W G E A- F Q 4
- 0. 4 1 O W
'uJ - 0 F e i
- e. i o. o. eg to. ni c m
n' ge 1 2 o- m M ** -te12 u.
s.we 3 @ ,@ m m M o a e.
- k. i
-3 M + W- Z O s na F O
. 4.# 1 I e 4 we -
=
w.- k. I 1 et O H i i o 4
.F t i i O K
, - 1 L + ut ha'
'B ' ut >- 4 a .t : 0-
> M W- Fe . w .J (t w>- >- 4 Cf ' d M H
. C= MQ un u 4 I - . tr . 2-
.O a a >- 0 > > . 0 F F- 26 'o+ W- FH p- - **
LS - ul W O O H F
% 2' 3 *= H .1 U 4 w >2 -- tr O. g -- u a
>* O 4 @@ kl - U K h4 et O ki m 4 O es e n-2' h O. Ee >= F U- O at
>. H uJ
'. 1, d-' f) uf
- a fr & J . .I O 7 ' "., . ZN O.0-M u w u.
H s N A +e
-W -M 1 a . ui &- .J J u O 3 ., W u1 I g- 4' at 4 a
>= w w H' >U w w M hl
- at - Og- LL >= b- g.- -
U4 - E a K
- O M .M M fr - E. ' O : C' 03 3 z 2 O O F F us. ua e. o >- M w U-e > U .O d J 2- (
O >+ at . 4 : 4 Q u1 uh - H st M 46 LL -F. OO M
. u. .3 D - 44 et >=
n .> > O' I, >~ <t F u) in F & U3- M u 4 M M Q MO E W
- .* O U W 3 F
> M 4 4 O MO O G . et h a Cr 7E 'O lT W- > et - et 3 >+ ' F- -
M 4' O u.Oi:: k O J QW D
I W F M >- F= F Fa M 'e
- *
- w w H~=M .Du de 2 . 7 I. Y Z I uI lb 2 3'3 3- 3 3 MK H P.
O O Y N N Y~ M Y
- - N N N N N N N 1
1 --
?' t e j i i
^ '
- - Y 0-
- - N 2- L N 0 - - A
- P w3 -
O3- N O
F A
3 -M
.O I
TN.
- I A A
T N
R I E 7 .C AO-TI -
MD N
O C
NA Ir A A A S NAS E
E 8 - C SS- AE M M . M OTN C MAT . MR I N - R MR RT RT DT I AE R 8 2 - R GE- OGN ON ON ON TDC U T R NT FNE O EO FE FE FE C I ) O ,
O S
R HT T ET ET ET UFL)1 RO R6 7 Tn0 I
N U-9- L 9 L I
V A
R0 PSS EU E
P DE
? PS U
PS U
PS U
T SNOL0 RE1 E M
0 1 RTE 0- OTJ NP OJ OJ OJ NOF( - A A EIN2 - T C O AP TD TD TD II G S EA T A A A TSTE 9 5
. I H
PNE1 -
UUG- - E %V %R I
% % % - ATRR -
P KS V 5LN 2T 5N 0N 5N ) REOU )
3 3 d R L C SK2 -
7 -
I E 1 AR Z . 8 1 R 1 R 1 R 4 GAEPN 5 I 5 C E E ESSC3- T C VE T R E E E ( PHE( (
3 I B D MTEI C N D T DS DO . DT DT DT TESR T R M A RNR) E E ELT EE ETK ET ET ET IR E I E E L LOIE5 R R COA CT CAA CA CA CA BPYTL B RPSM1 R URP U URE UP UP UP RNI M C I R I I 0 I E H AEUI2- OOU DT DE DEL D D D HRTEF H 5 L D P KRBL( - CTC END ES EN ED ED ED XONV X E ROO RI REG RO RO RO EFEE E
. E E Y E DNR CR C GN R R R OM T B N NO S SR S I S S S N A A O AIT L AE AEP AL AL AL N D D H TN A W "N O WX WNI WO WO WO T E P ECE IR E IP R R R
_ E T T E SAV DBT D DB DT DT DT .
C I E L U E ARN AD ARC AN AN AN M)
C N L E A R OUO OO OUH OO OO OO AN O U P T C P LTC LR LTE LC LC LC .RI D M , MCA O lIl l i1liifl .!I1 ASL C T P P N CCX EE) Z Z X Z Z Z ) SIE ND5 Z Z .X Z Z Z 3 T(
OO( Z Z E Z Z Z ( LLA PC Z Z P Z Z Z AAMR Z Z I Z Z Z UUOE O'
C Z Z P Z Z Z NNTH DAAUT Ili l' ill! 1} l OMMAO M H EE) T- - - -
TD4 Z Z A Z Z Z E S SC( Z Z H Z Z Z N1 234 N VC J S I 0 ll1 IllIIli! Ii V 9 N C 9 O U 1 E
- I D T A
E . STT R R NNR .A A A A A A .N E EEO / ~ / / / / / I R B CVP N N N N N N M E M IEE A W E L .R M O V E P O '
N ; l[' .IlIl1lIl ' i1i ) E )
D N S N N .NW) I N I A H FO3 A E A T OD( L C L S N P NI P M O DGR X OL X w M ONO . 4 4 4 4 4 4 E I E O HIT ~ (T S
T
- C
(
D T TTC V R ETA EE IG R U O MUE RT RN O H P HR U TI R S E S LR SNER)
R I IllIl :I IO EIVEN T N A RAI I I O) F 'E RTLA N S2 B F A F F F C YTAAL U A( ) TNGR RNP E 2 NANORTOX R ( ENITOSIE lll Ii!1IliIlI' MELATIT(
N) PTELANAR OS I NUURIRE
.IR ' 0 0 7' 0 0 0 - 7 UIFGEMEH TU - NQAEEPDPT AO 0 0 6 0 0 0' - 6 OEMRROAOO RH 0 0 4 0 0 0 - 4 S U( 0 0 -0 0 0 0 -
E A - - - - - - - -
D IIii' il RABCDEFGH
'E ')
P1 S S F S S S Y(
T i(i Iii .llI iiIIi D E
2 4 4 8 8 8 L E c 0 1 1 1 2 DU T 1 1 1 1 1 1 ED A 1 1 1 1 1 1 ) CE D 0 0 0 0 0 0 1 RH 9 9 9 9 9 9 ( OC FS 1i1 i5I8 IIl8 0 2 3 4 5 6 7 N 3 3 3 3 3 3 FS 1 <