ML20084L789

Telecopy Ro:On 740722,during Routine Valve Operability Test, Torus Spray Valve MO-2-1501-19B Failed to Open.On 740702, PS-2-263-51A Found Drifting.Caused by Binding & Instrument Drift.Valves Wired Shut

ML20084L789
Person / Time
Site:	Dresden
Issue date:	07/22/1974
From:	Stephenson B COMMONWEALTH EDISON CO.
To:	James Keppler NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
Shared Package
ML20084L783	List: ML20084L782 ML20084L786 ML20084L789
References
NUDOCS 8305230726
Download: ML20084L789 (2)

Text

__. _ _ - _ _ - - _ _ _ _ - _ _ - _ _ _ _ _ _ - - - - _ - _

O O

~

074 M 22 PM 4 II l

c O

2 ry s

N

'g' !_; y e,o V

^ J..

g u

E,

,t'v*

Tt )

y' D

'i" i l i i ' i l "' '3

(~ f:,

1 C 'B ) 1 2 0? MCP 9 3) PD 07/2P/7 4 1559 Trc r;: y7 7 3 cyu 1; <

TW

'C~7IS ill

'9F 07-22 155P CDT P " ', t r. :

v::FPLERy

.:" 71R., DIhECT0 HATE OF REGULATORY OPERATIONS P~"IU" U

t T C I C r * ~;--M Y C C '"

799 h00SEVELT 90AD y

gi, m i.., - r i_i v. o

t. i i. enty7 m

' y 17 a r. _1,,733r" NU" LEAR POV EFx ST A T IO N U.*'IT 2

%N T:il e 'i ! LL X"F IT '

ri"b ER S AT IO'J V IT H F.h WAURA 0F YOUR OFFICE same AT llo ' J THIr 3*17 "G"CEh"I"r ahEAMER TRIP CF UNIT 2 9

g-T.u h t' taLV~

• 'C-r-15 01 - 190. V ALVE WCULD NOT OPEN DURING l

,'PrT'

' ~ ~, ' - I I. T I V TFST. OPETiciCh XM.'UALLY PROKE V ALVE t,

FL

. '. i. V '. L \\., C PF ')F D ^YD CLCSED "Ckr.All'Y buT BRE;KER TRIPPED j

yj

.7pp,;77oc ;

7 p r ': L ALE ^ ECC'C TIME. CAUSE IS UNDER i

e IT# i T I ' " T I '. ". ihIP C"C4hc.D Arisn,ID'!IGHT 7-22-74.

[

7

.9 al_

T T'

. r ?;T I " r_

V, L v. '+

ciILITY TZST LPCI v.0-2-1501-22A ea EaGw a

,t

~

g v.

-: - 1: ' l -n THE{'at c.vrhLC A DS A CTUATED 'JHE" ATTEMPTING W

TC.J THr

t. ^. L t!

h c:v ~ ; ',.C A :

TEFET A"3 V ALVES EERE Cyrt' TT:"~ e rccTL1.

T. T F ' 0^CURhED A FTER "ID"IGHT 7-22-7 4.

,, y 'c L;,_*

,:'r (p cp':"

n v r;< p 1501-33E VAS DISCOVERED TO BE m

t>

st-T"'

W UT T 9: nP Ma'ILITY CHECV 7-2-74. VALVE WAS W

p,-

c c, r-

,. p r,,e r

,o,

.. I '. r_ ' C U_"..

- :rcr- -

,.77.-

r pe p nv. 7 eU:W E ILL A"CF 7-P-74 IT WAS g

W

. 7.- a -

77 p'_p.po_51-gna.HIFTED TO A SET. POINT h

c:

w P" 1C ^ ' r T O' P' F EEUi' 0F E04 PSI. THE SWITCH IS

.c;q r: r'

~

7

TF ST LF U T"S" /~nPSI TO SCRA" THE REACTOR l

rF

'nI" T im.T T ' ' V.u Er nE Nc! rULLY CPEN CR g

cp.m e -

y.y,.

ry T

CV: c3

'"CK 4 Fn, P..ICH TC THE o.

c l

u 7;

erq7o-vr - 7 t o ;;T W ':T '7C Ha "IC S T " SET TO A m

an am2

• isc 1

f 8305230726 761215 liSIC_.

TIC-f PDR ADOCK 05000237 l\\ba+-

S PDR

y V Ly c:, ' q ;;7/;, r '

L ;5 n 7.

I.

c. L ;: ^.

,e,7-

m'TI"-

Ir~!

' ~. : T ; U r.\\, 7. ! L L s " C F 7 7 4 IT WAS C T. i'c T.; T;i' T; ~

-.o u.' I T C : F.i-5 04C HAD CH AFITED TO A

o T,, c Le c7Lf iT"dEE T-

r. u. _ u#, ':~t I *; r: TO A I URB I!!E F ITt ST r ; a; p7.7:."I DILA' F LC 'i. TH IS 'JCULD d AVE 1

ess e rre r- -

ci.

r-TTT, e

f;;

cr,-

I" 1.n T ?a:T CF A TU:GI!:E TRIP h

,- i u t i.

1. ' a fi e r ' I Lt n. !"ST,UrT ':EC HA!: ICS IMMEDIATELY t

1 P

mo ! TL V t.1.v n::0 ' " # PC " D I'~ o TC LEC3 THM: 45 e

p

.c I

1"'

71 ' '

^

~

e3 3-7,r

. ~,, - -, g s;3 ~. : n ~

e n E

,, a..

Iv -

--en-c...--

g a 1 g

(' ' '

^t

i. ' j T,~ ' ' ' t': ^, ' ' [' a Y m

B Ea bO Q) i: r ' T'

,e b

eo r

JUL 2 2 1974 j

e u

y m

(

m S

L M

.IfiM3AUdL33:XOly3g

,3MYl'I4WS3 30 !I9fy,Hg BE G hV 53 W yta 03A!333tf O

e

N 3YL Q

O y

ec UNITED CTATE3 ATOMIC ENERGY COMMISSION i.

e 0T DIRECTORATE OF REGULATORY OPERATH3NS REGliON lil e

4tl o' 799 ROOSEVELT ROAD w

GLEN ELLYN. ILLINOIS 60137 (312) 35s.2460 s

A.

RO Inspection Report No.

Transmittal Date Distribution:

Distribution:

R0 Chief, FS&EB RO Chief, FS&EB RO:HQ (5)

RO:HQ (4)

DR Central Files L:D/D for Fuels & Materials Regulatory Standards (3)

DR Central Files Licensing (13)

RO Files RO Files B.

RO Inquiry Report No.

Transmittal Date Distribution:

Distribution:

R0 Chief, FS&EB RO Chief, FS&EB RO:HQ (5)

RO:HQ DR Central Files DR Central Files Regulatory Standards (3)

RO Files Licensing (13)

RO Files C.

Incident Notification From:

Commonwealth Edison Co.

50-237 (Licensee & Docke,t No. (or License No.)

Transmittal Date July 23, 1974 Distribution:

Distribution:

s RO Chief. FS&EB R0 Chief, FS&EB RO:HQ (4)

RO:HQ (4)

Licensing (4)

L:D/D for Fuels & Materials DR Central Files DR Central Files RO Files RO Files c--