ML18030A254
| ML18030A254 | |
| Person / Time | |
|---|---|
| Site: | Susquehanna  |
| Issue date: | 04/14/1981 |
| From: | Curtis N PENNSYLVANIA POWER & LIGHT CO. |
| To: | Youngblood B Office of Nuclear Reactor Regulation |
| References | |
| RTR-NUREG-0737, RTR-NUREG-737, TASK-2.E.4.2, TASK-TM PLA-715, NUDOCS 8104170381 | |
| Download: ML18030A254 (2) | |
Text
0 REGULATORY INFOR!1ATIOM DISTRIBUTION SYSTF<<(RIDS)
ACCESSIO.'3 NBR: 8104170381 DOC ~ rlATE: Rl/04/14 l'lOTARIZED:
HO FACIL:50-367 Susauehanna Steam Electr ic Station)
Unit
- 1) Pennsylva 50 388 Susauehanna Steam Electric Station)
Unit 2) Pennsylva AUTH ~ MA,'nE 'UTHOR AFF ILI AT IO"3 CURT IS) <<.4'ennsylvania Power 4 Light Co ~
PEC I P ~ VA~lE-RECIPIENT AFFILIATIn.<<
YOUNGBLOOD)R.J.
Licensina Branch 1
DOCKET 050 0387 SUBJECT!
Amends resoonse to iwUREC)-0737 Item ICE.4.2 re containment isolation deoendaoiiity.Util has initiated oesion chanae to orevent automatic ooenino of valves that ooen on isolation sianai reset.
DIsTRIBUTIDN conE:
R001s coPIEs PEcETvED:LTR FENcL sI z~:
TITLE: oSAR/FSAR Ah'DTS and Related Corresoondence NOTES:Send I&E 3 conies FSAR l! all Send T&E 3 cooies FSAR
& all amen)is.
amends.
050003B7 05000380 RECI PIENT ID CODE/NA~E A C T I 0 ~'!:
A/ 0 L I C E,'l S KiG RUSFBROOK)(a.
INTEHllAL: ACC ID KVAL RR? b CHEM E vG RR 08 CORE PFRF BR 10 EivEPG P~FP
?2 GEOSC IENCES 14 hYD/GFO BR 15 I~,E 0b LI C QUA I F R
,VECH EVG PR 15 NRC PDR 02 OP I IC BR PPOC/TST REi/
20 RAi ESS BR22 nl ST>UCT F.'uG BR25 COPIES LTTR ESCL 1
1 1
1 1
1 2
1 1
1 1
1 1
1 RECIPIENT ID COnE/NAriF YOUNGBLOOD)B STAR'K)R, 04 AUX SYS BR 07 CONT SYS BR Oo EFF 7R SYS BR12 EQUIP CASUAL HR13 limni>
FPC T ENG BR I&C SYS RR 16 LIC GUID BR vATL EVG BP 17
'AP A OELD PO')iER SYS r R 1 o QA dR 21 REAC SYS
".R 23 SIT ANAL BP 24 SYS tn;TEoAC BP COP?ES I TTR E<<
L 1
1 1
1 1
3 1
1 1
1 1
1 1
1 0
1 1
1 1
1 1
1 EXTERNAL:
!AS I C 27 n5 16 1
1 LPDR 03 1
1
>g 'iS
~F'g TOTAL NUqBER OP COPIES REQUIRED:
LTTR 57 ENCL
TWO NORTH NINTH STREET, AI.LENTOWN, PA. 18101 PHONE~ (2 I 5) 770-5151 n
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NORMAN W. CURTIS vice president-Engineering rt construction-Nuclear 770 5381 April 1$,
1981 iMr. B. J. Youngblood, Chief Licensing Branch No.
1 Division of Licensing U.S. Nuclear Regulatory Commission Washington, D.C.
20555
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<o, SUSQUEHfQUA STEAM ELECTRIC STATION CLARIFICATION TO RESPONSE ON CONTAINMENT ISOLATION ER 100450 FILE 841-12 PLA-715
Dear iver. Youngblood:
The purpose of this letter is to amend our response to NUREG 0737 item II.E.4.2 (containment isolation dependability).
Part 4,of this requirement states that no containment isolation valves should automatically open upon isolation signal reset.
The response was sent by a letter from N. W. Curtis on March 16, 1981 (PLA-659).
This response states that all except a few valves do not auto-matically open on isolation signal reset.
Justification is provided for those valves that do open.
We have completed an audit which has identified additional valves that open on isolation signal reset.
We have initiated a design change to prevent the automatic opening of these valves.
The first paragraph of the response to part 4 of item II.E.4.2 should be modified as follows:
(4)
All containment isolation valves, except those listed below, will not automatically open on logic reset.
Some valves other than those listed below require corrective action to comply with this requirement.
All such actions will be completed prior to fuel load.
An overide of any isolation signal will not cause automatic opening of any isolation valve.
Very truly yours,
/7 Cd. ~v~~/
N.
W. Curtis Vice President-Engineering 6 Construction-Nuclear
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PENNSYLVANIA POWER 8
LIGHT COMPANY