ML18030A130

Interim Rept,Per 10CFR50.55(e) & Part 21,re Premature Time Out & Drifting Set Points for Pneumatic Time Delay Relays Associated W/Agastat 7000 & GE CR 2820 Relays.Bechtel & Util Analyzing Safety Impact

ML18030A130
Person / Time
Site:	Susquehanna
Issue date:	07/11/1980
From:	Curtis N PENNSYLVANIA POWER & LIGHT CO.
To:
References
REF-PT21-80-255-000 PLA-508, NUDOCS 8007180434
Download: ML18030A130 (3)

Text

REGULATORY FORMATION DISTRIBUTI004 SY M (RIDS)

~~li ACCESSION NBR:8007180434 DOCRDATE: 80/07/11 NOTARIZED: NO DOCKET FAG IL Susaus hanna Steam Electric Stationi Unit li Pennsylva 05000387 50 388 squehanna Steam Electric Stationi Unit 2i Pennsylva 05000388 A T ~, AUTHOR AFFILIATION C RTIS,IV ~ W ~ Pennsylvania Poser 8 Light Co ~

REC IP NAME REC1P IENT AFFILIATION

SUBJECT:

Interim rept'er 10CFR50.55(e) 8 Part 21Pr e pr ematur e time out 8, drifting set points for pneumatic time delay relays associated w/Agastat 7000 8 GE CR 2820 relays,Bechtel util analyzing safety impact, OISTRISUTION COOS: SOI90 COPIES RECEIVES:LTR g ENCL Q SIZE:

TI TI.E: Construction Oe f i c i ency Report ( 10CFR50 ~ 55E)

NOTES:Send I8E 3 copies FSAR 8 all amends'5000387 05000388 REC IP IEN T COPIES RECIPIENT COP IES ID CODE/NAME LTTR ENCL ID CODE/NAME LTTR ENCI.

ACTION: A/D LICENSNG 21 1 YOUtIIGBLOOOiB 15 1 RUSHBROOKPM, 20 1 SERV ICED IUI ~ 20 1 STARKgR ~ 14 1 1 IN TERN AL: AO/RC I/ IE 1 AEOO 1 1 0/DIR HUM FAC S 1 1 DIRPHUM FAC SFY 1 1 EDO 4 STAFF 07 1 1 EQUIP QUaL BR16 1 1 F IELO COOR/I E13 1 IKE 05 2 2 LIC QUAL BR 1 i4IP A 08 1 1 NRC PDR 02 1 1 OELO 23 1 1 10 PR G F IL

~

REV BR RDS DEV 11 01 1

1 1

1 1

QA BR RUTHERFORD i 00 0 IE 1

1 1

1 EXTERNAL; ACRS 24 16 ie LPOR NSIC 04 1 1 JVL P > )q80 TOTAL NUMBER OF COPIES REQUIRED: LTTR 41 ENCL 41

P Pal TWO NORTH NINTH STREET, ALLENTOWN, PA. 18101 PHONER t215) 821-5151 NORMAN W. CURTIS Vice President- Engineedng 8 Construction-Nuclear 821-5381 July 1 1, 19 80 Mr. Boyce H. Grier Director, Region I U. S. Nuclear Regulatory Commission 631 Park Avenue King of Prussia, Pennsylvania 19406 SUSQUEHANNA STEAM ELECTRIC STATION INTERIM REPORT OF A DEFICIENCY ON AGASTAT AND GENKM, ELECTRIC T IMING RELAYS ERs 100450/100508 FILE 840-4/900-10 PLA-508

Dear Mr. Grier:

This letter serves to confirm information provided by telephone to NRC Inspector Mr. R. Gallo by Mr. A. R. Sabol of PP&L on April 28, 1980. During that conversation, Mr. Gallo was advised that the subject condition was under evaluation for reportability under the provisions of 10CFR50.55(e).

The deficiency involves premature time out and driftfag set points for penumatic tMe delay relays. PP&L and Bechtel are studying the deficiencies associated with both Agastat 7000 series and General Electric CR 2820 relays.

l These 'relays are used in saf ety related systems and hence their improper operation could affect the saf e operation of the nuclear power plant . Therefore, the def iciency has been determined to be reportable under the provisions of 10CmSO. SS (e)

Becht el and PP&L are in the process of analyzing the safety 'pact of the deficiency and are formulating a corrective action plan. Bechtel has issued MCAR 1-54 to document the def iciency and effect correction.

Since the details of this report provide information relevant to the reporting requirements of 10CFR21, this correspondence is considered to also discharge any formal responsibility PP &L may have for report ing in comp 1 iance thereto .

We will advise the Commission of a date by which a final report will be made available.

$0 q)o S00IT380 I5~ P.NNEYLYANIA POWER P LIGHT COMPANY

Mr. Boyce H. Grier July 11, 1980 Very truly yours, N. W. Curtis Vice president Eng-dneering S Ccnstructicn-guclesr FLW/ARS: mcb cc: Mr. Victor Stello (15)

DirectorWffice of Inspection & Enforcement U. S, Nuclear Regulatory Commission Washington, D.C. 20555 Mr. G. McDonald, Director Office of Management Xnformation & Program Control U. S. Nuclear Regulatory Commission Washington, D.C. 20555 Mr. Robert M. Gallo U. S. Nuclear Regulatory Commission P. 0. Box 52 Shickshinny, Pennsylvania 18655