ML19206B199

Forwards List of Unresolved Items in Instrumentation,Control & Electrical Sys.Responses Were Scheduled for 760120 & Have Not Been Received.Requests Prompt Reply by Applicant

ML19206B199
Person / Time
Site:	Crane
Issue date:	03/12/1976
From:	Tedesco R Office of Nuclear Reactor Regulation
To:	Deyoung R Office of Nuclear Reactor Regulation
References
NUDOCS 7905080043
Download: ML19206B199 (2)

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Docket No. 50-320 R. C. DeYoung, Assistant Director for L*w"sts, DPM UNRESOLVZD ITEMS IN ELECTRICAL, INSTRUMENTATION AND CONTROL SYSTEMS FOR THREE MILE ISLAND UNIT NC43ER 2 Enclosed is a list of electrical, instrumentation and centrol systems items for Three Mile Island Unit Number 2 which remain unresolved as of today. We nota that each of these items has been previously identified to the applicant and trat it was stated at the December 18, 1975, meeting with the applicant that the responses to these items were scheduled for January 20, 1976.

We request that the applicant be asked to address these unresolved items promptly. Ferther, it is i= perative that adequate responses to these itema be submitted by early April, 1976, to facilitate the EICSB to complete their input to the Safety Evaluation Report for Three Mile Island Unit Nu:aber 2, consistant with the overall project schedule.

Oririnal siced by.

Robert L. Tedesco Robert L. Tedesco, Assistant Director for Plant Systems Division of Systems Safety

Enclosure:

As Stated cc:

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ENCLOSURE UNRESOLVED ITEMS IN INSTRUMEh7ATION, CONTROL AND ELECTRICAL SYSTEMS FOR THREE MILE ISLA?,T) UNIT NUMBER 2 (To obtain corresponding item nu=bers, see listing entitled " Pre-Safety Evaluation Report Items of Concern for Three Mile Island Unit Nu=ber 2.'S Item 1 B&W Topical Report BAW-lC003 Item 2 Response Time Testing Item 5 E=ergency Feedwater Pump Control - (Revised drawing has not been received)

Item 7 Safety Related Display Instru=entation Item 9 Bypassed Stacus Indication Item 10 Hydrogen Re-Cc=biner Qualification Item 11 Environ = ental Qualification of Safety-Related Equipment Item 12 EJectrical Penetrations Item 13

'7 0 Q Fire Stops and Seals g) *6 c

i-Ite: 14 Redundant Safety Buses - (Confor=ance to RC 1.6)