ML20150D489

From kanterella
Jump to navigation Jump to search
Forwards Safety Evaluation Re Util 871027 Submittal to Reconfigure Main Steam Line Rupture Detection Sys Indicating Lamp During Cycle 8 Refueling Outage.Nrc Finds Sys Acceptable & in Compliance W/Ieee Std 279-1971
ML20150D489
Person / Time
Site: Three Mile Island Constellation icon.png
Issue date: 03/18/1988
From: Hernan R
Office of Nuclear Reactor Regulation
To: Hukill H
GENERAL PUBLIC UTILITIES CORP.
Shared Package
ML20150D491 List:
References
NUDOCS 8803240303
Download: ML20150D489 (2)


Text

= .

Docket No. 50-289 ISR 1 B 1933 Mr. Henry D. Hukill, Vice President and Director - TMI-I GPU Nuclear Corporation P. O. Box 4E0 Middletown, Pennsylvania 17057

Dear Mr. Hukill:

SUBJECT:

TMI-1 MAIN STEAM LINE RUPTURE DETECTION SYSTEM The NRC staff has completed its review of the Three Mile Island Unit 1 Main Steam Line Rupture Detection (MSLRD) system and has made a finding that the design of this system is acceptable insofar as compliance with IEEE Standard 279-1971. The purpose of this letter is to inform you of that finding.

As you know, GPU Nuclear made a conmitment to upgrade the MSLRD system to safety-c;rade standards and completed that upgrade in early 1987 as part of the Heat Sink Protection System (HSPS) installation. The staff issued Anendrent No. 124 to the TMI-1 operating licerse on March 8, 1987 to provide appropriate technical specifications for operating these systems but had not completed a review of the MSLRD at that tine. This review is ocw complete and a copy of the staff's safety evaluation is enclosed for your infonnation and records. As discussed in the enclosed safety evaluation, GPU Nuclear agreed in a letter dated October 27, 1987 to reconfigure the MSLRD bypass indicating lamp during the Cycle 8 refueling outage. This agreement was responsive to a human factors concern raised by the staff during its review.

Should you have any questions on this matter, please contact rie on (301 490-1320.

Sincerely,

[

Rcnald W. Hernan, Senior Project l'anager Pro.iect Directorate I-4 Division of Reactor Projects I/II Office of Nuclear Reactor Regulation

Enclosures:

As stated cc w/ enclosure:

See next page DISTRIBUTION

  1. DocketJ11ee R. llernon

'IfRC A Local PDRs OGC-WP PC#I-4 Rdg. E. Jordan S. Varga J. Ps.rtlow B. Boger ACRS (10)

S. Norris Grey File LA:PDI- ? PM:PDI ah, -

/

DES >>fCB 6

D:P1 -,

Sherri RHernan:b6 SN erry JSto N 02/tr/8 ~A 02//7/88 031/88 0J/f/88-0803240303 Bec313 ADOCK O py I DR $9 ,

s l l

l Mr. Henry D. Hukill Three Mile Island Nuclear S'ation, 4 GPU Nuclear Corporation Unit No. 1  !

l cc G. Broughton Richard Conte 0&M Director TMI-1 Senior Resident Inspector (TM1-1)  !

GPU huclear Corporation U.S.N.R.C. I Post Office Box 4E0 Post Office Box 311 l Middletown, Pennsylvania 17057 Middletown, Pennsylvania 17057 Richard J. McGeey ,

Mar.ager, PWR Licensing Pegional Aoministrator, Pegion I '

GPU Nuclear Corporation U.S. Nuclear Regulatory Comission  ;

100 Interpace Parkway 475 Allendale Road Parsippany, New Jersey 70754 King of Prussia, Pennsylvania 19a06 C. W. Smyth Robert B. Borsum TPI-1 Licensing Panager Babcock & Wilcox GPU Nuclear Corporation Nuclear Power Generation Division Post Office Box 480 Suite 525 Fiddletown, Pennsylvania 17057 1700 Rockville Pike Rockville, Maryland 20852 Ernest L. Blake, Jr., Esq. Governor's Office of State Planning Shaw, Pittman, Potts & Trowbridge and Development 2300 N Street, N.W. ATTN: Coordinator, Pennsylvania Washington, D.C. 70037 State Clearinghouse Post Office Box 1323 Harrisburg, Pennsylvania 17120 Larry Hochendoner Thomas M. Gerusky, Director Dauphin County Comnissioner Bureau of Radiation Protection Cauphin County Courthouse Pennsylvania Department of Front and Market Streets Environnental Resources Harrisburg, Pennsylvania 17120 Post Office Box 7063 Harrisburg, Pennsylvania 17120 David D. Faxwell, Chairtran Cocketing and Service Section Board of Supervisors Office of the Secretary Londonderry Township U.S. Nuclear Regulatory Comission RFC#1 - Geyers Cherch Road Washington, D.C. 70555 Middletown, Pennsylvania 17057