ML20066J451

Advises That ATWS Initial Test Program Mods Completed at Units 1 & 2 on 900227 & 1026,respectively.Initial Test Program Completed at Unit 2 on 870814

ML20066J451
Person / Time
Site:	Byron
Issue date:	02/20/1991
From:	Schuster T COMMONWEALTH EDISON CO.
To:	Murley T NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM), Office of Nuclear Reactor Regulation
References
TAC-59077, TAC-63258, TAC-64127, ZNLD-651:8, NUDOCS 9102260199
Download: ML20066J451 (1)

Text

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l

• Commonwealth Edison

.g. 1400 Opus Place Downers Grove, Illinois 60515 February 20, 1991 Dr. Thomas E. Hurley, Director i Office of Nuclear Reactor Regulation L U.S. Nuclear Regulatory Commission 1 Washington, D.C. 20555 Attn: Document Control Desk

Subject:

Byron Station Units 1 and 2 Articipated Transient Hithout Scram Rule Implement 3 tion and Unit 2 Initial Test Program Completion MC_Qorkt.t-Nos. 50-454 & 50:.415 4

Reference:

a) TAC #59077, 63258 and 64127 Dear Dr. Hurli.y.

The purpose of this letter is to convey Implementation completion dates for Anticipated Transient Hithout Scram (ATHS) modifications. Byron Units 1 and 2 modifications were completed by February 27, 1990, and October 26, 1990

i. - respectively. In addition, the Byron Unit 2 " Initial Test Program" was L completed by August 14, 1987, when startup testing for Unit 2 was identified as completed.

Please direct any further questions on this subject to this office.

Respectfull ,

'l Terence K. Schuster Nuclear Licensing Administrator TKS/rg cc: A.H. Hsia - NRR Resident Inspector - Byron A. Bert Davis 9102260199 910220 0

DR ADOCK0500g4 (k \\Q i

\

ZNLD/651:8 ~

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