ML20135E117

Special Rept:On 970218,new Seismic Monitor Equipment Was Installed.Dimensional Incompatibilities Was Discovered Between Existing & New Equipment.New Seismic Monitor Will Be Installed,Tested & Placed in Svc by 970306

ML20135E117
Person / Time
Site:	LaSalle
Issue date:	02/27/1997
From:	Dacimo F COMMONWEALTH EDISON CO.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
NUDOCS 9703060274
Download: ML20135E117 (2)

Text

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J' ',.

Commonwealth lihmn Company

, IAalle Generating Station 2601 North 2Ist Road Marwilles,11. 61.H I-9757

. . Tc!Misd57&"61

, l February 27,1997 United States Nuclear Regulatory Commission Attention: Document Control Desk -

. Washington, D.C. 20555

Subject:

Seismic Monitoring Instrumentation

Reference:

Special Report Pursuant to LaSalle Unit 1 and 2 Operating License NPF-11 and NPF-18,  ;

Specification 3.3.7.2 and 6.6.C, letter from D.J. Ray, ,

LaSalle Station Manager, to Document Control Clerk,  !

U.S. NRC, dated November 26,1996.

The reference letter submitted a LaSalle County Station Special Report in accordance with LaSalle Unit 1 and 2 Operating License NPF-11 and ,

NPF-18, Appendix A and Technical Specification 3.3.7.2 and 6.6.C.

Pursuant to this Technical Specification, LaSalle submitted the Special Report and subsequent plan to address installing the new seismic monitoring equipment.

The reference letter stated that the new seismic monitor would be installed per the design change package, tested and placed in service by February 28,1997. It wili' not be possible to complete installation by February 28,1997, due to problems discovered during installation of the new ,

system.

The new seismic monitor equipment was installed on February 18,1997. At that time, it was discovered that there were dimensional incompatibilities between the existing and new equipment. Resolution will require orJering new equipment panels with a lead time of 8-10 weeks. Installation and testing will require an additional 4-6 weeks.

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Based on the above, we are submitting this supplement to the Special Report of November 26,1996, to inform you of our revised schedule. The

, new seismic monitor will be installed, tested and placed in service by June 30,1997.

! If there are any questions or comments conceming this letter, please refer them to me at (815) 357-6761, extension 2212.

Resp ully, 7

Fred Dacimo -

Plant General Manager s

LaSalle County Station j .

I

! cc: A. B. Beach, NRC Region ill Administrator J

M. P. Huber, NRC Senior Resident inspector - LaSalle  :

D. M. Skay, Project Manager - NRR - LaSalle .

', F. Niziolek, Office of Nuclear Facility Safety - IDNS I 4

DCD - Licensing (Hardcopy: Electronic: )

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