ML20215C681

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Forwards Confirmatory Vessel Water Level Drop Tests (Lst 86-183). Test Successfully Demonstrated Level 3 Sor Instruments Operated Properly & Performed Intended Safety Functions within Acceptable Tolerances
ML20215C681
Person / Time
Site: LaSalle Constellation icon.png
Issue date: 12/02/1986
From: Allen C
COMMONWEALTH EDISON CO.
To: Harold Denton
Office of Nuclear Reactor Regulation
Shared Package
ML20215C684 List:
References
2466K, NUDOCS 8612150326
Download: ML20215C681 (1)


Text

  • 7-

/ \ CoHNnonwealth Edloon f ~ ( One First Nabonel Plaza, Chcago, Illinois

\ / Address Reply to: Poet Omco Box 767 k._/ Cheago, Illinois 60600 0767 December 2, 1986 Mr. Harold R. Denton, Director Office of Nuclear Reactor Regulation U.S. Nuclear Regulatory Commission Washington, DC 20555

Subject:

LaSalle County Station Unit 2 Confirmatory Vessel Water Level Drop Tests NRC Docket No. 50-374

Dear Mr. Denton:

The purpose of this letter is to formally docket the results of the LaSalle County Station Unit 2 Confirmatory Vessel Level Drop Tests. These tests were conducted on July 31, 1986 and on August 10, 1986. The results were shared with your staff through Dr. A. Bournia.

Attached is a summary of three Reactor Water Level Drop tests which verified the operability of Level 3 and ADS permissive switch setpoints.

This test was part of the NRC approved corrective action plans to confirm adequacy of SOR instrumentation for startup and interim operation of LaSalle Unit 2 until the next refueling outage.

The purpose, test description, results and conclusions are discussed in this summary. This test successfully demonstrated that the Level 3 SOR instruments operated properly and performed their intended safety functions within acceptable tolerances as acknowledged in the LaSalle Technical Specifications.

please direct any questions you may have regarding this matter to this office.

One signed original and ten (10) copies of this letter and its attachments are provided for your use.

Ve y truly your ,

C. M. Allen Nuclear Licensing Administrator 1m 8612150326 061202 PDR ADOCK 05000374 P PDR Attachments cc: Dr. A. Bournia - NRR Resident Inspector - LSCS 2466K l]ool l