NLS8600254, Informs That SPDS Declared Operable on 860731,meeting 850829 Confirmatory Order Requirement.Sys Reliability Demonstrated by Results of 1,000 H Run Test

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Informs That SPDS Declared Operable on 860731,meeting 850829 Confirmatory Order Requirement.Sys Reliability Demonstrated by Results of 1,000 H Run Test
ML20215G081
Person / Time
Site: Cooper Entergy icon.png
Issue date: 08/01/1986
From: Pilant J
NEBRASKA PUBLIC POWER DISTRICT
To: Long W
Office of Nuclear Reactor Regulation
References
RTR-NUREG-0737, RTR-NUREG-737 NLS8600254, TAC-51232, NUDOCS 8706230119
Download: ML20215G081 (1)


Text

GENERAL OFFICE Nebraska Public Power District

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NLS8600254 .

August 1, 1986 7 I

Project Manager - Cooper Nuclear Station BWR Project Directorate No. 2 Division of BWR Licensing U.S. Nuclear Regulatory Commission Washington, DC 20555 -

Attention: Mr. William O. Long

Subject:

Safety Parameter Display System (SPDS) Operability References (1) Letter from J. M. Pilant to D. B. Vassallo dated June 18,

~

1986, " Revised Response to NUREG-0737 Supplement 1, Emergency l Response Capability - Revision 6"

/

In Reference 1, the District committed to have the Safety Parameter Display System (SPDS) operational by July 31, 1986. This date was confirmed by an Order issued from the staff on August 29, 1985.

This letter is to inform you that the SPDS was declared operable on July 31, 1986 and that the confirmatory order commitment was raet. It should be noted that the power supply to the SPDS multiplexers is in a temporary con-figuration, and will be changed to a more reliable power supply in the near future. However, with its present power supply, the equipment passed its reliability criteria during the system verification and validation testing which included a 1000 hour0.0116 days <br />0.278 hours <br />0.00165 weeks <br />3.805e-4 months <br /> run test. The District considers that system reliability is demonstrated by these results and that the system is operable.

Sincerely, W C Ja 1. Pilant -

Manager, Technical Staff ,f Nuclear Power Group (, )

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