0CAN068913, Advises That Util Developing Appropriate Tech Spec for Inadequate Core Cooling Instrumentation Following Safety Review Committee Meeting on 890808,per NRC 890323 Request

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Advises That Util Developing Appropriate Tech Spec for Inadequate Core Cooling Instrumentation Following Safety Review Committee Meeting on 890808,per NRC 890323 Request
ML20246B312
Person / Time
Site: Arkansas Nuclear  Entergy icon.png
Issue date: 06/28/1989
From: James D
ARKANSAS POWER & LIGHT CO.
To:
NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
RTR-NUREG-0737, RTR-NUREG-737, TASK-2.F.2, TASK-TM 0CAN068913, CAN68913, TAC-66069, TAC-71615, NUDOCS 8907070278
Download: ML20246B312 (1)


Text

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=r-P. O Box 551 Utw Rock AR 72203 TN 501377 4000 June 28, 1989 OCAN068913 U. S. Nuclear Regulatory Commission Document Control-Desk-Washington, DC 20555

SUBJECT:

Arkansas Nuclear One - Units 1 & 2

. Docket Nos. 50-313 and 50-368 License Nos. DPR-51 and NPF-6 Schedule for Submittal of TS Change Request for ICC Instrumentation (RVLMS/HLLMS)

(TAC Nos. 66069 and 71615) -

Gentlemen:

NRC letter dated March 23, 1989 (MCNA038925) transmitted the safety evaluation of the Inadequate Core Cooling (ICC) instrumentation at AN0-1 and 2, which concluded that the ICC systems for both units are performing

. satisfactorily;and meet the design and operation requirements specified in NUREG-0737, Item II.F.2. In that letter the staff also requested that additional technical specifications be developed for the the Reactor Vessel Level Monitoring Systems (RVLMSs) for both AND units and the Hot Leg Level Measurement System (HLLMS) for AN0-1, and provided guidance for their.

preparation. Technical specifications for the other portions of the ANO ICC

.instrum'entation (subcooled margin monitors and core exit thermocouple) for both units have been submitted and approved previously.

It has been AP&L's position that Technical Specifications for the RVLMSs and the HLLMS were not necessary, since this instrumentation is intended solely to enhance the operator's ability to corroborate indications of approach to ICC conditions. Further, since inventory tracking instrumentation is not used to initiate E0P actions, it is not classified as a Type A variable as definied by RG 1.97. However, in accordance with the staff's request, AP&L is presently developing appropriate technical specifications for submittal following the next Safety Review Committee meeting scheduled on August 8, t

1989.

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