ML20207B729

Correction to Amend 106 to License NPF-47.TS Pages 3.4-4 & 3.4-5 Were Inadvertently Omitted When Amend Was Issued.Ts Bases Page B 3.3-25 Contained Typos That Did Not Reflect marked-up Page Submitted by Original Amend Application

ML20207B729
Person / Time
Site:	River Bend
Issue date:	05/26/1999
From:	NRC (Affiliation Not Assigned)
To:
Shared Package
ML20207B732	List: ML20207B729
References
NUDOCS 9906020078
Download: ML20207B729 (4)

Text

E.

l.

h CORRECTION TO AMENDMENT NO.106 TO FACILITY OPERATING LICENSE NO. NPF-47 l

BlVER BEND STATION. UNIT 1 l

Please remove and replace the following Technical Specification pages:

Remove IDand 3.4-4

-3.44 l

3.4-5 3.4-5 l

B 3.3-25 B 3.3-25 i

l t

l l

l l

~

9906020078 990526 PDR ADOCK 05000468 P

PDR L

r --

t Recirculation Loops Operating 3.4.1 i

l l

\\

)

l This Page Left Intentionally Blank.

RIVER BEND 3.4-4 Amendment No. M 106

Recirculation Loops Operating 3.4.1 1

This Page Left Intentionally Blank.

RIVER BEND 3.4-5 Amendment No. 61 106 l

L

I

-o 4

RPS Instrumentation B 3.3.1.1 BASES SURVEILLANCE SR 3.3.1.1.2 REQUIREMENTS l

(continued)

To ensure that the APRMs are accurately indicating the true core average power, the APRMs are calibrated to the reactor power calculated from a heat balance. The Frequency of once per 7 days l

is based on minor changes in LPRM sensitivity, which could affect the APRM reading between performances of SR 3.3.1.1.8.

A restrictio'n to satisfying this SR when < 25% RTP is provided

{

I that requires the SR to be met only at 2 25% RTP because, it is difficult to accurately maintain APRM indication of core THERMAL POWER consistent with a heat balance when < 25% RTP. At low 1

power levels, a high degree of accuracy is unnecessary because of the large inherent margin to thermal limits (MCPR and APLHGR).

At 2 25% RTP, the Surveillance is required to have been satisfactorily performed within the last 7 days in accordance i

with SR 3.0.2.

A Note is provided which allows an increase in THERMAL POWER above 25% if the 7 day Frequency is not met per SR 3.0.2.

In this event, the SR must be performed within 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> after reaching or exceeding 25% RTP. Twelve hours is based on operating experience and in consideration of providing a reasonable time in which to complete the SR.

SR 3.3.1.1.3 i

The Average Power Range Monitor Flow Biased Simulated Thermal Power High Function uses a trip level generated by the flow control trip reference card based on the recirculation loop drive flow. The drive flow is adjusted by a digital algorithm according to selected drive flow alignment dip switch settings.

This SR sets the flow control trip reference card to ensure the drive flow alignment used results in the appropriate trip level being generated from the digital components of the card.

The Frequency of once following a refueling outage is based on the expectation that any change in the core flow to drive flow functional relationship during power operation would be gradual and s

(continued)

RIVER BEND B 3.3-25 Amendment 106 1

J l