ML052650061

T.S. for License Amendment, Regarding Alternative Means for Monitoring Control or Shutdown Rod Position

ML052650061
Person / Time
Site:	Watts Bar
Issue date:	09/20/2005
From:	Pickett D NRC/NRR/DLPM/LPD2
To:
Pickett D, NRR/DLPM, 415-1364
Shared Package
ML052300201	List: ML052300162 ML052650061
References
TAC MC1419
Download: ML052650061 (3)

Text

Rod Position Indication 3.1.8 3.1 REACTIVITY CONTROL SYSTEMS 3.1.8 Rod Position Indication LCO 3.1.8 The Analog Rod Position Indication (ARPI) System and the Demand Position Indication System shall be OPERABLE.

APPLICABILITY: MODES 1 and 2.

ACTIONS

__._-_------.---._--_-----_---------- ------------------- - --N P- - - -- -- - - - - - -- - - -- -- - - - - - -- -- -- -- - - - - -- - - - -

Separate Condition entry is allowed for each Inoperable rod position indicator per group and each demand position indicator per bank.

CONDITION REQUIRED ACTION COMPLETION TIME

---

NOTE----------------- A.1 Verify the position of the rods Once per 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> Rod position monitoring by with inoperable position Required Actions A.2.1 and A.2.2 indicators by using movable may only be applied to one incore detectors.

inoperable ARPI and shall only be allowed: (1) until the end of the OR current cycle, or (2) until an entry into MODE 5 of sufficient duration, A.2.1 Verify the position of the rod with 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> whichever occurs first, when the the inoperable position indicator repair of the inoperable ARPI can by using movable incore AND safely be performed. Required detectors.

Actions A.2.1, A.2.2 and A.2.3 Once every 31 days shall not be allowed after the plant thereafter has been in MODE 5 or other plant condition, for a sufficient AND period of time, in which the repair of the inoperable ARPI could have 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br />, if rod control safely been performed. system parameters

... - -- - . - indicate unintended movement A. One ARPI per group AND Inoperable for one or more groups.

(continued)

Watts Bar-Unit 1 3.1-17 Amendment 58

Rod Position Indication 3.1.8 ACTIONS CONDITION REQUIRED ACTION COMPLETION TIME A. (continued) A.2.2 Review the parameters of the 16 hours1.851852e-4 days <br />0.00444 hours <br />2.645503e-5 weeks <br />6.088e-6 months <br /> rod control system for indications of unintended rod AND movement for the rod with an inoperable position indicator. Once per 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> thereafter AND A.2.3. Verify the position of the rod with 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br />, if the rod an Inoperable position indicator with an inoperable by using movable incore position indicator is detectors. moved greater than 12 steps.

AND Prior to increasing OR THERMAL POWER above 50% RTP and within 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> of reaching 100% RTP A.3 Reduce THERMAL POWER to 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> less than or equal to 50% RTP.

B. One or more rods with 8.1 Verify the position of the rods 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br /> inoperable position with Inoperable position indicators have been moved indicators by using movable in excess of 24 steps in one incore detectors.

direction since the last determination of the rod's OR position.

B.2 Reduce THERMAL POWER to 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> less than or equal to 50% RTP. I (continued)

Watts Bar-Unit 1 3.1-18 Amendment 58

Rod Position Indication 3.1.8 ACTIONS (continued)

CONDITION REQUIRED ACTION COMPLETION TIME C. One demand position C.1.1 Verify by administrative means Once per 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> indicator per bank all ARPIs for the affected banks inoperable for one or more are OPERABLE.

banks.

AND C.1.2 Verify the most withdrawn rod Once per 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> and the least withdrawn rod of the affected banks are less than or equal to 12 steps apart. I OR C.2 Reduce THERMAL POWER to 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> less than or equal to 50% RTP. I D. Required Action and D.1 Be in MODE 3. 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> associated Completion Time not met.

SURVEILLANCE REQUIREMENTS SURVEILLANCE FREQUENCY SR 3.1.8.1 Verify each ARPI agrees within 12 steps of the group 18 months demand position for the full indicated range of rod travel.

Watts Bar-Unit 1 3.1 -19 Amendment 58