L-2017-086, Response to Request for Additional Information Regarding License Amendment Request 250, Modify Technical Specifications for Auxiliary Feedwater Actuation on Bus Stripping and on Trip of All Main Feedwater Pump Breakers

From kanterella
Jump to navigation Jump to search

Response to Request for Additional Information Regarding License Amendment Request 250, Modify Technical Specifications for Auxiliary Feedwater Actuation on Bus Stripping and on Trip of All Main Feedwater Pump Breakers
ML17138A377
Person / Time
Site: Turkey Point  NextEra Energy icon.png
Issue date: 05/18/2017
From: Summers T
Florida Power & Light Co
To:
Document Control Desk, Office of Nuclear Reactor Regulation
References
CAC MF9069, CAC MF9070, L-2017-086
Download: ML17138A377 (15)
v • d • e


Text

May 18, 2017 L-2017-086 10 CFR 50.90 U. S. Nuclear Regulatory Commission Attn: Document Control Desk Washington, DC 20555-0001 Re: Turkey Point Nuclear Plant, Units 3 and 4 Docket Nos. 50-250 and 50-251 Renewed Facility Operating Licenses DRR-31 and DPR-41 Response to Request for Additional Information Regarding License Amendment Request 250, Modify Technical Specifications for Auxiliary Feedwater Actuation on Bus Stripping and on Trip of all Main Feedwater Pump Breakers

References:

1. Florida Power & Light Company letter L-2016-233, License Amendment Request 250, Modify Technical Specifications for Auxiliary Feedwater Actuation on Bus Stripping and on Trip of all Main Feedwater Pump Breakers, December 21, 2016 (ADAMS Accession No. ML17012A084)
2. NRC E-Mail, Request for Additional Information for Turkey Point LAR 250 (CACs MF9069 and MF9070), April 19, 2017 In Reference 1, Florida Power & Light Company (FPL) submitted license amendment request (LAR) 250 for Turkey Point Units 3 and 4, which proposes a change to Technical Specification (TS) 3/4.3.2, Engineered Safety Features Actuation System Instrumentation, by modifying the requirements for Auxiliary Feedwater (AFW) Functional Unit (FU) 6.d, Bus Stripping, and AFW FU 6.e, Trip of all Main Feedwater (MFW) Pump Breakers, in Table 3.3-2, Engineered Safety Features Actuation System (ESFAS) Instrumentation. In Reference 2, the NRC staff determined that additional information is required to complete the review.

The enclosure to this letter provides FPL's response to the request for additional information (RAI).

In addition, as discussed in the enclosure, FPL is modifying several proposed changes that were included in Reference 1. The supplements included in this response provide additional information that clarifies the application, does not expand the scope of the application as originally noticed, and should not change the NRC staff's original proposed no significant hazards consideration determination as published in the Federal Register.

Florida Power & Light Company 9760 SW 344 St., Homestead, FL 33035

Turkey Point Nuclear Plant L-2017-086 Docket Nos. 50-250 and 50-251 Page 2of2 to the enclosure provides the affected TS pages marked up to show the proposed changes. Attachment 2 provides the retyped (clean copy) TS pages with revision bars to identify the proposed changes. Attachment 3 provides the affected TS Bases pages marked up to show the proposed changes. The TS marked up pages, retyped (clean copy) TS pages and TS Bases marked up pages supersede the corresponding pages provided in Reference 1. The TS Bases changes are provided for information only and ;xrill be incorporated in accordance with the TS Bases Control Program upon implementation of the approved amendment.

There are no new commitments in this submission.

Should you have any questions regarding this submission, please contact Mr. Mitch Guth, Licensing Manager, at 305-246-6698.

I declare under penalty of perjury that the foregoing is true and correct.

Executed on May 18, 2017.

Sincerely, 7~L Thomas Summers Regional Vice President - Southern Region Florida Power & Light Company

Enclosure:

Response to NRC Request for Additional Information Dated April 19, 2017 cc: USNRC Regional Administrator, Region II USNRC Project Manager, Turkey Point Nuclear Plant USNRC Senior Resident Inspector, Turkey Point Nuclear Plant Ms. Cindy Becker, Florida Department of Health

Turkey Point Nuclear Plant L-2017-086 Docket Nos. 50-250 and 50-251 Enclosure Page 1 of 4 Enclosure Florida Power & Light Company Response to NRC Request for Additional Information Dated April 19, 2017 Regarding License Amendment Request 250 Modify Technical Specifications for Auxiliary Feedwater Actuation on Bus Stripping and on Trip of all Main Feedwater Pump Breakers

.. - Proposed Technical Specification Pages (markup) - Proposed Technical Specification Pages (clean copy) - Proposed Technical Specification Bases Pages (markup), Information Only

Turkey Point Nuclear Plant L-2017-086 Docket Nos. 50-250 and 50-251 Enclosure Page 2 of 4 In an email memorandum dated April 19, 2017 (Reference 1), the Reactor Systems Branch (SRXB) and Technical Specification Branch (STSB) of the NRC Office of Nuclear Reactor Regulation, requested the additional information below regarding License Amendment Request (LAR) 250, Modify Technical Specifications for Auxiliary Feedwater Actuation on Bus Stripping and on Trip of all Main Feedwater Pump Breakers. The Florida Power & Light Company (FPL) response follows each information request.

SRXB RAI-1 TS 3/4.3.2, Engineered Safety Features Actuation System [ESFAS] Instrumentation, ACTION 23 in Table 3.3-2, [ESFAS] Instrumentation, requires entry into TS Limiting Condition for Operation (LCO) 3.0.3 with the number of OPERABLE channels one less than the specified required minimum channels OPERABLE per the table. LCO 3.0.3 requires the licensee to place the plant in at least HOT STANDBY (MODE 3) within the next 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br />, in at least HOT SHUTDOWN (MODE 4) within the following 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br />, and in at least COLD SHUTDOWN (MODE 5) within the subsequent 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />. The licensee proposed modifying ACTION 23 to replace the requirement to enter LCO 3.0.3 with a 48-hour completion time to restore operability and, if the completion time is not met, then enter into at least HOT STANDBY (MODE 3) within the next 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> and in COLD SHUTDOWN (MODE 5) within the following 30 hours3.472222e-4 days <br />0.00833 hours <br />4.960317e-5 weeks <br />1.1415e-5 months <br />. The proposed changes did not include a requirement to be at least HOT SHUTDOWN (MODE 4) within 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> after the MODE 3 entry, which is currently required in ACTION 23 via LCO 3.0.3. While the basis for the 48-hour completion time is discussed in the application, the licensee did not provide an explanation for the proposed removal of the HOT SHUTDOWN entry requirements, including its timing requirements. The staff requests the licensee to provide a justification for the removal of the requirement to be in at least HOT SHUTDOWN within the following 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> of entering HOT STANDBY when operability is not restored within the proposed completion time.

FPL Response In LAR 250, FPL proposed modifying ACTION 23 of Turkey Point Technical Specification (TS) 3/4.3.2, Table 3.3-2, to establish a 48-hour completion time for restoring an inoperable FU 6.d, AFW auto-start on Bus Stripping, or FU 6.e, AFW auto-start on Loss of All Main Feedwater (MFW) Pumps Breakers, instrument channel to OPERABLE status. In the event the 48-hour completion time could not be met, FPL proposed entry of the affected Unit into MODE 3 (HOT STANDBY) within 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> and into MODE 5 (COLD SHUTDOWN) within the following 30 hours3.472222e-4 days <br />0.00833 hours <br />4.960317e-5 weeks <br />1.1415e-5 months <br />.

However, further evaluation of the proposed change reveals that entry into MODE 5 is not warranted in the event of an inoperable FU 6.d or FU 6.e instrument channel in excess of the proposed 48-hour completion time. Once the plant is outside the TS Mode of Applicability, the TS no longer applies. As such, an ACTION that directs exiting the Mode of Applicability upon expiration of the allowable completion time is sufficient. This is also consistent with NUREG-1431, Standard Technical Specifications - Westinghouse Plants, Revision 4.0, Volume 1, Specifications (Accession No. ML12100A222) which does not

Turkey Point Nuclear Plant L-2017-086 Docket Nos. 50-250 and 50-251 Enclosure Page 3 of 4 require entry into MODE 5 upon expiration of the allowable completion time for protective functions that are not required in MODES 3 and 4.

Accordingly, FPL proposes a new ACTION 23(a) whereby entry into MODE 3 within 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> and MODE 4 within the following 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> is required in the event the proposed 48-hour completion time to restore an inoperable FU 6.d instrument channel is not met. The basis for this revised change is that MODE 4 is outside the Mode of Applicability for the FU 6.d, AFW auto-start on Bus Stripping, protective function. As such, proposed ACTION 23(a) is appropriate.

Similarly, FPL proposes a new ACTION 23(b) whereby entry into MODE 3 within 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> is required in the event the proposed 48-hour completion time to restore an inoperable FU 6.e instrument channel is not met. The basis for this revised change is that MODE 3 is outside the Mode of Applicability for the FU 6.e, AFW auto-start on Loss of All MFW Pumps Breakers, protective function. As such, proposed ACTION 23(b) is appropriate.

Revising Table 3.3-2, ACTION 23, to require exiting the Mode of Applicability upon expiration of the proposed 48-hour completion time does not alter the conclusion in LAR 250 that the proposed changes do not involve a significant hazards consideration pursuant to 10 CFR 50.92, and that there are no significant environmental impacts associated with the proposed changes.

Attachment 1 to this enclosure provides the affected TS pages marked up to show the proposed changes. Attachment 2 provides the retyped (clean copy) TS pages with revision bars to identify the proposed changes. Attachment 3 provides the affected TS Bases pages marked up to show the proposed changes. The TS marked up pages, retyped (clean copy)

TS pages and TS Bases marked up pages supersede the corresponding pages provided in Reference 2. The TS Bases changes are provided for information only and will be incorporated in accordance with the TS Bases Control Program upon implementation of the approved amendment.

STSB RAI-1 TS Table 3.3-2 requires Functional Unit 6.d to be operable in MODES 1, 2, and 3 (i.e., POWER OPERATION, STARTUP, AND HOT STANDBY, respectively). ACTION 23 requires entry into LCO 3.0.3 if the required number of instrument channels is not OPERABLE. The licensee proposed replacing the requirement to enter LCO 3.0.3 with a completion time and, if the completion time is not met, timing requirements to enter HOT STANDBY (MODE 3) and then COLD SHUTDOWN (MODE 5). Specifically, the licensee requested that if Functional Unit 6.d operability is not restored within the proposed 48-hour completion time, then the proposed ACTION would require entry into HOT STANDBY (MODE 3) within 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> and COLD SHUTDOWN (MODE 5) within the following 30 hours3.472222e-4 days <br />0.00833 hours <br />4.960317e-5 weeks <br />1.1415e-5 months <br />. The staff notes that if the plant was already in MODE 3 when the required actions are not met, the proposed changes would permit continuation of HOT STANDBY conditions for several hours and would only effectively require a time limit for entry into COLD SHUTDOWN.

Turkey Point Nuclear Plant L-2017-086 Docket Nos. 50-250 and 50-251 Enclosure Page 4 of 4 The TS Bases (ADAMS Accession No. ML16320A166) for LCO 3.0.3 state:

Specification 3.0.3 establishes the shutdown ACTION requirements that must be implemented when a Limiting Condition for Operation is NOT met and the condition is NOT specifically addressed by the associated ACTION requirements. The time limits of Specification 3.0.3 allow 37 hours4.282407e-4 days <br />0.0103 hours <br />6.117725e-5 weeks <br />1.40785e-5 months <br /> for the plant to be in the COLD SHUTDOWN MODE when a shutdown is required during the POWER MODE of operation. If the plant is in a lower MODE of operation when a shutdown is required, the time limit for reaching the next lower MODE of operation applies [emphasis added]. However, if a lower MODE of operation is reached in less time than allowed, the total allowable time to reach COLD SHUTDOWN, or other applicable MODE, is NOT reduced. For example, if HOT STANDBY is reached in 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br />, the time allowed to reach HOT SHUTDOWN is the next 11 hours1.273148e-4 days <br />0.00306 hours <br />1.818783e-5 weeks <br />4.1855e-6 months <br /> because the total time to reach HOT SHUTDOWN is NOT reduced from the allowable limit of 13 hours1.50463e-4 days <br />0.00361 hours <br />2.149471e-5 weeks <br />4.9465e-6 months <br />.

The staff interprets these bases to mean that if the inoperability is discovered while in MODE 3, then the time limits for reaching MODE 4 would apply. However, the proposed shut down times for ACTION 23 do not include the MODE 4 timing requirements equivalent to those in LCO 3.0.3.

Therefore, the staff requests the licensee to provide a justification for the proposed longer time the plant can remain in MODE 3, or to propose an alternative and associated justification, such as timing and mode entry requirements equivalent to LCO 3.0.3.

FPL Response As stated in the FPL response to SRXB RAI-1 above, FPL proposes a new ACTION 23(a) whereby entry into MODE 3 within 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> and MODE 4 within the following 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> is required in the event the proposed 48-hour completion time to restore an inoperable FU 6.d instrument channel is not met. Proposed ACTION 23(a) addresses the concerns identified in STSB RAI-1 by eliminating the requirement to enter MODE 5 since an ACTION that directs exiting the Mode of Applicability upon expiration of the allowable completion time is sufficient. Moreover, the time limit for entering MODE 4 in the event of an inoperable FU 6.d instrument channel in excess of the proposed 48-hour completion time is explicitly stated in the proposed ACTION 23(a), consistent with the timing requirements for entering MODE 4 in LCO 3.0.3. As such, proposed ACTION 23(a) is appropriate.

References

1. NRC E-Mail, Request for Additional Information for Turkey Point LAR 250 (CACs MF9069 and MF9070), April 19, 2017
2. Florida Power & Light Company letter L-2016-233, License Amendment Request 250, Modify Technical Specifications for Auxiliary Feedwater Actuation on Bus Stripping and on Trip of all Main Feedwater Pump Breakers, December 21, 2016 (ADAMS Accession No. ML17012A084)

Turkey Point Nuclear Plant L-2017-086 Docket Nos. 50-250 and 50-251 Attachment 1 ATTACHMENT 1 PROPOSED TECHNICAL SPECIFICATION PAGES (MARK UP)

(2 pages follow)

TABLE 3.3-2 (Continued)

ENGINEERED SAFETY FEATURES ACTUATION SYSTEM INSTRUMENTATION TURKEY POINT - UNITS 3 & 4 MINIMUM TOTAL NO. CHANNELS CHANNELS APPLICABLE FUNCTIONAL UNIT OF CHANNELS TO TRIP OPERABLE MODES ACTION

6. Auxiliary Feedwater### (Continued)
b. Stm. Gen. Water Level-- 3/steam 2/steam 2/steam 1, 2, 3 15 Low-Low generator generator generator in any steam generator
c. Safety Injection See Item 1. above for all Safety Injection initiating functions and requirements.
d. Bus Stripping 1/bus 1/bus 1/bus 1, 2, 3 23 23(a)
e. Trip of all Main Feed- 1/breaker (1/breaker) (1/breaker) 1, 2 23 23(b) 3/4 3-19 water Pumps Breakers /operating /operating pump pump
7. Loss of Power
a. 4.16 kV Busses A and B 2/bus 2/bus 2/bus 1, 2, 3, 4 18 (Loss of Voltage)

AMENDMENT NOS. 209 AND 203

b. 480 V Load Centers 2 per load 2 on any 2 per load 1, 2, 3, 4 18 3A, 3B, 3C, 3D and center load center center 4A, 4B, 4C, 4D Undervoltage Coincident with: See Item 1. above for all Safety Injection initiating functions and requirements.

Safety Injection

TABLE 3.3-2 (Continued)

TABLE NOTATION (Continued)

ACTION 18 - With the number of OPERABLE channels one less than the Total Number of Channels, STARTUP and/or POWER OPERATION may proceed provided the inoperable channel is placed in the tripped condition within 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br />. Both channels of any one load center may be taken out of service for up to 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> in order to perform surveillance testing per Specification 4.3.2.1.

ACTION 19 - With less than the Minimum Number of Channels OPERABLE, within 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> determine by observation of the associated permissive annunciator window(s) that the interlock is in its required state for the existing plant condition, or apply Specification 3.0.3.

ACTION 20 - With the number of OPERABLE channels one less than the Minimum Channels OPERABLE requirement, be in at least HOT STANDBY within 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> and in at least HOT SHUTDOWN within the following 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br />; however, one channel may be bypassed for up to 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> for surveillance testing per Specification 4.3.2.1 provided the other channel is OPERABLE.

ACTION 21 - With the number of OPERABLE channels one less than the Total Number of Channels, restore the inoperable channel to OPERABLE status within 48 hours5.555556e-4 days <br />0.0133 hours <br />7.936508e-5 weeks <br />1.8264e-5 months <br /> or declare the associated valve inoperable and take the ACTION required by Specification 3.7.1.5.

ACTION 22 - With the number of OPERABLE channels one less than the Minimum Channels OPERABLE requirement, be in at least HOT STANDBY within 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br />; however, one channel may be bypassed for up to 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> for surveillance testing per Specification 4.3.2.1 provided the other channel is OPERABLE.

ACTION 23 - With the number of OPERABLE channels one less than the Minimum Channels OPERABLE requirement, comply with Specification 3.0.3.

ACTION 24 - With the number of OPERABLE channels one less than the Minimum Channels OPERABLE requirement, within 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> isolate the control room Emergency Ventilation System and initiate operation of the Control Room Emergency Ventilation System in the recirculation mode.

ACTION 25 - With number of OPERABLE channels one less than the Total number of channels, STARTUP and/or POWER OPERATION may proceed provided the inoperable channel is placed in the tripped condition within 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br />. For subsequent required DIGITAL CHANNEL OPERATIONAL TESTS the inoperable channel may be placed in bypass status for up to 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br />.

With the number of OPERABLE channels one less than the Minimum Channels OPERABLE requirement:

(a) Restore the inoperable channel to OPERABLE status within 48 hours5.555556e-4 days <br />0.0133 hours <br />7.936508e-5 weeks <br />1.8264e-5 months <br /> or be in at least HOT STANDBY within the next 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> and in HOT SHUTDOWN within the following 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br />.

(b) Restore the inoperable channel to OPERABLE status within 48 hours5.555556e-4 days <br />0.0133 hours <br />7.936508e-5 weeks <br />1.8264e-5 months <br /> or be in at least HOT STANDBY within the next 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br />.

TURKEY POINT - UNITS 3 & 4 3/4 3-22 AMENDMENT NOS. 209 AND 203

Turkey Point Nuclear Plant L-2017-086 Docket Nos. 50-250 and 50-251 Attachment 2 ATTACHMENT 2 PROPOSED TECHNICAL SPECIFICATION PAGES (CLEAN COPY)

(2 pages follow)

TABLE 3.3-2 (Continued)

ENGINEERED SAFETY FEATURES ACTUATION SYSTEM INSTRUMENTATION TURKEY POINT - UNITS 3 & 4 MINIMUM TOTAL NO. CHANNELS CHANNELS APPLICABLE FUNCTIONAL UNIT OF CHANNELS TO TRIP OPERABLE MODES ACTION

6. Auxiliary Feedwater### (Continued)
b. Stm. Gen. Water Level-- 3/steam 2/steam 2/steam 1, 2, 3 15 Low-Low generator generator generator in any steam generator
c. Safety Injection See Item 1. above for all Safety Injection initiating functions and requirements.
d. Bus Stripping 1/bus 1/bus 1/bus 1, 2, 3 23(a)
e. Trip of all Main Feed- 1/breaker (1/breaker) (1/breaker) 1, 2 23(b) 3/4 3-19 water Pumps Breakers /operating /operating pump pump
7. Loss of Power
a. 4.16 kV Busses A and B 2/bus 2/bus 2/bus 1, 2, 3, 4 18 (Loss of Voltage)

AMENDMENT NOS. 209 AND 203

b. 480 V Load Centers 2 per load 2 on any 2 per load 1, 2, 3, 4 18 3A, 3B, 3C, 3D and center load center center 4A, 4B, 4C, 4D Undervoltage Coincident with: See Item 1. above for all Safety Injection initiating functions and requirements.

Safety Injection

TABLE 3.3-2 (Continued)

TABLE NOTATION (Continued)

ACTION 18 - With the number of OPERABLE channels one less than the Total Number of Channels, STARTUP and/or POWER OPERATION may proceed provided the inoperable channel is placed in the tripped condition within 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br />. Both channels of any one load center may be taken out of service for up to 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> in order to perform surveillance testing per Specification 4.3.2.1.

ACTION 19 - With less than the Minimum Number of Channels OPERABLE, within 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> determine by observation of the associated permissive annunciator window(s) that the interlock is in its required state for the existing plant condition, or apply Specification 3.0.3.

ACTION 20 - With the number of OPERABLE channels one less than the Minimum Channels OPERABLE requirement, be in at least HOT STANDBY within 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> and in at least HOT SHUTDOWN within the following 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br />; however, one channel may be bypassed for up to 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> for surveillance testing per Specification 4.3.2.1 provided the other channel is OPERABLE.

ACTION 21 - With the number of OPERABLE channels one less than the Total Number of Channels, restore the inoperable channel to OPERABLE status within 48 hours5.555556e-4 days <br />0.0133 hours <br />7.936508e-5 weeks <br />1.8264e-5 months <br /> or declare the associated valve inoperable and take the ACTION required by Specification 3.7.1.5.

ACTION 22 - With the number of OPERABLE channels one less than the Minimum Channels OPERABLE requirement, be in at least HOT STANDBY within 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br />; however, one channel may be bypassed for up to 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> for surveillance testing per Specification 4.3.2.1 provided the other channel is OPERABLE.

ACTION 23 - With the number of OPERABLE channels one less than the Minimum Channels OPERABLE requirement, (a) Restore the inoperable channel to OPERABLE status within 48 hours5.555556e-4 days <br />0.0133 hours <br />7.936508e-5 weeks <br />1.8264e-5 months <br /> or be in at least HOT STANDBY within the next 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> and in HOT SHUTDOWN within the following 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br />.

(b) Restore the inoperable channel to OPERABLE status within 48 hours5.555556e-4 days <br />0.0133 hours <br />7.936508e-5 weeks <br />1.8264e-5 months <br /> or be in at least HOT STANDBY within the next 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br />.

ACTION 24 - With the number of OPERABLE channels one less than the Minimum Channels OPERABLE requirement, within 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> isolate the control room Emergency Ventilation System and initiate operation of the Control Room Emergency Ventilation System in the recirculation mode.

ACTION 25 - With number of OPERABLE channels one less than the Total number of channels, STARTUP and/or POWER OPERATION may proceed provided the inoperable channel is placed in the tripped condition within 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br />. For subsequent required DIGITAL CHANNEL OPERATIONAL TESTS the inoperable channel may be placed in bypass status for up to 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br />.

TURKEY POINT - UNITS 3 & 4 3/4 3-22 AMENDMENT NOS. 209 AND 203

Turkey Point Nuclear Plant L-2017-086 Docket Nos. 50-250 and 50-251 Attachment 3 ATTACHMENT 3 PROPOSED TECHNICAL SPECIFICATION BASES PAGES (MARK UP)

(2 pages follow)

REVISION NO.: PROCEDURE TITLE: PAGE:

21 TECHNICAL SPECIFICATION BASES CONTROL PROGRAM 74 of 210 PROCEDURE NO.:

0-ADM-536 TURKEY POINT PLANT ATTACHMENT 2 Technical Specification Bases (Page 57 of 193) 3/4.3.1 & 3/4.3.2 (Continued)

Item 5 of Table 3.3-2 requires that two trains of feedwater isolation actuation logic and relays be OPERABLE in MODES 1, 2 and 3.

Operability requires:

x Isolation of both the normal feedwater branch and the bypass branch lines through automatic closure of the main feedwater and main feedwater bypass flow control valves (FCV) or automatic closure of the feedwater isolation valves (FIV) during a safety injection actuation signal or high-high steam generator water level signal, and x Two independent trains of Automatic Actuation Logic and actuation relays.

In the event that maintenance and/or in-service testing is required on a feedwater regulating valve in Mode 1, 2 and 3, the above requirements can be met by closing the isolation valve upstream of the affected feedwater regulating valve, administratively controlling the position of the isolation valve, and controlling feedwater flow with an OPERABLE feedwater regulating valve (main or bypass).

When complying with ACTION 23 for Table 3.3-2 Functional Unit 6.d.

the plant does NOT enter Limiting Condition for Operation (LCO) 3.0.3.

ACTION 23, in the wording "comply with Specification 3.0.3", requires actions to be taken that are the same as those described in LCO 3.0.3, without any requirement to enter LCO 3.0.3. ACTION 23 has designated conditions under which the specific prescribed ACTIONS of DELETE within 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> action shall be initiated to place the unit, as applicable, in:

a. At least HOT STANDBY within the next 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br />,
b. At least HOT SHUTDOWN within the following 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br />, and
c. At least COLD SHUTDOWN within the subsequent 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> These are required when the designated conditions of the number of OPERABLE channels one less than the Minimum Channels OPERABLE, are NOT met.

REVISION NO.: PROCEDURE TITLE: PAGE:

21 TECHNICAL SPECIFICATION BASES CONTROL PROGRAM 75 of 210 PROCEDURE NO.:

0-ADM-536 TURKEY POINT PLANT ATTACHMENT 2 Technical Specification Bases (Page 58 of 193) 3/4.3.1 & 3/4.3.2 (Continued)

The definition of ACTION in Technical Specifications Section 1.1 is that part of a Technical Specification which prescribes remedial measures required under designated conditions. The TS Bases for 3.0.3 describe the fact that 3.0.3 establishes the shutdown ACTION requirements that DELETE must be implemented when a Limiting Condition for Operation is NOT met and the condition is NOT specifically addressed by the associated ACTION requirements. In the case of ACTION statement 23, shutdown ACTION requirements are specifically described in the ACTION statement as inferred in the wording "comply with Specification 3.0.3."

NO reporting is necessary under ACTION 23 until a shutdown has begun.

For Table 3.3-2 Functional Unit (FU) 6.d, ACTION 23(a) establishes that if a FU 6.d channel is inoperable, 48 hours5.555556e-4 days <br />0.0133 hours <br />7.936508e-5 weeks <br />1.8264e-5 months <br /> are allowed to return the channel to an OPERABLE status. If the FU 6.d channel cannot be returned to an OPERBLE status within 48 hours5.555556e-4 days <br />0.0133 hours <br />7.936508e-5 weeks <br />1.8264e-5 months <br />, then the next 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> are allowed to place the Unit in MODE 3 and an additional 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> are allowed to place the Unit in MODE 4. The allowed Completion Time of 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> is reasonable, based on operating experience, to reach MODE 4 from full power conditions in an orderly manner and without challenging Unit systems. In MODE 4, the Unit does not have analyzed transients or conditions that require the explicit use of the protection ADD function noted above.

For Table 3.3-2 Functional Unit (FU) 6.e, ACTION 23(b) establishes that if a FU 6.e channel is inoperable, 48 hours5.555556e-4 days <br />0.0133 hours <br />7.936508e-5 weeks <br />1.8264e-5 months <br /> are allowed to return the channel to an OPERABLE status. If the FU 6.e channel cannot be returned to an OPERBLE status within 48 hours5.555556e-4 days <br />0.0133 hours <br />7.936508e-5 weeks <br />1.8264e-5 months <br />, then the next 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> are allowed to place the Unit in MODE 3. The allowed Completion Time of 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> is reasonable, based on operating experience, to reach MODE 3 from full power conditions in an orderly manner and without challenging Unit systems. In MODE 3, the Unit does not have analyzed transients or conditions that require the explicit use of the protection functions noted above.

Retrieved from "https://kanterella.com/w/index.php?title=L-2017-086,_Response_to_Request_for_Additional_Information_Regarding_License_Amendment_Request_250,_Modify_Technical_Specifications_for_Auxiliary_Feedwater_Actuation_on_Bus_Stripping_and_on_Trip_of_All_Main_Feedwater_Pump_Breakers&oldid=2439133"