ML20210P564
| ML20210P564 | |
| Person / Time | |
|---|---|
| Site: | Sequoyah  |
| Issue date: | 02/03/1987 |
| From: | Youngblood B Office of Nuclear Reactor Regulation |
| To: | |
| Shared Package | |
| ML20210P570 | List: |
| References | |
| NUDOCS 8702130418 | |
| Download: ML20210P564 (19) | |
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UNITED STATES
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NUCLEAR REGULATORY COMMISSION 5y* \\ ".
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TEf:NESSEE VALLEY AUTHORITY DOCKET NO. 50-327_
SE0VOYAH NUCLEAR PLANT, UNIT 1 APENDMENT TO FACILITY OPERATING LICENSE Amendment No. 52 License No. DFF-77 1.
The Nuclear Regulatory Concission (the Concission) has found that:
A.
The application for amendment to the Sequoyah Nuclear Plant, Unit 1 (the facility) Facility Operating License No. DPR-77 filed by the Tennessee Valley Authority (licensee), dated February 1,1985, and supplemented August 8, 1986, complies with the standards and require-nents of the Atomic Energy Act of 1954, as amended (the Act) and the Concission's regulations as set forth in 10 CFR Chapter I; B.
The facility will operate in confonnity with the' license, as amended, the provisions of the Act, and the rules and regulations of the Commission; C.
There is reasonable assurance (i) that the activities authorized by this amendment can be conducted without endangering the health and safety of the public, and (ii) that such activities will be conducted in compliance with the Consnission's regulations; D.
The issuance of this amendment will not be inimical to the connon defense and security or to the health and safety of the public; and E.
The issuance of this amendnent is in accordance with 10 CFR Part 51 of the Concission's regulations and all applicable requireraents have beer satisfied.
2.
Accordingly, the license is hereby amended by page changes to the Appendix A Technical Specifications as indicated in the attachment to this license amendment, and paragraph 2.C.(2) of Facility Operating License No. OPR-77 is hereby amended to read as follows:
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- (2) Techni_ cal Specifications The Technical Specifications contained in Appendix A, as revised through Amendment No.44.are hereby incorporated into the license. The licensee shall operate the facility in accordance with the Technical Specifications.
3.
This license amendment is effective as. of its date of issuance.
FOR THE NUCLEAR REGULATORY COMMISSION B. J. Youngblood, Director PWR Project Directorate #4 Division of PWR Licensing-A Attachment Appendix A Technical Specification Changes Date of Issuance: February 3, 1987 Le
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,o ATTACHMENT TO LICENSE'APEf4DMENT NO.'52 FACILITY OPERATING LICENSE NO. DPR-77 DOCKET NO. 50-327 Replace the followin5 pages of the Appendix "A" Technical Specifications with the enclosed pages. The revised pages are identified by Amendment nur..ber ar.d contain vertical lines indicating the areas of char.ge.
Arrended Pages 3/4 8-3 3/4 8-5 3/4 8-6 3/4 8-7 3/4 8-7b 6-22 6-22a a
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ELECTRICAL POWER SYSTEMS SURVEILLANCE REQUIREMENTS (Continued) 4.
Verifying the diesel starts from ambient condition and accelerates to at least 900 rpm in less than or equal to 10 seconds.
The generator voltage and frequency shall be 6900 1 690 volts and 60 1 1.2 Hz within 10* seconds after the l
start signal.
The diesel generator shall be started for this test by using one of the following signals with startup on each signal verified at least once per 124 days:
a)
- Manual, b)
Simulated loss of offsite power by itself.
c)
An ESF actuation test signal by itself.
5.
Verifying the generator is synchronized, loaded to greater than or equal to 4000 kw in less than or equal to 60 seconds *, and l
operates for greater than or equal to 60 minutes, and 6.
Verifying the diesel generator is aligned to provide standby power to the associated shutdown boards.
b.
At least once per 31 days and after each operation of the diesel where the period of operation was greater than or equal to I hour by checking for and removing accumulated water from the engine-mounted fuel tanks.
c.
At least once per 92 days and from new fuel oil prior to addition to the 7-day tanks by verifying that a sample obtained in accordance with ASTM-D270-1975 has a water and sediment content of less than er equal to.05 volume percent and a kinematic viscosity (a 100*F of greater than or equal to 1.8 but less than or equal to 5.8 centi-r stokes when tested in accordance with ASTM-0975-77, and an impurity level of less than 2 mg. of insolubles per 100 ml. when tested in accordance with ASTM-D2274-70.
d.
At least once per 18 months during shutdown by:
1.
Subjecting the diesel to an inspection in accordance with procedures prepared in conjunction with its manufacturer's recommendations for this class of standby service, 2.
Verifying the generator capability to reject a load of greater than or equal to 600 kw while maintaining voltage at 6900 + 690 volts and frequency at 60 + 1.2 Hz.
3.
Verifying the generator capability to reject a load of 4000 kw without tripping.
The generator voltage shall not exceed 7866 volts during and following the load rejection.
- The diesel generator start (10 sec) and load (60 sec) from standby conditions shall be performed at least once per 184 days in these surveillance tests.
All other diesel generator engine starts and loading for the purpose of this sur-vei11ance testing may be preceded by an engine idle start, followed by gradual acceleration to synchronous speed (900 rpm), synchronization, and graduel loading.
SEQUOYAH - UNIT 1 3/4 8-3 Amendment No. 52
ELECTRICAL POWER SYSTEMS SURVEILLANCE REQUIREMENTS (Continued)
Within 5 minutes after completing this 24 hour2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> test, perform Specification 4.8.1.1.2.d.4.
The generator voltage and fre-l quency shall be 6900 1 690 volts and 60 1 1.2 Hz within 10 seconds after the start signal; the steady state generator voltage and frequency shall be maintained within these limits during this test.
8.
Verifying that the auto-connected loads to each diesel generator do not exceed the 2000 hour0.0231 days <br />0.556 hours <br />0.00331 weeks <br />7.61e-4 months <br /> rating of 4000 kW.
9.
Verifying the diesel generator's capability to:
a)
Synchronize with the offsite power source while the geners-tor is loaded with its emergency loads upon a simulaceo restoration of offsite power.
b)
Transfer its loads to the offsite power scurce, and c)
Be restored to its shutdown status.
10.
Verifying that the automatic load sequence timers are OPERABLE with the setpoint for each sequence timer within + 5 percent of its design setpoint.
11.
Verifying that the following diesel generator lockout features prevent diesel generator starting only when required:
a)
Engine overspeed b) 86 GA lockout relay e.
At least once per 10 years or after any modifications which could affect diesel generator interdependence by starting the diesel generators simultaneously, during shutdown, and verifying that the diesel generators accelerate to at least 900 rpm in less than or i.
equal to 10 seconds.
f.
At least once per 10 years
- by:
1.
Draining each fuel oil storage tank, removing the accumulated sediment and cleaning the tank using a sodium hypoclorite solution, and 2.
Performing a pressure test of those portions of the diesel fuel oil system design to Section III, subsection ND of tt.e ASME Code at a test pressure equal to 110 percent of the system design pressure.
- These requirements are waived for the initial surveillance.
SEQUOYAH - UNIT 1 3/4 8-5 Amendment No.
52
ELECTRICAL POWER SYSTEMS SURVEILLANCE REQUIREMENTS (Continued) 4.8.1.1.3 The 125-volt D.C. distribution panel,125-volt D.C. battery bank and associated charger for each diesel generator shall be demonstrated OPERABLE:
a.
At least once per 7 days by verifying:
1.
That the parameters in Table 4.8-la meet the Category A limits.
2.
That the total battery terminal voltage is greater than or equal to 124-volts on float charge.
b.
At least once per 92 days by:
1.
Verifying that the parameters in Table 4.8-la meet the Category B limits, 2.
Verifying there is no visible corrosion at either terminals or connectors, or the cell to terminal connection resistance of these items is less than 150 x 10 8 ohms, and 3.
Verifying that the average electrolyte temperature of 6 connected cells is above 60 F.
c.
At least once per 18 months by verifying that:
1.
The cells, cell plates and battery racks show no visual indication of physical damage or abnormal deterioration.
2.
The battery to battery and terminal connections are clean, tight and coated with anti-corrosion material.
3.
The resistance of each cell to terminal connection is less than or equal to 150 x 10 8 ohms.
4.8.1.1.4 Reports - All diesel generator failures, valid or non-valid, shall be reported to the Commission pursuant to Specification 6.9.2.2.
f SEQUOYAH - UNIT 1 3/4 8-6 Amendment No. 52
TABLE 4.8-1 DIESEL GENERATOR RELIABILITY No. of Failures in No. of Failures in last 20 valid tests
- last 100 valid tests
- Reliability Actions Test at least once per 31 days
<1 Test at least once per 7 days **
>2 3
6 Within 30 days prepare a report for NRC audit, in accordance with Section 6.9.2.2.
5 11 Declare the diesel generator inoperable and perform a re-qualification test for the affected diesel generator pursuant to the attachment to this table.
- Criteria for determining number of failures and number of valid tests shall be in accordance with Regulatory Position C.2.e of Regulatory Guide 1.108, Revision 1, August 1977, where the number of tests and failures are determined on a per diesel generator unit basis.
For the purposes of this test schedule only valid tests conducted after the Operating License issuance date shall be included in the computation of the "last 20 valid tests." Entry into this test schedule shall be made at the 31-day test frequency.
- This test frequency shall be maintained until seven consecutive failure free demands have been performed and the number of failures in the last 20 valid demands has been reduced to one or less.
SEQUOYAH - UNIT 1 3/4 8-7 Amendment No. 52
ATTACHMENT TO TABLE 4.8-1 DIESEL GENERATOR REQUALIFICATION PROGRAM (1) Perform seven consecutive successful demands without a failure within 30 days of diesel generator being restored to operable status and 14 consecutive successful demands without a failure within 75 days of diesel generator being restored to operable status.
(2) If a failure occurs during the first seven tests in the requalification test program, perform seven successful demands without an additional failure within 30 days of diesel generator of being restored to operable status and 14 consecutive successful demands without a failure within 75 days of being restored to operable status.
(3) If a failure occurs during the second seven tests (tests 8 through
- 14) of (1) above, perform 14 consecutive successful demands without an additional failure within 75 days of the failure which occurred during the requalification testing.
(4) Following the second failure during the requalification test program, 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 COLD SHUTOOWN within the following 30 hours3.472222e-4 days <br />0.00833 hours <br />4.960317e-5 weeks <br />1.1415e-5 months <br />.
(5) During requalification testing the diesel generator should not be tested more frequently than at 24-hour intervals.
After a diesel generator has been successfully requalified, subsequent repeated requalification tests will not be required for that diesel generator under the following conditions:
(a) The number of failures in the last 20 valid demands is less than 5.
(b) The number of failures in the last 100 valid demands is less than 11.
(c) In the event that following successful requalification of a diesel generator, the number of failures is still in excess of the remedial action criteria (a and/or b above) the following exception will be allowed until the diesel generator is no longer in violation of the remedial action criteria (a and/or b above).
Requalification testing will not be required provided that after each valid demand the number of failures in the last 20 and/or 100 valid demands has not increased. Once the diesel generator is no longer in violation of the remedial action criteria above the provisions of those criteria alone will prevail.
SEQUOYAH - UNIT 1 3/4 8-7b Amendment No. 52
ADMINISTRATIVE CONTROLS RADIAL PEAKING FACTOR LIMIT REPORT 6.9.1.14 The W(z) function for normal operation shall be provided to the Direc-tor, Nuclear Reactor Regulation, Attention, Chief of the Core Performance Branch, U.S. Nuclear Regulatory Commission, Washington, D.C. 20555 at least 60 days prior to cycle initial criticality.
In the event that these values would be submitted at some other time during core life, it will be submitted 60 days prior to the date the values would become effective unless otherwise exempted by the Commission.
Any information needed to suport W(z) will be by request from the NRC and need not be included in this report.
SPECIAL REPORTS 6.9.2.1 Special reports shall be submitted to the Director of the Office of l
Inspection and Enforcement Regional Office within the time period specified for each report.
6.9.2.2 Diesel Generator Reliability Imprcvement Program As a minimum the Reliability Improvement Program report for NRC audit, required by LCO 3.8.1.1, Table 4.8-1, shall include:
(a) a summary of all tests (valid and invalid) that occurred within the time period over which the last 20/100 valid tests were performed (b) analysis of failures and determination of root causes of failures (c) evaluation of each of the recommendations of NUREG/CR-0660, " Enhancement of Onsite Emergency Diesel Generator Reliability in Operating Reactors,"
with respect to their application to the Plant (d) identification of all actions taken or to be taken to 1) correct the root causes of failures defined in b) above and 2) achieve a general improvement of diesel generator reliability
'(e) the schedule for implementation of each action from d) above (f) an assessment of the existing reliability of electric power to engineered-safety-feature equipment A supplemental report shall be prepared within 30 days after each subsequent failure during a valid demand for so long as the affected diesel generator unit continues to violate the criteria (3/20 or 6/100) for the reliability improvement program remedial action. The supplemental report need only update the failure / demand history for the affected diesel generator unit since the last report for that diesel generator.
The supplemental report shall also present an analysis of the failure (s) with a root cause determination, if possible, and shall delineate any further procedural, hardware or operational changes to be incorporated into the diesel generator improvement program and the schedule for implementation of those changes.
SEQUOYAH - UNIT 1 6-22 Amendment No. 52
ADMINISTRATIVE CONTROLS Diesel Generator Reliability Improvement Program (Continued)
In addition to the above, submit a yearly data report on the diesel generator reliability.
6.10 RECORD RETENTION In addition to the applicable record retention requirements of Title 10, Code of Federal Regulations, the following records shall be retained for at least the minimum period indicated.
6.10.1 The following records shall be retained for at least five years:
a.
Records and logs of unit operation covering time interval at each power level.
b.
Records and logs of principal maintenance activities, inspections, repair and replacement of principal items of equipment related to nuclear safety.
c.
All REPORTABLE EVENTS submitted to the Commission.
d.
Records of surveillance activities, inspections and calibrations required by these Technical Specifications.
e.
Records of changes made to the procedures required by Specification 6.8.1 and 6.8.4.
f.
Records of radioactive shipments.
g.
Records of sealed source and fission detector leak tests and results.
h.
Records of annual physical inventory of' all sealed source material of record.
SEQUOYAH - UNIT 1 6-22a Amendment No. 52
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UNITED STATES
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_ DOCKET NO. 50-328 SE000VAH NUCLEAR M T, UNIT 2 AMENDMENT TO FACILITY OPERATING LICENSE Amendment No. 44 License No. DPP-79 1.
The Nuclear Regulatory Consission (the Commission) has found that:
A.
The application for aniendment to the Sequoyah Nuclear Plant, Unit 2 (the facility) Facility Operating License No. DPR-79 filed by the Tennessee Valley Authority (licensee), dated February 1,1985, and suppleniented August 8,1986, conplies with the standards and require-nents of the Aton.ic Energy Act of 1954, as amended (the Act) and. the Conunission's regulations as set forth in 10 CFR Chapter I; B.
The facility will operate in conformity with the licente, as amended, the provisions of the Act, and the ruler and regulations of the Conraission; C.
There is reasonable assurance (1) that the activities authorized by this amendment can be conducted without endangering the health and safety of the public, and (ii) that such activities will be conducted in compliance with the Conunission's regulations; D.
The issuance of this amendnent will not be inimical to the common defense and security or to the health and safety of the ccblic; and E.
The issuance of this amendment is in accordance with 10 CFR Part 51 of the Coninission's regulations and all applicable requirements have beer.
satisfied.
2.
Accordingly, the license is hereby amended by page changes to the Acpendi> A Technical Specifications as indicated in the attachnient to this license amendment, and paragraph 2.C.(2) of Facility Operating License No. CPR-79 is hereby an' ended to read as follows:
' (2) Technical Specifications The Technical Specifications contained in Appendix A, as revised through kendment No.52 are hereby incorporated into the license. The licensee shall operate the facility in accordance with the Technical Specifications.
3.
This license amendment is effective as of its date of issuance.
FOR THE NUCLEAR REGULATORY COMMISSION B. J. Youngblood, Director PWR Project Directorate #4-Division of PWR Licensing-A Attachment" Appendix A Technical Specification Changes Date of Issuance:
February 3, 1987 4
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ATTACHPEt!T TO LICEr.SE AMENDMENT NO. 44 FACILITY OPERATING LICENSE fiO. DPR-79
~ DOCKET NO. 50-328 Replace the following pages of the Accendix "A" Technical Specificatior's with the enclosed paces.
The revised pages are identified by Anendrent number and contain vertical lines indicating the areas of charge.
)
Acended Page 3/4 8-3 3/4 8-7 3/4 8-8 3/4 8-8b 6-27 6-27a 4
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1 2
ELECTRICAL POWER SYSTEMS SURVEkLLANCEREQUIREMENTS(Continued) 4.
Verifying the diesel starts from ambient condition and accelerates to at least 900 rpm in less than or equal to 10 seconds.
The generator voltage and frequency shall be 6900 1 690 volts and 60 1 1.2 Hz within 10* seconds after the l
start signal.
The diesel generator shall be started for this test by using one of the following signals with startup on each signal verified at least once per 124 days:
a)
- Manual, b)
Simulated loss of offsite power by itself.
c)
An ESF actuation test signal by itself.
5.
Verifying the generator is synchronized, loaded to greater than or equal to 4000 kw in less than or equal to 60 seconds *, and l
operates for greater than or equal to 60 minutes, and 6.
Verifying the diesel generator is aligned to provide standby power to the associated shutdown boards.
b.
At least once per 31 days and after each operation of the diesel where the period of operation was greater than or equal to I hour by checking for and removing accumulated water from the engine-mounted fuel tanks.
c.
At least once per 92 days and from new fuel oil prior to addition to the 7-day tanks by verifying that a sample obtained in accordance with ASTM-D270-1975 has a water and sediment content of less than or equal to.05 volume percent and a kinematic viscosity @ 100 F of greater than or equal to 1.8 but less than or equal to 5.8 centi-stokes when tested in accordance with ASTM-0975-77, and an impurity level of less than 2 mg. of insolubles per 100 ml. when tested in accordance with ASTM-D2274-70.
d.
At least once per 18 months during shutdown by:
1.
Subjecting the diesel to an inspection in accordance with procedures prepared in conjunction with its manufacturer's recommendations for this class of standby service, 4
2.
Verifying the generator capability to reject a load of greater than or equal to 600 kw while maintaining voltage at 6900 1 690 volts and frequency at 60 1 1.2 Hz.
3.
Verifying the generator capability to reject a load of 4000 kw without tripping.
The generator voltage shall not exceed 7866 volts during and following the load rejection.
- The diesel generator start (10 sec) and load (60 sec) frein standby conditions shall be performed at least once per 184 days in these surveillance tests.
All i
other diesel generator engine starts and loading for the purpose of this sur-
<eillance testing may be preceded by an engine idle start, followed by gradual acceleration to synchronous speed (900 rpm), synchronization, and gradual loading.
SEQUOYAH - UNIT 2 3/4 8-3 Amendment No.
44
-t ELECTRICAL POWER SYSTEMS SURVEILLANCE REQUIREMENTS (Continued) 4.8.1.1.4 Reports - All diesel generator failures, valid or non valid, shall be reported to the Commission pursuant to Specification 6.9.2.2.
SEQUOYAH - UNIT 2 3/4 8-7 Amendment No. 44
TABLE 4.8-1 DIESEL GENERATOR RELIABILITY No. of Failures in No. of Failures in last 20 valid tests
- last 100 valid tests
- Reliability Actions Test at least once per 31 days
<1 Test at least once per 7 days **
>2 3
6 Within 30. days prepare a report for NRC audit, in accordance with Section 6.9.2.2.
5 11 Declare the diesel generator inoperable and perform a re-qualification test for the affected diesel generator pursuant to the attachment to this table.
- Criteria for determining number of failures and number of valid tests shall be in accordance with Regulatory Position C.2.e of Regulatory Guide 1.108, Revision 1, August 1977, where the number of tests and failures are determined on a per diesel generator unit basis.
For the purposes of this test schedule only valid tests conducted after the Operating License issuance date shall
~
be included in the computation of the "last 20 valid tests." Entry into this test schedule shall be made at the 31-day test frequency.
- This test frequency shall be maintained until seven consecutive failure free demands have been performed and the number of failures in the last 20 valid demands has been reduced to one or less.
SEQUOYAH - UNIT 2 3/4 8-8 Amendment No. 44
l*
r ATTACHMENT TO TABLE 4.8-1 DIESEL GENERATOR REQUALIFICATION PROGRAM (1) Perform seven consecutive successful demands without a failure within-30 days of diesel generator being restored to operable status and 14 consecutive successful demands without a failure within 75 days of diesel generator being restored to operable status.
(2)
If a failure occurs during the first seven tests in the requalification test program, perform seven successful demands without an additional failure within 30 days of diesel generator of being restored to operable status and 14 consecutive successful demands without a failure within-75 days of being restored to operable status.
(3) If a failure occurs during the second seven tests (tests 8 through
- 14) of (1) above, perform 14 consecutive successful demands without an additional failure within 75 days of the failure which occurred during the requalification testing.
(4) _Following the second failure during the requalification test program, be in at least HOT STAN08Y within the next 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> and 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 />.
(5) During requalification testing the diesel generator should not be tested more frequently than at 24-hour intervals.
After a diesel generator has been successfully requalified, subsequent repeated requalification tests will not be required for that diesel generator under the following conditions:
(a) The number of failures in the last 20 valid demands is less than 5.
(b) The number of failures in the last 100 valid demands is less than 11.
(c) In the event that following successful requalification of a diesel generator, the number of failurts.is still in excess of the remedial action criteria (a and/or b above) the following exception will be allowed until the diesel generator is no lo:iger in violation of the remedial action criteria (a and/or b above).
Requalification te. ting will not be required provided that after each valid demand the number of failures in the last 20 and/or 100 valid demands has not increased. Once the diesel generator is no longer in violation of the remedial action criteria above the provisions of those criteria alone will prevail.
SEQUOYAH - UNIT 2 3/4 8-8b Amendment No. 44
F ADMINISTRATIVE CONTROLS RADIAL PEAKING FACTOR LIMIT REPORT 6.9.1.14 The W(z) function for normal operation shall be provided to the Direc-tor, Nuclear Reactor Regulation, Attention, Chief of the Core Performance Branch, U.S. Nuclear Regulatory Commission, Washington, D.C. 20555 at least 60 days prior to cycle initial criticality.
In the event that these values would be submitted at some other time during core life, it will be submitted 60 days prior to the date the values would become effective unless otherwise exempted by the Commission.
Any information needed to suport W(z) will be by request from the NRC and need not be included in this report.
SPECIAL REPORTS 6.9.2.1 Special reports shall be submitted to the Director of the Office of l
Inspection and Enforcement Regional Office within the time period specified for each report, 6.9.2.2 Diesel Generator Reliability Improvement Program As a minimum the Reliability Improvement Program report for NRC audit, required by LCO 3.8.1.1, Table 4.8-1, shall include:
(a) a summary of all tests (valid and invalid) that occurred within the time period over which the last 20/100 valid tests were performed (b) analysis of failures and determination of root causes of failures (c) evaluation of each of the recommendations of NUREG/CR-0660, " Enhancement of Onsite Emergency Diesel Generator Reliability in Operating Reactors,"
with respect to their application to the Plant (d) identification of all actions taken or to be taken to 1) correct the root causes of failures defined in b) above and 2) achieve a general improvement of diesel generator reliability (e) the schedule for implementation of each action from d) above (f) an assessment of the existing reliability of electric power to engineered-safety-feature equipment A supplemental report shall be prepared within 30 days after each subsequent failure during a valid demand for so long as the affected diesel generator unit continues to violate the criteria (3/20 or 6/100) for the reliability improvement program remedial action.
The supplemental aeport need only update the failure / demand history for the affected diesel generator unit since the last report for that diesel generator.
The supplemental report shall also present an analysis of the failure (s) with a root cause determination, if possible, and shall delineate any further procedural, hardware or operational changes to be incorporated into the diesel generator improvement program and the schedule for implementation of those changes.
SEQUOYAH - UNIT 2 6-27 Amendment No.
44
f ADMINISTRATIVE CONTROLS Diesel Generator Reliability Improvement Program (Continued)
In addition to the above, submit a yearly data report on the diesel generator reliability.
6.10 RECORD RETENTION In addition to the applicable record retention requirements of Title 10, Code of Federal Regulations, the following records shall be retained for at least the minimum period indicated.
6.10.1 The following records shall be retained for at least five years:
a.
Records and logs of unit operation covering time interval at each power level, b.
Records and logs of principal maintenance activities, inspections, repair and replacement of principal items of equipment related to nuclear safety.
c.
All REPORTABLE EVENTS submitted to the Commission.
d.
Records of surveillance activities, irspections and calibrations required by these Technical Specifications.
e.
Records of ceanges made to the procedures required by Specification 6.8.1 and 6.8 4.
f.
Records of radioactive shipments, g.
Records of seale1 source and fission detector leak tests and results.
h.
Records of annual physical inventory of all sealed source material of record.
SEQUOYAH - UNIT 2 6-27a Amendment No.
44