ML20082K596
| ML20082K596 | |
| Person / Time | |
|---|---|
| Site: | Brunswick  |
| Issue date: | 08/22/1991 |
| From: | Starkey R CAROLINA POWER & LIGHT CO. |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| Shared Package | |
| ML20082K601 | List: |
| References | |
| NLS-91-207, TSC-91TSB14, NUDOCS 9108300140 | |
| Download: ML20082K596 (22) | |
Text
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s b-CaroHna Power & Ught Company P. o IDI29 h tN 28461
. August 22,1991 SERIAL: NLS 91207 R US$
BglAR 10 CFR 50.90 n
- Brunswick Nuclear Pro).ct TSC 91TSB14 United States Nuclear Regulatory Commission ATTENTION: Document Control Desk -
Washington, DC 20555 BRUNSWICK STEAM ELECTRIC PLANT, UNIT NO.1 DOCKET NO. 50-325/ LICENSE NO. DPR-71 REQUEST FOR LICENSE AMENDMENT ONE TIME EXTENSION OF ALLOWED OUT-OF-SERVICE TIME FOR DIESEL GENERATORS NUMBER 3 & 4 - TECHNICAL SPECIFICATION 3.8.1.1, ACTIONS b.3, c.3, & e.3 Gentlemen:
~1n accudance with the Code of Federal Regulations Title 10, Parts 50.90 and 2.101, Carolina Power &
. Light Company (CP&L) hereby requests a revision to the Technical Specifications for the Brunswick Steam Electric Plant (BSEP), Unit 1.
Technical Specification 3.8.1.1 requires four operable diesel generators with either unit in Operational Condition 1,2, or 3, or two diesel generators, one of which is associated with each unit when in i Operational Condition 4 or 5, Technical Specification 3.8.1,1, Actions b.3, c.3, and e.3 require an inoperable diesel generator to be restored to operable status within 7 days or for the unit to be in Hot Shutdown within the next 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> and Cold Shutdown within the following 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />. The proposed
. amendment allows a one-time-only extension of the 7 day allowed out-of service time (AOT) for one InoperableLdiesel generator for each of Diesel Generators Number 3 and 4, to a 14 day AOT for one Inoperable diesel generator for each of Diesel Generators Number 3 and 4 during the upcoming Unit 2 refueling outage.
- Carolina Power & Light Company plans to perform _ extensive maintenance work on Diesel Generators Number 3 and 4 during the Unit 2 Refueling Outage No. 9 currently scheduled to begin in September 1991. Issuance of the proposed amendment is necessary in order to allow sufficient time for
- completion of these maintenance activities for Diesel Generators Number 3 and 4. provides a detailed description of the proposed changes and the basis for the changes. details the basis for the Company's determination that the proposed changes do not involve
- a significant hazards consideration. provides the basis for the Company's determination that the proposed changes meet the eligibility criteria for categorical exclusion from performing an environmental assessment per 10 CFR 51.22(c)(9). provides a description of the maintenance activities planned for Diesel Generators Number 3 and 4 during the Unit 2 Refueling Outage No. 9. provides the proposed Technical Specification pages for Unit 1.
'9108300140 910922 PDR-ADOCK 05000325 l\\\\\\
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In accordance with 10 CFR 50.9t(b), CP&L is providing the State of North Carolina with a copy of the proposed license amendment.
In order to allow time for procedure revision and orderiy incorporation into copies of the Technical Specifications CP&L requests that the proposed amandments, once approved by the NRC, be issued with an effective date to be no later than 30 days from tt.e issuance of the amendment.
Please refer any questions regarding this submittal to Mr. M. R. Oates at (919) 546{>0G3.
Yours very truly, 3
D 4
/
R. B. Starkey, Jr.
RBS/JCP (dgico14.wpf)
Enclosures:
1.
Basis for Change Request 2.
10 CFR 50.92 Evaluation 3.
Environmental Considerations 4.
Description of Maintenance Activities for DG #3 & DG #4 5.
Technical Specification Pages - Unit 1 cc:
Mr. Dayne H. Brown Mr. E D. Ebneter Mr. N. B. Lo.
Mr. R. L Prevatte R. B. Starkey, Jr, having been first duly sworn, did depose and say that the information contained herein is true and correct to the best of his information, knowledge and belief; and the sources of his information are officers, employees, contractors, and agents of Carolina Power & Light Company.
/vh?77'm hY)htM$e Ji Notary (Seal)
My commission expires: /[!-/'f'- 93
s Document Control Desk NLS-91-207 / Page 3 t,:c:
Mr. K J. Ahern (BNP)
Mr. J. R. Holder (BNP)
Mr. H. R. Banks Mr. M. A. Jones Mr. T.- A. Baxter, Esq.
Mr. A. M. Lucas Mr. J. M. Brown Mr. R. E. Lumsden Mr. R. K Buckles (LIS)
Mr. M. R. Oates Mr. S, H. Callis (BNP)
Mr. W. W. Simpson (BNP)
Mr. M. S. Calvert Mr. J. W. Spencer (BNP)
Mr. R. M. Coats Mr. R. S. Stancil Mr. C. W. Crawford Mr. R. B. Starkey, Jr. (BNP)
Mr. J. D. Heldt Mr. G. E. Vaughn Mr. M. D. Hill Mr. R. A. Watson Mr. W. G. Hindman (2)
File: BC/A4 File: B-X 0333.2 (91TSB14)
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<s ENCLOSURE 1 BRUNSWICK STEAM ELECTRIC PLANT, UNIT NO.1 DOCKET NO. 50 325/UCENSE NO. DPR 71 REQUEST FOR UCENSE AMENDMENT ONE TIME EXTENSION OF ALLOWED OUT OF SERVICE TIME FOR DIESEL GENERATORS NUMBER 3 & 4 TECHNICAL SPECIFICATION 3.8.1.1, ACTIONS b.3, c.3, & e.3 BASIS FOR CHANGE REQUEST Pronosed Chanac-For the Brunswick Stoa n Electric Plant, Unit 2 Refueling Outage No. 9, reviso Technical-Specification 3.0.1.1, Actions b.3, c.3, and o.3 to allow a one timo only extension of the allowed out of service times for Diosol Generators Number 3 and 4 from 7 days to 14 days.
Maldll.
Brunswick Unit 1 and Unit 2 woro designed and are operated with a shared configuration of the four diesel generators. Dlosol Gonorators Number 1,2,3, and 4 supply emergency busos E1, E2, E3, and E4, respectively. Emorgency busos Et and Ei are associated primarily with Unit 1, and emergency busos E3 and E4 primarily with Unit 2. ln addition, selected redundant loads, such as two residual heat removal pumps are normally suppfled by the opposito unit's omergency buses.
As required by General Design Critoria 17, the BSEP omorgency diosol generators have sufficient rodundancy to perform their safety function assuming a single failure, i.e., loss of one of the four diesel generators is assumed. This design basis is enforced through establishment of limiting conditions for
. operations in Technical Spocification 3.8.1.1. In order to moet the single failuro critoria, Technical Specification 3.8.1.1_ requires four operable diosol generators with either unit in Operational Condition 1, 2, or 3, or two diosol generators, one of which is associated with each unit when in Operational Condition 4 or 5. Technical Specification 3.8.1.1, Actions b.3, c.3, and e.3 require an inoperable diesel generator to be restored to operablo status within 7 days or for the unit to be in Hot Shutdown within the next 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> and Cold Shutdown within the following 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />. The proposed amendment allows a one timo-only ovtonsion of the 7 day allowed out of service time (AOT) for one inoperable diesel generator for Dloso! Generators Number 3 and 4, to a 14 day AOT for cne Inopere.ble diesel generator for each of Dlosol Generators Number 3 and 4 during the upcoming Unit 2 refueling outage.
Technical Specification 4.8.1.1.2.d.1 requires that each diesei generator shall be demonstrated operable at least once por 18 months during shutdown by subjecting the diosol to an Inspection in accordanco -
with proceduros prepared in conjunction with its manufacturor's recommendations for this class of standby servico. The purpose of the Technical Specification 4.8.1.1.2.d.1 required inspection is to ensure that tho diosol generators aro functioning properly and to inspect for any potential problems.
This Is accomp"shed via a partial tear down of the diesel generator, in accordance with BSEP Plant Proceduro OMST-DG500 ' Emergency Diosol Generators inspection,* which will bo pedormod for Diesel Gonorators Number 3 and 4 during the 14 day AOT period requestod by this proposed amendment.
This procedure takes approximately six days to complete and is accomplished in five parts. The first l
part consists of a review of oil and water analyses, periodic tests, and work orders, completed during the j-survolllance Interval,' to determine if there are any particular areas developing trends that may require E1 1 l
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additional investigation. Parts 2 and 3 consist of inspections and preventive measures recommended by the diesel manufacturer plus any checks that may be advised based on Part 1 investigations. This work includes investigation of the camshaft bearings since the camshaft bearings have smaller clearances and closer tolerances than the main or rod bearings and would be more likely to show degradation. Part 4 consists of system checks and maintenance engine testing of the auxiliary lube oil pump, the motor driven fuel oil pump, the motor driven jacket water pump, and the engine to determine if the diesel generator is ready to be tested for operability Finally, Part 5 is a final operability test of the diesel while running.
Performance of OMST-DG500 will consume a major portion of the first 7 day AOT period permitted by Technical Specification 3.8.1.1, Actions b.3, c.3, and e.3. The remaining portion of the 14 day AOT requested by this proposed license amendment will allow the performance of other maintenance actMtles while the diesel generator is tom down. A 14 day AOT period instead of two 7 day AOT periods required by Technical Specification 3.8.1.1, Actions b.3, c.3, and e 3 will provide an extended work window for maintenance actMtles on the diesel generators, consequently resulting in less repetitive work evolutions (i.e., draining and filling system piping, heat up evolutions, etc.) and decreased tool and material staging and clean-up evolutions. Fewer start / load evolutions and fewer associated equipment challenges to Diesel Generators Number 3 and 4 would be required with a 14 day AOT. A 14 day AOT would decrease the time required by the operators to place and remove clearances and perform acceptance and surveillance testing A 14 day AOT would allow the performance of more comprehensive maintenance actMtles than could be performed under two 7 day AOT periods by creating a 12 day work window for each of Diesel Generators Number 3 and 4 versus the two five day work windows available with two 7 day AOTs. This will allow CP&L to not only perform the maintenance actMtles listed in Enclosure 4 but will also allow sufficient time to perform expanded inspections and maintenance on Diesel Generators Number 3 and 4. This increased scope will provide CP&L with a more comprehensive data base for determining the overall condition of the diesel generators.
CP&L plans to perform expanded inspections and maintenance work on Diesel Generators Number 3 and 4 during the Unit 2 Refueling Outage No. 9, currently scheduled to begin in September 1991. This expanded work has not been initiated during previous outages because these actMtles, in conjunction with specified Technical Specification surveillances, require a longer time period to complete than the 7 day maximum AOT which is allowed by Technical Specification 3.8.1.1, Actions b.3, c.3, and e.3.
Consequently, CP&L is requesting this one4ime-only extension of the AOT for one Inoperable diesel generator from 7 days to 14 days for each of Diesel Generators Number 3 and 4 respectively.
Current Unit 2 outage plans require Diesel Generators 3 and 4 to be removed from service under two 7 day LCOs each in order to perform the maintenance work planned during the outage and conform to the AOT requirements for one looperable diesel generator per Technical Specification 3.8.1.1, Actions b.3, c.3, and e.3. Diesel Generator 3 is currently scheduled to be out of service from October 2, 1991 through October 9,1991 and November 3,1991 through November 8,1991. Diesel Generator 4 is currently scheduled to be out of service from October 9,1991 through October 17,1991 and November 8,1991 through November 13,1991.
Issuance of the proposed amendment allowing an AOT of 14 days for one inoperable diesel generator for Diesel Generators Number 3 and 4 in lieu of two 7 day LCOs would increase by approximately two days the amount of time available to perform additional maintenance actMtles for each of Diesel Generators Number 3 and 4. This additional time would accommodate performance of maintenance actMtles which would be greater in number and scope than those currently planned during the Unit 2 Refueling Outage Number 9. A description of the maintenance actMties currently planned for Diesel Generators Number 3 and 4 during Refueling Outage No. 9 is provided in Enclosure 4 to this letter.
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%, Table 1, entitled ' Scheduled Outage Chronology for Diesel Generators Number 3 & 4,*
Indicates the maintenance activities as they are currently scheduled for a 7 day and a 5 day out of service period for Diesel Generator Number 3 and Diesel Generator Number 4 respectively., Table 2, entitled 'Other Maintenance items Not Cunently Scheduted for Diesel Generators Number 3 and 4' provides the current list of maintenance activities which are not scheduled to be performed for either Diesel Generators Number 3 or 4 during Refueling Outage Number 9. Allowance of a 14 day AOT for Dieso! Generators Number 3 and 4 would allow plant personnel additional time to complete many of the items listed. The majority of these itema may be accomplished due to the added efficiency associated with not having to remove and return to service each of Diesel Generators Number 3 and 4 twice. Should emergont work be identified during the course of performing the camshaft bearing inspections and the expanded inspections and maintenance activities associated with OMST-DG500, the collective maintenance ectivities will be worked on a prioritized basis.
Carolina Power & Light Company has determined that a one-time-extension of the 7 day AOT for one inoperable diesel generator will not have an unacceptable effect on the overall safety of the plant. The core damage probability for a 14 day AOT is no greater than that which exists for two 7 day AOTs.
Based on a probabilistic risk assessment (PRA) performed by CP&L, the increase in overall core damage probability is less than SE 7 over the second 7 day AOT period. This small increase is deemed acceptable. In fact, the potential exists to complete the maintenance work in two less days than currently scheduled days saved by eliminating the preparatory and restoration time which would be necessary with a second 7 day LCO). This would effectively reduce the total out of-service-time for Diesel Generators Number 3 and 4, thereby increasing diesel generator availability and decreasing core damage probability.
However, in t.a event that the full 14 days is required, the longer effective period available for the performance of maintenance in a 14 day AOT enhances the ability to maximize the amount of maintenance which can be accomplished during the outage, thereby increasing long term diesel generator reliability.
Also, since the requested license amendment affects only the AOT for an inoperable diesel generator and not the method by which the diesel generators or any other safety-related equipment performs its intended safety function, the proposed license amendment will not increase the consequences of an analyzed accident.
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4 Table 1 (below) represents the ECCS equipment that would remain out of service on Unit I during the extended AOT for each of Diesel Generators Number 3 and 4 requested by this proposed license amendment. Tables 2 through 9 list the ECCS equipment and other safety related equipment that would be available to safely shutdown Unit 1 during a worst case LOCA (i.e., recirculation loop suction line break, recirculation loop discharge line break) coincident with the loss of any one of the remaining three diesel gernrators respectively.
Table 1 DG #3 Out of-Service DG #4 Out-of-Service Unit 1 Equipment Losses Unit 1 Equipment Losses (Resulting Unavailable ECCS Equipment)
(Resulting Unavailable ECCS Equipment) 1 A LPCI Pump 1B LPCI Pump LPCI Injection Valve A Loop LPCI Injection Valve B Loop q
Table 2 Unit 1 ECCS Equipment Available if DG #1 Falls With the Below Listed Diesels Out of Service DG #3 Out of Service DG #4 Out of Service Recirc Suction Line Break 1B CS Pump & Flow Path 1B CS Pump & Flow Path 1B & 1D LPCI Pumps &
1 A LPCI Pump & Flow Path Flow Path Recirc Discharge Line Break 1B CS Pump & Flow Path 18 CS Pump & Flow Path Table 3 Other Unit.1 Safety Related Equipment Available if DG #1 Falls
-With the Below Listed Diesels Out of Service DG #3 Out of Service DG #4 Out of Service Recirc Suction or Discharge 1B Nuc Service Water Pump &
18 Nuc Service Water Pump &
Line Break Flow Path Flow Path 1B & 1D RHR Service Water 1D RHR Service Water Pump &
. Pumps & Flow Path Flow Path l
Table 4 l:
DG #3 Out of Service DG #4 Out of Service Rectre Suction Line Break' 1 A CS Pump & Flow Path 1 A CS Pump & Flow Path 1B LPCI Pump & Flow Path
-1 A & 1C LPCI Pumps &
Flow Path
- Rectre Discharge Line Break 1 A CS Pump & Flow Path 1 A CS Pump & Flow Path El-4
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Table 5 Other Unit 1 Safety Related Equipment Available if DG #2 Falls With Below Listed Diesels Out of Service DG #3 Out of Service DG #4 Out of Service Rectro Suction or Discharge 1 A Nuc Service Water Pump &
1 A Nuc Service Water Pump &
Line Break Flow Path Flow Path 1C RHR Service Water Pump &
1 A & 1C RHR Service Water Flow Path Pumps & Flow Path Table 6 Unit 1 ECCS Equipment Available if DG #3 Falls With DG #4 Out of Service Recirc Suction Line Break
- 1 A & 1B CS Pumps & Flow Path Rectre Discharge Line Break 1 A & 1B CS Pumps & Flow Path Table 7 Other Unit 1 Safety Related Equipment Available if DG #3 Falls With DG #4 Out of Service
. Recirc Suction'or Discharge Une Break 1 A & 18 Nuc Service Water Pumps & Flow Path IC & 1D RHR Service Water Pumps & Flow Path Table 8 Unit 1 ECCS Equipment Available if DG # 4 Falls With DG # 3 Out of Service Recirc Suction Une Break-1 A & 1B CS Pumps & Flow Path Recirc Discharge Line Break 1 A & 1B CS Pumps & Flow Path Table 9 Other Unit 1 Safety Related Equipment Available if DG #4 Falls With DG #3 Out of Service Recirc Suction or Disenarge Line Break 1 A & 18 Nuc Service Water Pumps & Flow Path 10 & 1D RHR Service Water Pumps & Flow Path The above tables list the redundant ECCS and safety related equipment that is available to mitigate an accident. General Electric Document EAS-404688 " Relaxation of Safety System Parameters in the Brunswick Steam Electric Plant" indicates that the above described equipment can be used to safely shutdown Unit 1 under the conditions described above.
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The operability of this equipment is the basis for CP&L's confidence that Unit 1 can be safely shut down during the extended AOT period requested by this proposed license amendment. Carolina Power &
Light Company will take the following actions to minimize the effect of an accident in the unlikely event that one should occur during the extended AOT period:
1.
CP&L will conduct simulator training for all five Brunswick Plant shift operating crews prior to entering into the first 14 day AOT, This additional training will assure that operations personnel are cognizant of the appropriate measures required to utilize the above equipment to mitigate the consequences of an accident associated with Diesel Generators Number 3 and 4 being out of service for the requested period of tiene.
2.
Additionally, unless required by Technical Specifications, CP&L will avoid performing other testing or maintenance (i.e., transformer switchyard work) that would increase the likelihood of a plant transient during this period.
With regards to safe shutdown risk on Unit 2 (the shutdown unit) the following actions will be taken by CP&U 1,
Per current outage plan, Unit 2 will be in a shutdown status and defueled during this extended AOT period.
2.
Redundant equipment powered from the other emergency bus on Unit 2 will not be removed from service for discretionary maintenance in order to assure that at least one train of necessary safety related equipment is available.
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ENCLOSURE 2 BRUNSWICK STEAM ELECTRIC PLANT, UNIT NO.1 DOCKET NO. 50 325/UCENSE NO, DPR 71 REQUEST FOR LICENSE AMENDMENT ONE TIME EXTENSION OF ALLOWED OUT-OF-SERVICE TIME FOR DIESEL GENERATORS NUMBER 3 & 4 - TECHNICAL SPECIFICATION 48.1.1, ACTIONS b.3, c.3, & e.3 i
10 CFR 50 92 EVALUATION The Commission has provided standards in 10 CFR 50.92(c) for determining whether a significant hazards consideration exists. A proposed amendment to an operating license for a facility involves no significant hazards conwderation if operation of the facility in accordance with the proposed amendment would not: (1) involve a significant increase in the probability or consequences of an accident previously evaluated, (2) create the possibliity of a now or different kind of accident from any accident previously evaluated, or (3) involve a significant reduction in a margin of safety. Carolina Power & Light Company has reviewed this proposed license amendment request and determined that its adoption would not involve a significant hazards consideration. The bases.,r this determination are as follows:
Pronosed Chanoo:
For the Brunswick Steam Electric Plant, Unit 2 Refueling Outage No 9, revise Technical Specification 3.8.1.1,' Actions b.3, c.3, and e.3 to allow a one-time only extension of the all wed out of-service times for Diesel Generators Number 3 and 4 from 7 days to 14 days.
Bash'
~ The change does not involve a significant hazards consideration for the following reasons:
1, The proposed amendment does not involve a significant increase in the probability or consequences of an accident previously evaluated. Carolina Power & Light Company has determined that a one-time-exterision af the 7 day AOT for one inoperable diesel generator will not have an unacceptable effect on the overall safety of the plant. The core damage probability for a 14 day AOT is no greater than that which exists for two 7 day AOTs Based on a probabilistic risk assessment (PRA) performed by CP&L, the increase in metall core damage probability is less than SE-7 over the second 7 day AOT period. This small increase is deemed accept 6le. ' i fact, the potentia! exlets to complete the maintenance work in two less days than currenuy scheduled (2 days saved by eliminating the preparatory and restoration time which would be necessary with a second 7 day LCO). This would effectively reduce the total out-of-service-time for Diesel Generators Number 3 and 4, thereby increasing diesel generator availability and decreasing core dama0e probability.
However, in the event that the full 14 days is lequired, the longer effective period available for the performance of maintenance in a 14 day AOT enhances the ability to maximize the amount of maintenance which can be accomplished during the outage, thereby increasing long term diesel generator reliability.
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diesel generators falling to perform their intended safety function. Technical Specification 4.8.1.1.2.d.1 requires that each diesel generator shall be demonstrated operable at least once per 18 months during shutdown by subjecting the diosol to an inspection in accordance with procedures preparod in conjunction with its manufacturer's recommendation =
for this class of standby service. The purpose of the Technical Specification 4.83.1.2.d.1 r~autrod inspection is to ensure that the diesel generators are functioning properly and to
-Inspect for any potential problems. This is accomplished via a partlat tear down of the diesel generator, in accordance with Brunswick Plant Procedure OMST-DG500, which will be performod for Diesel Generators Number 3 and 4 during the 14 day AOT period roquested by this proposed 4
amendment. This procedure takes approximately six days to complete and is accomplished in i
five parts. The first part consists of a review of oil and water analyses, periodic tests, and work orders, completed during the surveillance interval, to determine if there are any particular areas I
developing trends that may require additional investigation. Parts 2 and 3 consist of inspections and preventive measures recommended by the diesel manufacturer plus any checks that may be
{
advised based on Part 1 investigations. This work includes investigation of the camshaft bearings since the camshaft bearings have smaller clearances and closer tolerances than the main or rod bearings and would be more likely to show degradation. Part 4 consists of system checks and maintenance engine testing of the auxiliary tube oil pump, the motor driven fuel oil pump, the motor driven jacket water pump, and the engine to determine if the diesel generator is ready to be tested for operability. Finally, Part 5 is a final operability test of the diesel while running.
The net effect of performing these maintenance activities in addition to performing the expanded inspections and maintenance for Diesel Generators Number 3 and 4 will be an increase in overall diesel generator reliability and a higher assurance that the diesel generators are functioning properly. This increased scope will provide CP&t. with a more comprehensive data base for determining overall condition of the diesel generators.-
2.
The proposed amendment does not create the possibility of a new or different kind of accident from any accident previously evaluated. The proposed amendment only extends the 7 day AOT for one inoperable diesel generator to a 14 day AOT for one inoperable diesel generator. There is no chango to the plant or its manner of operation. The proposed amendment does not change the design, materials or construction standards applicable to Diesel Generators
- Number 3 and 4 criteria. Therefore, the proposed change cannot create the possibility of a new or different kind of accident from any previously evaluated.
3.
The proposed amendment does not involve a significant reduction in the margin of safety.
Allowance of a 14 day AOT for one inoperable diesel generator for Diesel Generators Number 3 and 4 will not reduce the margin of safety to any greater extent than two 7 day AOTs The extended AOT will allow for more comprehensive maintenance, thereby increasing long term diesel generator reliability and a long term increase in the margin of safety.
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4 ENCLOSURE 3 BRUNSWICK STEAM ELECTRIC PLANT, UNIT NO.1 DOCKET NO. 50 325/ LICENSE NO. DPR 71 REQUEST FOR LICENSE AMENDMENT ONE-TIME EXTENSION OF ALLOWED OUT-OF-SERVICE TIME FOR DIESEL GENERATORS NUMBER 3 & 4 TECHNICAL SPECIFICATION 3.8.1.1, ACTIONS b.3 c.3, & e.3 f,NYJBONMENTAL COBSIDER.ATIQBS 10 CFR 51.22(c)(9) providos criterlon for and identification of licensing and regulatory actions oliglble for categorical exclusion from podorming an environmental assessmont. A proposed amendment to an operating license for a facility requires no environmental assessment if operation of the facility in accordance with the proposed amendmont would not: (1) Involvo a significant hazards consideration; (2) result in a significant chango in the types or significant incroaso in the amounts of any offluents that may be roloasco offsito; (3) result in an increase in Individual or cumulative occupational radiation exposure. Cardina Power & L1 ht Company has reviewed this roquest and determined that the 0
proposed amendment moots the oligibility criterla for categorical exclusion set forth in 10 CFR 51.22(c)(9). Pursuant to 10 CFR 51.22(b), no environmental Impact statomont or environmental assessment noods to be prepared in connection with the issuanco of the amendmont. The basis for this determination follows:
Etoppsed Chanao For the Brunswick Steam Electric Plant, Unit 2 Refueling Outage No,9, revise Technical Specification 3.8.1.1, Actions b.3, c.3, and 0.3 to allow a one-time only extension of the allowed out ot service timos for Diosol Gonorators Number 3 and 4 from 7 days to 14 days.
llaili The change moots the ollgibility critoria for categorical exclusion not forth in 10 CFR 51.22(c)(9) for the following reasons:
1.
As demonstrated in Enclosura 2, the proposed amendment does not involve a significant hazards consideration.
2.
The proposed amendment does not result in a significant chango in the types or significant increase in the amounts of any offluents that may be released offsite. As such, the chango cannot affect the types or amounts of any effluents that may be released offsite.
3.
Die proposed amendn.an' does not result in an increase in Individual or cumulative occupational radiation excosure. lhotefnro, the amendment has no affect on either individual or cumulativo occupatier,a! radiation exposuro.
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ENCLOSURE 4 BR'INSWICK STEAM ELECTRIC PLANT, UNIT NO.1 DOCKET NO. 50-325/ LICENSE NO DPR-71 REQUEST FOR LICENSE AMENDMENT ONE TIME EXTENSION OF ALLOWED OUT-OF-SERVICE TIME FOR DIESEL GENERATORS NUMBER 3 & 4 TECHNICAL SPECIFICATION 3.8.1.1, ACTIONS b.3, c.3, & e.3 DESCRIPTION OF MAINTENANCE TABLE 1: SCHEDULED OUTAGE CHRONO 1.OGY FOR DIESEL GENERATORS NUMBER 3 & 4 DIESEL GENERATOR NUMBER 3 October 2,1991 Hang Electrical Clearance for Overload Relay for Starting Air Compressor Hang Electrical Clearance for Overload Relay for Engine Crankcase Hang Electrical Clearance for Overload Relay for Crankcase Drain Pump Hang Electrical Clearance for Overload Relay for DG 4 Building Supply Fan Perform 2 MST-DG 21R (DG #3 Trip Bypass Logic Test)
Add Oil to and Calibrate Engine Crankcase Vacuum Pree,sure Indicator Check Water Booster Pump Light inspect / Replace Isolation Amplifier of Exciter Current Transducer Replace Fuel Oil Discharge Strainer Differential Pressure Switch Replace Fuel Oil Duplex Filter Differential Pressure Switch Install Flex Conduit Connector Perform OMST DG500, Crankcase 7.2.1 Perform OMST-DG500, Valve Gear and Injectors 7.2.2 Inspect Jacket Water Cooler Change Oil in DG#3 Remove / Rework / Replace the Overload Relay for Starting Air Compressor #1 Rernove/ Rework / Replace Overload Relay for DG Engine Crankcase Vacuum Blower Remove / Rework / Replace Overload Relay for Crankcase Drain Pump Remove / Rework / Replace the Overioad Relay for DG Building Supply Fan Perform Preventative Maintenance on Starting and Control Air Fi!ters l
Perform Preventative Maintenance on DG Engine Pump Perform Grease inspection (Preventative Maintenance) on Motor Operator for Jacket Water Cooler Service Water inlet isolation Valve #2 Perform OMST DG500 for DG Traps and Strainers 7.2.3 l
Perform OMST-DG500 Lubrication for DG 7.2,4 October 3,1991 l
Change Oil for DG Engine Air Intake Filter Replace Spool Ploce for Jacket Water Cooler Service Water inlet Line inspect Check Valves for Service Water inlet to DG Jacket Water Cooler Perform Grease inspection (Preventative Maintenance) on Motor Operator for Jacket Water Cooler l
Service Water inlet isolation Valve #1 l
Remove Clearance from Overload Relay for Starting Air Compressor I
Remove Clearance from Overload Relay for Engine Crankcase Vacuum Blower E41
4 Remove Clearance from Overload Relay for Crankcase Drain Pump Remove Clearance from Overioad Relay for DG Building Supply Fan
~ Perform Acceptance Tests Perform OMST DG500 Generator 7.2.5 Perform OMST-DG500 Turbocharger 7.2.6 October 4,1991 Perform OMST-DG500 Cooling Water 7.2.7 Perform OMST DG500 Jacket Water Heat Exchanger 7.2.8 October 5,1991 Perform OMST DG500 Crankcase & Bedplate 7.3.1 Perform OMST DG500 Cam Shaft & Drive Adjustments 7.3.2 1
October 6,1991 Perform OMST-DG500 System Checks 7.4 October 7,1991 Remove Clearances -
Perform Valve and Electrical Line Ups Fill and Vent the System October 8,1991 Run OPT.12.2C (No. 3 Diesel Generator Monthly Load Test) and Place DG #3 in Service START OF SECOND 7 DAY LCO FOR DIESEL GENERATOR NUMBER 3 November 4,1991
- Hang Clearance for DG #3 Hang Electrical Clearance on Overload Relay for Barring Gear Replace DG Housing Bolt inspect and Replace Cam Shaft Bearings Repair Leaking Pipe Union Replace Test Valve at Engine Jacket Water Heater Circulating Pump Suction Replace Filter and Pre-lube Pump Outlet Flow Control Valve Pilot Solenoid Valve Replace Filter & Pre-lube Pump Outlet Flow Control Valve Pilot Solenoid Valve investigato Chattering DG Engino Jet Assist Right Header Check Valve Replace Run in DG Engine Control Panel Perform Non-Tech Spec Portion of 2-MST DG2tR (DG #3 Trip Bypass Logic Test)
Calibrate DG Engine Start Air Pressure Switch, Right Header Cal!brate DG Engine Start Air Pressure Switch, Left Header Remove / Rework / Replace Breaker for Overload Relay for Barring Gear Trouble Shoot Auxillary Lube Oil Pump Replace Pre-Lube Solenoid Valve in Engine Control Panel Calibrate DG Engine Lube Oil Filter Differential Pressure Switch E4 2
November 5,1991 Remove Clearance from Overioad Rolay for DG Barring Gear Perform Acceptance Test for Overload Relay for DG Barring Gear November 6,1991 Process Required Operability for DG#3 November 7,1991 Remove Clearance DG #3 Perform Valvo and Electrical Uncups November 8,1991 Fill and Vent the System Run OPT.12.2C (No. 3 Diesel Generator Monthly Load Tost) and Place DG #3 in Service E4-3 l
l DIESEL GENERATOR NUMBER 4 October 9,1991 Take Crankshaft Deflections on DG Hang Clearance for DG Outage Start 7 Day LCO Hang Clearance for Overload Relay for Lube OH Futer Heater Hang Clearance for Overload Relay for Engine Crankcase Vacuum Blower Hang Clearance for Overload Relay for Overload Relay for Crankcase Drain Pump Hang Clearance for Overload Relay for Auxillary Lube Oil Pump Hang Clearance for Overload Relay for Fuel Oil Transfer Pump Perform OMST-DG500 Crankcase 7.2.1 Inspect Jacket Water Cooler Add OH fo DG Engine Control Panel 1 and Calibrate Replace Panoi Heater Strip Calibrate DC Timing Relay (Auxillary Relay to DG Starter)
Calibrate DG Excitor Field Shorting Relay Replace DG Exciter Current Transducer Replace DG Fuel ON Discharge Stralner Differential Pressure Switch Replace DG Fuel Oil Duplex Filter Pressure Switch Check Wiring on DG Oil Booster Pump Perform OMST DG500 Valve and Gear injectors 7.2.2 Perform Preventative Maintenance on Starting and Control Air Filters Perform Preventative Maintenance on Engine Pumps Change OH in DG Remove /Rewc*k/ Replace Overload Relay for DG Lube Oil Filter Heater Remove / Rework / Replace Overload Relay for DG Engine Crankcase Vacuum Blower Remove / Rework / Replace Overload Relay for DG Crankcase Drain Pump Remove / Rework / Replace Overload Relay for DG Auxillary Lube Oil Pump Remove / Rework / Replace Overload Relay for DG Fuel Oil Transfer Pump October 10,1991 Repair Cooler Flange Leak Change DG Engine Air intake Filter Inspect Motor Operator for Jacket Water Cooler Service Water Inlet Isolation Valve #1 Inspect Motor Operator for Jacket Water Cooler Service Water Inlot isolation Valve #2 Perform OMST-DG500 Traps & Stralners 7.2.3 Perform OMST-DG500 Lubrication 7.2.4 inspect Service Air Header Check Valves to DG Building E44 l
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1-m-
O Check Valve Inspections on Check Valve for Service Water inlet to Jacket Water Cooler Remove Clearance from Overioad Relay for DG Lube Oil Fater Heater Remove Clearance from Overload Relay for DG Engine Crankcase Vacuum Blower Remove Clearance from Overload Relay for DG Crankcase Drain Pump
- Remove Clearance from Overload Relay for DG Auxlitary Lube Oil Pump Remove Clearance from Overload Relay for DG Fuel Od Transfer Pump October 11,1991 Hang DG Jacket Water Cooler Service Water Piping -
Perform Acceptance Test for Overload Relay for DG Lube Oil Filter Heater Perform Acceptance Test for DG Engine Crankcase Vacuum Blower -
Perform Acceptance Test for DG Crankcase Drain F' ump Perform Acceptance Test for DG Auxillary Lube Oil Pump Perform Acceptance Test for DG Fuel Oil Transfer Pump Drain DG Jacket Water Cooler Service Water Piping Perform OMST-DG500 Generator 7.2.5 Perform OMST DG500 Turbocharger 7.2.6 Disconnect at Jacket Water Cooler Service Water inlet Line Cut Out Weld on top End of 6" 90 Degree Ell, Remove 8' Inlet Elbow Assembly and Cut Out Existing 8" Wold at Reducer Process Required Operability for DG14 -
Visually examine AccessitAe Portions of Piping.
Temporarily Install Expansion Joint with Gaskets and Dielectric insulators on Cooler Nozzle and Install a'-
Elbow to Expansion Joint '
October 12,1991 Prep. Fit and Tack Welds in Place -
Perform OMST-DG500, Cooling Water 7.2,7
- Perform OMST-DG500, Jacket Water Heat Exchanger,7.2.8 Remove 8" Elbow Assembly and the Expansion Joint
--- Weld Out Joint on the Bench, Wold Joint in Place Perform OMST-DG500, Crankcase and Bedplate,7.3.1 Perform OMST-DG500, Cam Shaft and Drive Train Adjustments,7.3.2 October 13,1991 Cement Lined Piping and Allow Cure Time Final Bolt Up of Three 2" Flanged Connections Perform OMST-DG500, System Checks,7.4 Perform Acceptance Test J
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October 14,1991 Completo Perfom1ance of Acceptance Test Final Installation of Expansion Joint with Diolectric insulators on Downstream End Remake the Instrument Side Connection at Root Valvo Pe: form Dioloctric Test Romove clearanco for DG #4 Comploto Acceptance Test for DG #4 Perform Valvo and Eloctrical Lineups October 15,1991 Complete Valve and Electrical Lineups Declare interim Operability on DG # 4 Fill and Vent system Run OPT 12.2D (No. 4 Diosol Generator Monthly Load Tost) and Place DG #4 in Service START OF SECOND 7 DAY LCO FOR DIESEL GENERATOR NUMBER 4 November 9,1991 Hang Clearance for DG #4 Hang Clearance for Overload Relay for DG Barring Gear Inspect / Replace Cam Shaft Boarings Remove and Replace the Auxiliary Lubo Oil Pump Remove and Replace the Jacket Water Pump Replace Test Valve at DG Engino Jacket Water Heator Replace Solonoid Valve for DG Filter & Pre-lube Pump Outlet Chock Engine Lube Oil Filter Heator Temperature Switch Flush Engine Lubo Oil inlet Prot.sure Indicator Test Connection Replace Temperature Indicator for Engino Jacket Water Outlet Heador Replace and Calibrate Pressuro Switch for Service Water Engine Jacket Wator Cooler Replace Run DG Engine Control Panet Perform the Non Tech Spoc Portion of 2 MST-DG22R (DG #4 Trip Bypass Logic Test)
Trouble Shoot DG Engine Jet Assist Solenoid Valve Calibrate Volt Meter for 4160 V Bus E4 Remove /Rowork/Roplace Overload Relay for DG Barring Gear Replace Check / interlock Relay for DG 4 Day Tank Oil inlet Replace Pre-lube Solenoid Valve in Engine Control Panol November 10,1991 Evaluate Set Point Tolerance on DG Lubo Olt Differential Pressure Switch Repatr/Replaco DG Jacket Water Cooler Outlet Temporeture Control Valve Remove Closiance for Overload Rolay for DG Barring Gear Perform Acceptance Test for Overload Relay for DG Barring Gear E4 6
Ncvember 11,1991 Process Operability for DG #4 November 12,1991 Pull Clearance for DG#4 Perform Valve and Electrical Uneups November 13,1991 Continue Performing Valve and Electrical Lineups Fill and Vent the System Commence OPT.12.2D (No. 4 Diesel Generator Monthly Load Test)
November 14,1991 Complete OPT.12.2D and Place DG #4 h Service E4-7
s TABLE II. *OTHER MAINTENANCE lTEMS NOT CURRENTLY SCHEDULED FOR DIESEL GENERATORS NUMBER 3 AND 4 The following is a list of other items not currently scheduled to be worked during the Unit 2 Reload Outage No. 9 outage.
A. Mechanical Maintenance items - DG # 3 1.
Inspect slip joint in left Jacket water outlet line from the turbocharger for tightness and make repairs as necessary.
2.
Investigate and repair union on upstream side of 2-LO-V340 associated piping leaking lube oil.
3.
Investigate and repair MUD-V240 is leaking past seat.
4.
Remove DG 3 starting air tank B pressure relief valve from system for performance of PT 11.0 (ASME Section XI Safety / Relief Valve Test) 5.
Repair crank case vacuum blower oil leak for 2-DIE CRANK-VAC-BLWR-3.
B. Electrical Maintena ice items - DG # 3 1.
Replace 2-DG3-TY-6550-3 with new instrument due to calibration problem.
Calibrate per OPIC-TT010 to insure proper operation.
2.
Replace 2-DG3 SV-6555-3 per DR-89 0154.
C. Mechanical Maintenance items - DG #4 1.
Investigate and repair - Lo cooler east end flange appears to have a slight leak.
2.
Investigate and repair piping union on upstream side of temperature indicator 2-MUD-TI-6541-3.
3.
Investigate and repair MUD-V114 domineralizer water supply to head tan'. leaks which allows head tank to overflow.
4.
Repair or replace handwheel retalning bolt on jacket water cooler drain valve 2-SW-V287 located on east end of jacket water cooler.
5.
Remove DG 4 starting air tank A pressure relief valve from system for performance of PT-11.0 (ASME Section XI Safety / Relief Valve Test) 6.
Repair mechanical binding problem on solenold of right bank jet assist solenoid valve 6576 (2-DG4-SV-6576-4) 7.
Repair crank case vacuum blower oil leak for 2-DIE-CRANK VAC-BLWR-4.
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4 D. Electrical Maintenance items DG #4 1.
Replace 2-DG4 SV-65554 per DR 894155, 2.
Replace chock valvo 2 LO FCV 2088-AO.
3.
Disconnect and reconnect 2-SW V213-MO por OCM MOOO1 (AC and DC Limitorque Motor Operated Valvo Strokinq Proceduro) for valvo repair.
3 E4 9
O ENCLOSURE 5 BRUNSWICK STEAM ELECTRIC PLANT, UNIT NO.1 DOCKET NO. 50-325/UCENSE NO. DPR 71 REQUEST FOR UCENSE AMENDMENT ONE TIME EXTENSION OF ALLOWED OUT-OF SERVICE TIME FOR DIESEL GENERATORS NUMBER 3 & 4 - TECHNICAL SPECIFICATION 3.8.1.1, ACTIONS b.3, c.3, & o.3 TECHNICAL SPECIFICATION PAGES - UNIT 1
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