ML20141B006
| ML20141B006 | |
| Person / Time | |
|---|---|
| Site: | Peach Bottom  |
| Issue date: | 06/18/1997 |
| From: | James Shea NRC (Affiliation Not Assigned) |
| To: | Hunger G PECO ENERGY CO., (FORMERLY PHILADELPHIA ELECTRIC |
| References | |
| TAC-M98730, TAC-M98731, NUDOCS 9706230238 | |
| Download: ML20141B006 (4) | |
Text
. -
'Mr George A. Hunger, Jr.
June 18, 1997.
l Director-Licensing MC 52A-5 l
PECO Energy Company Nuclear Group Headquarters Correspondence Control Desk P.O. Box No. 195 i
Wayne, PA 19087-0195 l
SUBJECT:
REQUEST FOR ADDITIONAL INFORMATION (RAI) RELATED TO PROPOSED EXTENSION OF SURVEILLANCE INTERVAL FOR REPLACEMENT OF PRIMARY CONTAINMENT PURGE AND EXHAUST VALVE INFLATABLE SEALS. PEACH BOTTOM i
ATOMIC POWER STATION UNITS 2 AND 3 (TAC NOS. M98730 AND M98731)
Dear Mr. Hunger:
B letter dated May.9. 1997. PECO Energy Company (PECO) submitted a ro)osed j
ckangetoPeachBottomAtomicPowerStation(PBAPS), Units 2and3.
ecanical i
Specifications to extend the surveillance interval for replacement of the Primary Containment purge and exhaust valve inflatable seals from 48 months to 3
96 months.
PEC0 requested NRC approval of the requested changes by August 1. 1997.
[
The NRC staff has initiated a review of the p oposed changes and determined that additional information is needed to comp ete the review. The staff's RAI L
is included as an enclosure. The staff's RAI requests that PECO provide information to support statements regarding PBAPS purge and exhaust valve l
performance history.
If you have any questions regarding the RAI please do not hesitate to contact me at (301) 415-1428.
Sincer7y.
1 Joseph W. Shea. Project Manager Project Directorate I-2 Division of Reactor Projects - I/II Office of Nuclear Reactor Regulation Docket Nos. 50-277\\278
Enclosure:
RAI cc w/ encl: See next page NRC FILE CENTER COPY DISTRIBUTION Docket File OGC MHart l
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June 18, 1997 Mr. George A. Hunger. Jr.
Director-Licensing. MC 52A-5 PECO Energy Company Nuclear Group Headquarters Correspondence Control Desk P.O. Box No. 195 Wayne PA 19087-0195 l
SUBJECT:
REQUEST FOR ADDITIONAL INFORMATION (RAI) RELATED TO PROPOSED EXTENSION OF SURVEILLANCE INTERVAL FOR REPLACEMENT OF PRIMARY CONTAINMENT PURGE AND EXHAUST VALVE INFLATABLE SEALS. PEACH BOTTOM ATOMIC POWER STATION UNITS 2 AND 3 (TAC NOS. M98730 AND M98731)
Dear Mr. Hunger:
By letter dated May 9. 1997. PECO Energy Company (PECO) submitted a proposed change to Peach Bottom Atomic Power Station (PBAPS). Units 2 and 3. Tec1nical Specifications to extend the surveillance interval for replacement of the Primary Containment purge and exhaust valve inflatable seals from 48 months to 96 months.
PECO requested NRC approval of the requested changes by August 1. 1997.
The NRC staff has initiated a review of the proposed changes and determined that additional information is needed to complete the review.
The staff's RAI is included as an enclosure. The staff's RAI requests that PEC0 provide information to support statements regarding P8APS purge and exhaust valve performance history.
If you have any questions regarding the RAI. please do not hesitate to contact me at (301) 415-1428.
Si c e y.9 Jos h W. Shea. Project Manager Pho ect Directorate I-2 Division of Reactor Projects - I/II Office of Nuclear Reactor Regulation Docket Nos. 50-277/278
Enclosure:
RAI cc w/ encl: See next page p
-,g
Mr. George A. Hunger Jr.
Peach Bottom Atomic Power Station.
PECO Energy Company Units 2 and.3 cc:
J. W. Durham. Sr.. Esquire Chief-Division of Nuclear Safety f
Sr. V.P. & General Counsel PA Dept. of PECO Energy Company Environmental Resources 2301 Market Street. S26-1 P.O. Box 8469 l
Philadelphia, PA 19101 Harrisburg. PA 17105-8469 PECO Energy Company ATTN: Mr. T. N. Mitchell. Vice President Board of Supervisors Peach Bottom Atomic Power Station Peach Bottom Township 1848 Lay Road R. D. #1 Delta. PA 17314 Delta. PA 17314 PECO Energy Company Public Service Comission of Maryland ATTN:
Regulatory Engineer. A4-SS Engineering Division Peach Bottom Atomic Power Station Chief Engineer 1848 Lay Road 6 St. Paul Centre Delta. PA 17314 Baltimore. MD 21202-6806 Resident Inspector Mr. Richard McLean
)
U.S. Nuclear Regulatory Comission Power Plant and Environmental Peach Bottom Atomic Power Station Review Division P.O. Box 399 Department of Natural Resources Delta. PA 17314 B-3. Tawes State Office Building Annapolis. MD 21401 Regional Administrator. Region I U.S. Nuclear Regulatory Comission Dr. Judith Johnsrud 475 Allendale Road National Energy Comittee King of Prussia. PA 19406 Sierra Club 433 Orlando Avenue Mr. Roland Fletcher,
State College. PA 16803 Department of Environment 201 West Preston Street Manager-Business & Co-owner Affairs Baltimore. MD 21201 Public Service Electric and Gas Com3any A. F. Kirby. III P.O.
30x 236 External Operations - Nuclear Hancocks Bridge NJ 08038-0236 Delmarva Power & Light Company P.O. Box 231 Wilmington, DE 19899 Manager-Peach Bottom Licensing PECO Energy Company PECO Energy Company Nuclear Group Headquarters Plant Manager Correspondence Control Desk Peach Bottom Atomic Power Station P.O. Box No. 195 1848 Lay Road Wayne, PA 19087-0195 Delta. PA 17314 i
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t REQUEST FOR ADDITIONAL INFORMATION j
PEACH BOTTOM ATOMIC POWER STATION. UNITS 2 AND 3
]
4 PRIMARY CONTAINMENT PURGE AND EXHAUST VALVE REPLACEMENT INTERVAL EXTENSION l
In the May 9, 199? submittal PEC0 made the following statements I
(1) "T-ring seal performance reviews since 1986 indicate that documented failures were not due to material condition, but were mainly the result of improper installation."
(2) " Review of the PBAPS aurge and exhaust valve performance history has determined that t1ese valves are relatively free of valve leakage problems.
Review of valve leakage test data supports this assessment."
The Torus to Reactor Building vacuum breaker isolation valve leakage test results were also stated as supporting the extension request.
Please 3rovide the purge and exhaust valve and Torus to Reactor Building vacuum areaker valve performance data used to support these statements.
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i i
Enclosure