ML18116A278
| ML18116A278 | |
| Person / Time | |
|---|---|
| Site: | Surry  |
| Issue date: | 07/20/1979 |
| From: | Schwencer A Office of Nuclear Reactor Regulation |
| To: | Proffitt W VIRGINIA POWER (VIRGINIA ELECTRIC & POWER CO.) |
| References | |
| NUDOCS 7908070724 | |
| Download: ML18116A278 (4) | |
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Docket r~o. 50-281 JUL 2 O 1979 Mr. W. L. Proffitt Senior Vice President - Power Virginia Electric and Power Company Post Office Box 26666 Richmond, Virginia 23261
Dear Mr. Proffitt:
DI ST RIB UTION c::]ockff File 50-28-!:>
'NRR Rdg ORB1 Rdg D. Eisenhut W. Gammill B. Grimes J. CArter A. Schwen.cer KXXR~iH~UO(
P. Kreutzer I &E ( 3)
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- D. Neighbors V. Noonan ACRS (16)
J. Buchanan KRb\\X TERA
. We have reeeRt~ had a meeting, May 3, 1979~ and discussions with your staff regarding the need for inspection of the Surry 2 Reactor
'Cool ant Pump supports.
Our concern is the use of high strength marag,e steel included in these structures.
~-
So that we can make further assessment regarding inspection for these supports, it is requested that you provide the information in Enclosure l.
A timely response is requested so that we may complete our review
, while Surry 2 is shutdown for steam generator repair.
Enclosure:
Request for Additional Information cc; w/enclosure See nex_t, page A. Schwencer~ Chief Operating Reactors Branch #1 Division of Operating Reactors
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UNITED STATES NUCLEAR REGULATORY COMMISSION,
. WASHINGTON, D. C. 20555 Docket No. 50-281 JUL 2 0 197g
- Mr. W
~ L. Proffitt.
Senior Vice** President - Power Virginia' Electric and Power Comp~ny
- Post. Office Box 26666 Richmond,:Virginia. 23261
Dear Mr.* Proffitt:
We* have had a meeting, May 3,. 1979, and discussions with your staff r_egardi_ng the need for inspection of the Surry 2 Reactor Coolant Pump supports.
Our concern is the use of high strength maraging steel included 'in these structures.
. So that. we can make fu"rther assessment regarding *inspection for these supports, it: is requested that you:* prov.ide the i'nfonnation i"n.
- Enclosure* l *
- A timely response: is requested so that we may complete* our review while Surry 2 is shutdown for. steam generator repair.
Enclosure:
Request for Additional Infonnation cc: w/enclosure See next page.-
Sincerely,
Mr. W. L. Proffitt Virginia Electric and Power Company cc: Mr. Michael w. Maupin Hunton and Williams Post Office Box 1535 Richmond~ Virginia 23213 Swem Library College of' Wi 1 liam and Mary
~ill iamsburg~- Virginia 23185
- Donald. J *. Burke
- 2. -
U. S *. Nuc_l ear Regulatory-Cornmi ssion Region II Office of rnspection and Enforcement 101 Marietta Street, Suite 3100 Atlanta*, Georgia,; 30303.
JUL 2 0 1979
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ENCLOSURE 1 REACTOR COOLANT PUMP SUPPORTS
- l
- Provide details of inspection performed on the monoba11 assemblies prior to installation into the plant~. Provide significant results~
of any inspections. Include the threaded connection.
- 2.
Indicate the consequences of a-complete failure of the r~actor coolant pump supports. during normal and postulated accident
- conditions.
3.. Provide. any alternative NOE methods. available which could be used to inspect* those* areas of the monoball assembly not accessible e_xcept by disassembly *.
- 4.
Indicate* the impact on your* steam generator repair schedule of inspecting_ fully one monoball assembly on* the reactor coolant pump* support.
- 5.
Provide the maximum stress and stress s.tate seen by any of the monoball assembly parts under normal operation and postulated acci.dents.
- 6.
Provide.- the procedures that are intended to be used to inspect the reactor coolant pump supports.* *
,