ML20080G966
| ML20080G966 | |
| Person / Time | |
|---|---|
| Site: | Fermi  |
| Issue date: | 09/15/1983 |
| From: | Tauber H DETROIT EDISON CO. |
| To: | Youngblood B Office of Nuclear Reactor Regulation |
| References | |
| RTR-NUREG-0737, RTR-NUREG-737, TASK-2.K.3.16, TASK-TM EF2-65-232, NUDOCS 8309200405 | |
| Download: ML20080G966 (2) | |
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Harry Tauber Group Vce Presioent Detroit Edison E!Tume September 15, 1983 EF2 - 65,232 Director of Nuclear Reactor Regulation Attention: Mr. B. J. Youngblood, Chief Licensing Branch No. 1 Division of Licensing U. S. Nuclear Regulatory Commission Washington, D. C.
20555
Dear Mr. Youngblood:
Reference:
(1) Enrico Fermi Atomic Power Plant, Unit 2 NRC Docket No. 50-341 (2) Detroit Edison Letter to NRC, EF2 - 53,454, June 4, 1981
Subject:
Clarification on SRV Maintenance Interval The reference (2) Detroit Edison letter to the NRC and section 5.2.2 of the Fermi 2 SER (p. 5-11) discuss a two year mainten-ance period for Main Steam Safety / Relief Valves (SRV's). Closer scrutiny of this commitment indicates that a clarification is required. The commitment as stated is impractical from a plant operation, maintenance standpoint, and is inconsistent with current industry practices and NRC positions. Accordingly, Detroit Edison intends to do the following in this regard:
- 1) 50% of the SRV's will be removed from service and tested and serviced at any given refueling outage (nominally 18 months).
- 2) The remaining 50% will be tested during the sub-sequent refueling outage.
The testing program is in conformance with Section XI of the ASME Code as stated in section 5.2.2.4.1.3 of the Fermi 2 FSAR. The mair.tenance performed on the valves is that maintenance or ser-vicing of the valve to correct or prevent abnormal or unsatisfac-tory SRV operation.
A48(IP s
8309200405 830915 F
PDR ADOCK 05000341 E
a Mr. B. J. Youngblood September 15, 1983 EF2 - 65,232 Page 2 The above position is consistent with current industry practice and is consistent with the NRC Safety Evaluation Report of the BWR Owners Group Response to Item II.K.3.16 of NUREG-0737. The Fermi 2 FSAR will be modified in a forthcoming amendment to remove any ambiguity or confusion. It should also be noted that we are working closely with the BWR Owners Group on the recent hypothesized binding / sticking problem which resulted in a delayed SRV actuation. We will plan to modify our testing and/or maint-enance program appropriately, consistent with the group's recom-mendations.
If you should have any questions, please contact Mr. Larry E.
Schuerman on (313) 586-4207.
Sincerely, cc: Mr. P. Byron Mr. M. D. Lynch t
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