ML20072G203
| ML20072G203 | |
| Person / Time | |
|---|---|
| Site: | Crane  |
| Issue date: | 06/08/1983 |
| From: | Hukill H GENERAL PUBLIC UTILITIES CORP. |
| To: | NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I) |
| References | |
| REF-SSINS-6820 5211-83-176, IEB-83-03, IEB-83-3, NUDOCS 8306280366 | |
| Download: ML20072G203 (3) | |
Text
s.
s GPU Nuclear Corporation
- Nuclear
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Middletown, Pennsylvania 17057 717 944-7621 TELEX 84-2386 Writer"s Direct Dial Number:
June 8, 1983 5211-83-176 Regional Administrator Region I U.S. Nuclear Regulatory Commission 631 Park Avenue King of Prussia, PA 19406
Dear Sir:
Three Mile Island Nuclear Station, Unit 1 (TMI-1)
Operating License No. DPR-50 Docket No. 50-289 IE Bulletin 83-03 This letter and its attachment form the GPUN response for TMI-l to IE Bulletin 83-03, required by action item no. 4.
The emergency diesel generators at TMI-l are different from those described in the Bulletin in that they are self contained, requiring no raw service or river water flow for cooling purposes.
In addition, TMI-l has not experienced any problems with the emergency diesel generator coolant check valves. As a result, GPUN commits to the following program for the testing and inspecting of diesel generator jacket cooling check valves:
- 1) Attachment A provides a list of the emergency diesel generator coolant check valves that will be disassembled and inspected by the end of the first refueling outage commencing after April 1, 1983.
These valves will be added to the IST program.
- 2) The check valves listed in Attachment A will continue to be functionally tested open during the monthly surveillance test of the diesel generators and during the annual pre-and post-overhaul surveillance test run.
- 3) The frequency of disassembly and inspection of the valves listed in Attachment A (subsequent to Item 1 above) will be in accordance with the 10 year ISI inspection interval, provided that the initial inspection is satisfactory.
If the initial inspection is not satis-factory, the frequency of inspections will be increased or other appropriate action taken.
8306280366 830608 PDR ADOCK 05000289 G
PDR GPU Nuclear Corporation is a subsidiary of the General Public Utilities Corporation
s-Regional Administrator 5211-83-176
. The statements made above are true to the best of my knowledge, information and belief.
Sincerely,
. D.
ukill Director, TMI-l HDH:CJS:vj f Enclosure cc:
R. Conte
'J.
Van Vliet Document Control Desk (original)
Sworn and Subscribed to Before my-this m day c,f-June, 1983.
$ w%%u.e Notary Pdblic i
DAltlA JEAN BERRY, NOIARY PUBLIC 5100LETOWN 86RO. DAUPHIN COUNTY WY CONNIS$10N EXPf RES JUNE 17.1985 Member. Pennsyhania Association of Notnes s
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ATTACHMENT A DIERGENCY DIESEL GENERATOR COOLANT CHECK VALVES TO BE DISASSDIBLED AND INSPECTED VALVE TYPE VALVE TAG #
FUNCTION MANUFACTURER SIZE EG-V32A/A and 32B/A Jacket Coolant Radiator Mission 4"
Outlet 12 HMP EG-V32A/B and B/B Jacket Coolant Radiator Mission 4"
Outlet 12 HMP EG-V34A and 34B Jacket Coolant Radiator Mission 5"
Bypass-12 m!P EG-V4SA and 48B Air Coolant Cooler Mission 4"
Radiator Outlet 12 HMP O
L.
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