ML19253B827
| ML19253B827 | |
| Person / Time | |
|---|---|
| Site: | Crane  |
| Issue date: | 03/09/1976 |
| From: | Reid R Office of Nuclear Reactor Regulation |
| To: | Arnold R METROPOLITAN EDISON CO. |
| References | |
| NUDOCS 7910310579 | |
| Download: ML19253B827 (1) | |
Text
s Distribution MAR 0 9 B76 (D6cREt)
DEise.
NRC PDR Docket No. 50-289 Local PDR KRGoller TJCarter Metropolitan Edison Company ATTii:
Mr. R. C. Arnold RIngtma Vice President - Generation DBridges RWReid P. O. Box 542 Reading, Pennsylvania 19603 TAbernathy JBuchanan JWetmore Gentlemen:
ACRS (16)
OELD RE: THREE MILE ISLAND, UNIT L OI&E (3)
Minimum fracture toughness require =ents for ferritic materials of pressure-retaining components of the reactor coolant pressure boundary of water cooled power reactors are specified in 10 CFR Part 50, Appendix G, " Fracture Toughness Requirements". This regulation became effective on August 16, 1973 and requires that adequate margins of safety be provided during any condition of nornal operation for tne pressure boundary over its service lifetime. These conditions include anticipated operational occurrences and system hydrostatic tests.
Many nuclear power plants were in advanced stages of desi n or 6
construction, or had already received operating licenses at the time Appendix G became effective. It was appropriately recognized that these plants would require subsequent evaluation on a case-by-case basis for compliance with Appendix 3.
Consequently, you are requested to review the reactor coolant system pressure-temperature limits contained in tne Technical Specifications for your facility to determine if they are in full compliance with Appendix G.
Your review should include the pressure-temperature limits for heatup and cooldown operations, system hydrostatic tests, and reactor core criticality.
If you find that your pressure-temperature limits in your Technical Specifications are not in full compliance with Appendix G, we request that you propose appropriate changes to your Technical Specifications within 60 days.
Sincerely, L,
-c.;nct signed t'!
Robert
'4.
Reid, Chief Operating Reactors 6 ranch 94 Division of Operating Reactors
Enclosure:
Appendix G 1505 131 cc: See next page
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