ML19308B240
| ML19308B240 | |
| Person / Time | |
|---|---|
| Site: | Oconee  |
| Issue date: | 06/03/1978 |
| From: | Office of Nuclear Reactor Regulation |
| To: | Reid R Office of Nuclear Reactor Regulation |
| References | |
| NUDOCS 7912170531 | |
| Download: ML19308B240 (3) | |
Text
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!!EliORANDG:t FOR:
R. U. Reid, Chief, Operating Reactors Branch !4 Division of Operating Reactors J
FR0!!:
Acting Chief Engineering Branch j
Division of Operating Reactors
SUBJECT:
Dur.E P0'lER CC:!PNiY - OC0!!EE fl3 CLEAR STATIO:1 1
REACTOR C0!! Tall:lEllT DUILDIt!G TE!!D0il SURVEILLA! ICE REQUEST FOR TECIFIICAL SPECIFICATI0f! CitAt!GE Ill SECT. 4.4.2 (TAC 076G1)
Plant !!ano:,_0conee Station Licensing StWii:' Operating Plant Docket l'o: 50-269 50-270; 50-287 DocuaentsRevieweg; Duke Power Coapany letter froa W. O. Parker, Jr.
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I to E. G. Case, dated June l?,1978 Brcnch and Porject ilanager Requesting Assistance: ORB 4; M. Fairtile i
Pequested Conpletion Date: July 31,1978 Operating Reactors Branches Involved: Engineering Branch 4
Description of Request: TAC # 7661 review Status: !!aiting for additional information In accordance uith your request, the Engineering Branch, Division of Operating Reactors has reviewed the structural and catcrial aspects j
l of the information subattted by Duke Pouer Company in the document i
listed above.
l By letter dated June 12, 1978, Duke Power Company proposed a change to Technical Specification 4.4.2 deleting a damaged tendon from the 4
l Oconce Unit lio. 2 containment tendon surveillance program. The tendon was damaged during a scheduled inspection and had to ba replaced by a spare. The licensee considers the rcaaining available tendons in the progran as sufficient to provide the needed materials history.
j The Engineering Branch was requested to review the proposed change and either prepara any necessary requests for additional information or a'
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Safety Evaluation to accompany a license amendment..The target date
'or task completion is July 31, 1978.
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t h'c find that we require additional'mliiformdtion, as indicated in the e.
j l-enclosure, before we can complete our revicu and evalu~ation.
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6318 ENCLOSURE 9
(REQUEST FOR ADDITIONAL INFORMATION)
DUKE POWER COMPANY - OC0 flee STATION (DOCKETS # 50-269; 50-270; 50-287)
REVIEW 0F REACTOR CONTAINMENT BUILDING -
REQUEST FOR CHA! IGE IN TECliNICAL SPECIFICATION 4.4.2 SUBSTITUTION OF SURV2ILLANCE TENDON 2D28 ENGINEERING BRANCN DIVISION OF OPERATING REACTORS 1.
Indicate whether any damage has been done to the concrete, anchor hardware or the conduit (also trumpet) in the vicinity of/or adjacent to, the damaged tendon 2D28.
2.
Describe the procedure which will be used in installing the new tendon replacing the broken tendon 2028 and especially to what level of prestress it will be tensioned. Justify this level, considering that the new tendon has to participate in load sharing with the existing tendons, during a i
postulated LOCA.
3.
Since the total number of surveillance tendons is prescribed by the R. G.1.35 and the Technical Specifications indicate what surveillance tendon will be substituted for the broken 2D28.
4.
Provide the results of wire inspection and testing for one wire in the broken tendon 2D28, as prescribed in the Technical Specification.
9
OM liEMORNIDD:1 FOR:
R. W. Reid, Chief, Operating Reactors Branch f4 Division of Operating Reactors FROM:
Acting Chief. Engineering Dranch Division of Operating Reactors
SUBJECT:
DUKE PO'JER COMPA!!Y - OC0!!EE !!UCLEAR STATI0tl REACTOR CONTAINMEllT CUILDIt!G TEf!D0ft SURVEILUdlCE i
REQUEST FOR TECH!!ICAL SPECIFICATI0Il CllA!GE Ill SECT. 4.4.2 (TAC #7661)
Plant!!ame: Oconee Station Licensing Stage: Operating riant i
Docket I:o: 50-269; 50-270; 50-287 Documents Revicwed: Duke Power Cocpany letter from W. O. Parker Jr.
e to E. G. Case, dated June 12, 1973 i
Branch and Forject flanager Requesting Assistance: ORB 4; M. Fairtile Requested Completion Date: July 31, 1978 Op' rating Reactors Branches Involved: Engineering Branch Description of Request: TAC d 7661 Revicw Status: Maiting for additional inforcation j
In accordcnce with your request, the Engineering Branch, Division of Operating Reactors has reviewed the structural and catorial aspects of the infomation submitted by Duke Power Company in the document listed above.
By letter dated June 12, 1978, Duke Power Company proposed a change to Technical Specification 4.4.2 deleting a daaaged tendon from the Oconee Unit No. 2 containment tendon surveillance program. The tendon was damaged during a scheduled inspection and had to be replaced by a spare. The licen::ce considers the reaaining available tendons in the program as sufficient to provide the needed caterials history.
The Engineering Branch uas requested to review the proposed change and either prepare any necessary requests for, additional infomation or a Safety Evaluation to accompany a itcense amendment. The target date for task completion is July 31, 1978.
- e. m He find that we require additionaT'liiform tion, as indicated in the enclosure, before we can complete our review and evaluation.
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