ML20235E738

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Forwards Change 1 to Licenses DPR-29 & DPR-30,revising Tech Spec Pages 9,23 & 34 to Lower turbine-control-oil Pressure Scram Setpoint from 1,100 to 900 Psig
ML20235E738
Person / Time
Site: Quad Cities, 05000000
Issue date: 04/19/1972
From: Skovholt D
US ATOMIC ENERGY COMMISSION (AEC)
To: Brian Lee
COMMONWEALTH EDISON CO.
Shared Package
ML20235B311 List: ... further results
References
FOIA-87-111 NUDOCS 8709280249
Download: ML20235E738 (5)
v • d • e


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WDooly, DR

  • TJCarter, DRL Compliance (3)* . DLZiemann, DRL
  • JIRiesland, DRL-APR 191972 NDube, DRL (5) ' UfDiggs, DRL ,

JRBuchanan, ORNk' RBoyd, DRL *

, Doaket Bes. 50-254 TWLaughlin,.DTIE- RDeYoung, DRL.

and 50 26 PDR - RVollmer, DRL-Local PDR

  • i Docket File' Causasswealth Edison Coseany DRL Reading-ATTWs Mr. Byrea tee, Jr. Branch Reading Assistaat to the President ACRS (16)

P. O. Boz 747 DJSkovholt, DRL.

Chicago, Illinois 60690 Change No. 1 Lisease Nos. DPR-29 Gentlement sad DrR-30 la,a letter dated April 7, 1972, you proposed a change to the Technical Specifications of Facility Operating Lisamme Bee. DFR-29 .and DPR-30 for quad-Cities Daits 1 and 2. The proposed ebenge would lower the turbine-eostrol-oil pressure scram set point from 1100 psig to 9C4 peig. The lower set point is regensted to reduse the frequeasy'et spuriens screes soeurring from this senser while emaipulating tho' turbine sentrola during startup.

An identical regnest for Dresden Units 2 and 3 was previously reviewed by as and aFProved em November 3,1971, as part of Chang,e Nos.16 and 3 to Facility Lisease Mos. BPR-19 and DFR-15, respostively. The turbines, electre-hydraulie-eentrol systems, and reactor proteatima systems of Quad-Cities Unita 1 and 2 are eenparabia with those of Dresden Units 2 and 3, therefore, we have eensladed that the proposed change does met present significant hasards seasiderations not described or implicit i in the Safety Analysis Report and that there is reasonable assurance that the health and safety of the public will not be endangered.

Aseerdingly, purseest to Section 50.59 of 10 CFR Part 50, the TWaar Spesifisations of Fasility Operating License Mos. DFR-29 and art-30 fee gend-Cities Units 1 and 2 are bareby shassed to imelade the s' we request by replacing pages 9, 23, and 34 with the revised pages emeload herewith.

Sincerely,

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' wasmuotou.o.c. os4 April 19,1972 Docket Nos. 50-254 and 50-265' Commonwealth ATTN Edison Company Mr. Byron Lee, Jr.

P. O. Box 767 Assistant to the President Chicago, Illinois 60690 Gentlement Change No. l' License Nos. DPR-29 In a letter ' dated April 7,1972 and DPR-30 Quad-Cities Units 1 and 2 Specifications of Facility Opera,t control-oil pressure scram. you proposed a change to the T The proposed change would lower th cal lower set point is requested setwhile point to red from 1100 psig to 900 e turbine-psig occurring during startup. from this sens'or mani uce the frequency of spurious eersas

. The pulating the turbine controls An identical request for Dresd' en U i by us and approved on November 3 electro-hydraulic-control ,1971,n as part of systems PR-25, respectively.

8 change to Facility Nos.16 Licens a 2 and 3;. therefore, we have conclud dQuad-Citiee

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not present significant hazards consid in the Safety Analysis Report and th that the proposed change doesthose that the health and safety of th at there is reasonable assuranceera e public will not be endangered.

Specifications of Pacility OperatiAccordingly, pursuan by replacing pages ng t 9, 23 License and 34 Nos. wi DPR-29 hQuad-Cities and DPR Un the revised pages enclosed t.

herew Sincerely, M

nald J vholt Assistant Director for Reactor Operations

Enclosures:

Division of Reactor Licensing Revised pages 9, 23 & 34 cc:

See attached sheet

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