ML20037B151
| ML20037B151 | |
| Person / Time | |
|---|---|
| Site: | Dresden  |
| Issue date: | 04/09/1964 |
| From: | Case E US ATOMIC ENERGY COMMISSION (AEC) |
| To: | COMMONWEALTH EDISON CO. |
| Shared Package | |
| ML20037B153 | List: |
| References | |
| NUDOCS 8009050624 | |
| Download: ML20037B151 (2) | |
Text
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',. 2 !iUiIII Al-y g, T UNITED STATES v[h.---.,%
ATOMIC ENERGY COMMISSION g- { {QP,y 4
.._dj *I WASHINGTON. D.C. 20545 l *
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MR E B64
- c&.et I;o. i;-lO C;=
- nwealth Edisen Ccmpany Change No. 7
~1 'iest Adans Street Chicago 90, Illincis Attenticn:
Mr. D. Robert Ecwer Treasure.
Gantlemen:
Cc=cnvealth Edison Company, by letter dated August 29, 1963, has requested authorization to decrease the frequency of control rod drive system tests required by the Technical Specifications.
Supplementary information was sub-sitted en Neve=ber 21, 1963 and March 6, 196h.
- t...
Tnis request, designated Proponi Change No. 7, has been considered pursuant to F
t the provisi:ns cf Secticn 50.59, 10 CFR 50.
On the basis of the information-
'I sub=itted in support thereof it has been concluded that Change No. 7 does not present significant hazards censiderations not described or implicit in the i
hazards su=ary. report and that there is reasonable assurance that the health
's h and safety of the public will not be endangered.
A related hazards analysis 5t h
is attached.
In view of the foregoing, the Technical Specifications to License No. DPR-2 are hereby amended as set forth below:
L
?:
1.
Eliminate the fourth paragraph of Section F.1.
f 2.
Change the fifth para 5raph of Section F.1 to read as follows.
E l techanists shall be subject to a friction test using a test vhich permits a sensitive measurement of fricticnal forces in the drite.
Tne ur.iferrity of moticn through a full upward strcke and fluctuatien in pressure shall be observed."
3 Add a paragraph (new the fifth) at the end of Section F.1 to read as fellows:
- x "All techanisms and blades shall be tested in the foregoing manner during each reactor refueling cutage and at intervals of not more than six =cnths between reacter refueling outages."
8009.05'0[
Commonwealth Edison Company. 4.
Change Section F.2, the last sentence, to read as follows:
"These tests shall be made during each reactor refueling outage and at intervals of not more than six months between reactor 33 refueling outages."
5.
Delete Sv..,;n F.4, which was incorporated into the Technical
' ' =
Specifications by Change No. 3..
6.
Add a new Section F.4: " Tests and Inspections of Control Rod Drives Routine inspections during major outages: Not less than two control rod drive mechanisms shall be removed, disassembled, and thoroughly inspected at intervals not to exceed 16 months.
It is anticipated that such inspections will lv nade during outages involving the removal of the reactor head for refueling or other purposes."
Sincerely yours, Original siped by Robert H. Bryan Edson G. Case, Acting Director Division of Reactor Licensing
Enclosure:
llazards Analysis t
!