ML20004G118
| ML20004G118 | |
| Person / Time | |
|---|---|
| Site: | Byron  |
| Issue date: | 06/19/1981 |
| From: | Abel J COMMONWEALTH EDISON CO. |
| To: | Harold Denton Office of Nuclear Reactor Regulation |
| References | |
| NUDOCS 8106290220 | |
| Download: ML20004G118 (2) | |
Text
~
[^N Commonwealth Edison
/
) one First National Plazt, Chicago, Illinois
~~
~1 Address Reply to: Post Office Box 767
\\
/. Chicago, Illinois 60690 I
/7 f
L 3
June 19, 1981 T JUN 2 61981m
~
55 Mr. Harold R. Denton, Director 0
Office of Nuclear Reactor Regulation 4g j as U.S. Nuclear Regulatory Commission Washington, DC 20555
Subject:
Byron Station Units 1 and 2 Construction Completion Schedule NRC Docket.Nos. 50-454 and 50-455 Reference (a):
May 29, 1981 letter from H. R. Denton to J. J. O'Connor
Dear Mr. Denton:
This letter is the first in a series of quarterly reports to you regarding the construction completion date for Byron Unit 1.
The rev'iew of construction schedules and budgets is done semiannually at Commonwealth Edison.
The quarterly reports to you will therefore indicate our latest projection of the fuel load date and will provide current data to demonstrate the credibility of that projection.
The present Byron 1 construction and testing schedule is keyed to fuel loading in April, 1983.
Our schedule identifies a large number of specific events which must occur prior to fuel load.
Attachment A to this letter summarizes the progress at Byron 1 as of June 1, 1981 in terms of the scheduled events.
There is no reason to revise our fuel load date at the present time.
Please address further questions regarding Byron I schedule to this office.
Very truly yours, J. S bel Director of Nuclear Licensing 220lN geel Ss I
L I 8106200 &
ATTACHMENT A BYRON STATUS AS OF JUNE 1,
1981 TOTAL SCHEDULE EVENTS ACTUAL EARLY LATE Construction Complete for Flush 82 24 28 0
Flush Complete 112 19 23 0
Construction Complete for Test 169 22 25 0
Systems Accepted for Test 169 19 22 0
Test Complete 155 11 13 0
TOTAL Column:
The total number of each event required for Unit I startup; e.g. 82 systems have been scheduled for turnover for flush.
ACTUAL Column:
The number of events completed; e.g. 24 systems have been turned over for flush.
SCHEDULE - EARLY Column:
The number required by the early target scheoule; e.g. 28 construction turnovers are scheduled for June 1, 1981.
SCHEDULE - LATE Column:
The number of critical events.
As of June 1,
1981 no late dates have been passed.
CONSTRUCTION COMPLETE FOR FLUSH:
The system has been completed to the level necessary for acceptance flushing.
FLUSH COMPLETE:
The acceptance flush is completed.
CONSTRUCTION COMPLETE FOR TESi:
The system is completed for testing.
SYSTEM ACCEPTED FOR TEST:
The Station has inspected the system, and any necessary work has been done to allow the station to accept the sytem for testing.
TEST COMPLETE:
The pre-operational test or system demonstration has been completed.
220lN l
l p