ML20039B804
| ML20039B804 | |
| Person / Time | |
|---|---|
| Site: | Byron  |
| Issue date: | 12/15/1981 |
| From: | Delgeorge L COMMONWEALTH EDISON CO. |
| To: | Harold Denton Office of Nuclear Reactor Regulation |
| References | |
| NUDOCS 8112230576 | |
| Download: ML20039B804 (2) | |
Text
es O-Commonwealth Edison One First National Plaza. Chicago, libnois Q
Address Reply to: Post Office Box 767 Chicago, Illinois 60690 Decembe r 15, 1981 Mr. Harold R. Denton, Director Of fice of Nuclear Reactor Regulation 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 third in a series of quarterly reports to you regarding the construction completion date for Byron Unit 1.
The Byron 1 construction and testing schedule is still keyed to fuel loading in April, 1983.
The schedule identifies a large number of specific events which must occur prior to fuel load.
Attachment A to this letter indicates the status of Byron 1 as of December 1,1981, in terms of the scheduled events.
No critical dates have been passed in completing the construction and testing necessary to support the April, 1983, fuel load date.
Please address further questions regarding the Byron 1 schedule to this office.
Very truly yours, L.O. DelGeor e Director of Nuclear Licensing im
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ATTACHMENT A BYRON STATUS AS OF DECEMBER 1,1981 TOTAL SCHEDULE EVENTS ACTUAL EARLY LATE Construction Complete for Flush 83 55 60 0
Flush Complete 117 53 67 0
Construction Complete for Test 175 47' 103 0
Systems Accepted for Test 175 39 90 0
Test Complete 178 35 61 0
TOTAL Column: The total number of each event required for Unit 1 Startup; e.g., 83 systems have been scheduled for Turnover for Flush.
ACTUAL Column: The number of events completed; e.g., 55 systems have been turned over for Flush.
SCHEDULE - EARLY Column: The number required by the early target schedule; e.g., 60 Construction Turnovers are scheduled by December 1,1981.
SCHEDULE - LATE Column: The number of critical events. As of December 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 complete.
CONSTRUCTION COMPLETE FOR TEST: The system is completed for testing.
EYSTEM ACCEPTED FOR TEST: The Station has inspected the system, and any necessary work has been done to allow the Station to. accept the system for testing.
TEST COMPLETE:
The Pre-Operational Test or System Demonstration has been completed.
_D