ML19257A557

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Submits Addl Implementation Schedules for short-term TMI Lessons Learned Task Force Requirements Re Safety Valve Position Indication,Reactor Coolant Saturation Meter,Leakage Reduction Program & Design Review of Plant Shielding
ML19257A557
Person / Time
Site: Davis Besse 
Issue date: 12/31/1979
From: Crouse R
TOLEDO EDISON CO.
To: Harold Denton
Office of Nuclear Reactor Regulation
References
RTR-NUREG-0578, RTR-NUREG-578 570, TAC-12453, NUDOCS 8001040622
Download: ML19257A557 (2)


Text

"

TOLEDO Docket No. 50-346 l3[3]6)()Pd License No. NPF-3 ACHARO P. CAouSE Serial No. 570 Ell!"""*

(4191253-5221 December 31, 1979 Mr. Harold R. Denton, Director Office of Nuclear Reactor Regulation U. S. Nuclear Regulatory Commission Washington, D. C.

20555

Dear Mr. Denton:

Toledo Edison identified its schedule for complying with your staff's short term lessons learned recommendations for the Three Mile Island, Unit Two,.(IMI-2), incident in our letter of October 23, 1979 (Serial No. 546) and later revised portions of the response in our letter of November 21, 1979 (Serial No. 559). The recommendations, committed to for implementation by January 1, 1980 at the Davis-Besse Nuclear Power Station, Unit #1 are now completed to the extent previously defined.

Since submittal of our November 21, 1979 letter, we have further defined the schedules of four activities. These include:

1) Recommendation 2.1.3a - PORV and Safety Valve Position Indication.

The equipment delivery for installation includes cabling, cabinets and,- sensors that we currently project will be available in March of 1980. This would allow installation concurrent with the reactor coolant saturation meter, which will utilize common cabinetry, during the planned spring ou tage.

2) Recommendation 2.1.3b - Reactor Coolant Saturation Meter.

The current projected schedule for delivery of equipment cabling and cabinets is April 1, 1980. This would allow installation during the planned spring outage.

3) Recommendation 2.1.6a - Leakage ReductioncProgram.

In addition to the summary description of the leakage reduction program an initial system leakage reduction effort will be completed by January 31, 1980.

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4) Recommendation 2.1.6b - Design Review of Plant Shielding.

5 Any proposed modifications and their implementation schedule will be provided by January 21, 1980 instead of February 20, 1980.

THE TOLECO EDISON COMPANY EDISON PLAZA 300 MADISON AVEflUE TOLEDO. CHIO 43652 1689 182 8001040 1

Docket No. 50-346 License No. NPF-3 Serial No. 570 December 31, 1979 Page 2 of 2 It is expected that these activities or revised schedules will provide timely resolution of Toledo Edison's efforts to implement your staff's short term lessons learned recot:mendations. As always, we are avail-able to further discuss any aspect of this submittal.

Very truly yours,

((

,ma; RPC:TJM:sle cc: Mr. Dan Garner 1689 183

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