ML20137C511
| ML20137C511 | |
| Person / Time | |
|---|---|
| Site: | Peach Bottom  |
| Issue date: | 03/19/1997 |
| From: | Hunger G PECO ENERGY CO., (FORMERLY PHILADELPHIA ELECTRIC |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| References | |
| GL-94-02, GL-94-2, NUDOCS 9703250026 | |
| Download: ML20137C511 (2) | |
Text
~ . . . . . . ~ . . . - ~ .- -
Et: tion tupport Depsrtment 4 GL 9442
, :' v PECO NUCLEAR nwe-ec -
965 Chesterbrook Boulevard A Unit of PECO Energy Wayne. PA 19087-5691 March 19,1997 Docket Nos. 50-277 50-278 License Nos. DPR-44 DPR-56 )
U.S. Nuclear Regulatory Commission Attention: Document Control Desk Washington DC 20555
Subject:
Peach Bottom Atomic Power Station, Units 2 and 3 i I
Response to Generic Letter 94-02, "Long Term Solutions and Upgrade of interim Operating Recommendations For Thermal Hydraulic Instabilities in Boiling Water Reactors" !
Gentlemen:
In a letter from PECO Energy Company (PECO Energy) to the U. S. Nuclear Regulatory Commission (USNRC) dated September 9,1994, PECO Energy provided our response to Generic Letter (GL) 94-02, "Long Term Solutions and Upgrade of interim Operating Recommendations For Thermal Hydraulic instabilities in Boiling Water Reactors." in the letter, PECO Energy proposed a schedule for implementation of the Enhanced Option 1-A Stability Solution at
' Peach Bottom Atomic Power Station (PBAPS), Units 2 and 3. The schedule .
was based on preliminary information received from the Boiling Water Reactor !
Owners' Group (BWROG) and contingent upon USNRC approval of the i BWROG methodology (NEDO-32339, " Reactor Stability Long Term Solution:
Enhanced Option 1-A").
Due to significant hardware delays (i.e., Period Based Detection System (PBDS)' 1
- and Flow Control Trip Reference (FCTR) cards), it is necessary to revise the schedule for submittog the associated License Change Application (LCA) to the USNRC and for . implementing the Enhanced Option I-A Stability Solution at l PBAPS, Units 2 and 3, as follows: ;
.. f 97o325oo26 97o319 " N g((,) 3
'PDR ADoCK 05o00277? .l>
P .
PDR L.
pppsppsp.s.it
a
- . March 19,1997 l
- Page 2 1 Original Forecast Data Projected Date PBAPS, Unit 2
- Submit LCA 1Q97 30/Ga
- Implement Solution I-A 3097 1 0/99 l PBAPS, Unit 3 -
} - Submit LCA 1 O98 3 0/98 !
- Implement Solution I-A 3098 1 0/99 The proposed deferral dates for implementation of the solution is based on: 1) hardware delivery delays (i.e., the PBDS and FCTR cards); 2) time needed to perform the Limerick installation and to incorporate lessons learned into the Peach Bottom design and installation package, and; 3) time needed to i accumulate operational experience before final implementation. We anticipate a i USNRC review period of six months following the LCA submittal. l I
I If you have any questions, please do not hesitate to contact us.
Sincerely, k- f of .
G. A. Hunger, Jr.
Director - Licensing cc: H. J. Miller, Administrator, Region I, USNRC W. L Schmidt, USNRC Senior Resident inspector, PBAPS l
.