ML20045D813

Suppl 3 to TS Change Request 92-03 & Suppl 1 to TS Change Request 92-04 to Licenses DPR-44 & DPR-56,respectively, Resolving Concerns Re Exercising of Main Control Room Emergency Ventilation Sys Fans & SBGT Sys Fans

ML20045D813
Person / Time
Site:	Peach Bottom
Issue date:	06/23/1993
From:	Hunger G PECO ENERGY CO., (FORMERLY PHILADELPHIA ELECTRIC
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
Shared Package
ML20045D814	List: ML20045D813 ML20045D816
References
NUDOCS 9306300089
Download: ML20045D813 (3)

Text

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,, c PHILADELPIIIA ELECTRIC COMI%NY NUCLEAR GROUP HEADQUARTERS 955-65 CHESTERBROOK BLVD.

WAYNE, PA 19087-5691 cis> so4 m June 23, 1993 Docket Nos. 50-277 50-278 STATION SUPPORT DEPARTMENT License Nos. DPR-44 DPR-56 U. S. Nuclear Regulatory Commission Attn: Document Control Desk Washington, DC 20555

Subject:

Peach Bottom Atomic Power Station, Units 2 and 3 Technical Specification Change Requests (TSCRs) 92-03 Supplement 3 and 92-04 Supplement 1

Reference:

1. TSCR 92-03, Non-Instrument Changes to Accommodate a 24 Month Fuel Cycle, dated September 28, 1992

2. TSCR 92-04, Instrument Changes to Accommodate a 24 Month Fuel Cycle, dated October 19, 1992

Dear Sir:

In the above referenced letters, Philadelphia Electric Company (PECo) submitted two TSCRs to accommodate a 24 month fuel cycle. The purpose of this letter is to provide additional information regarding two areas associated with the two TSCRs.

Exercising Ventilation Fans i

A concern regarding the exercising of the Main Control Room Emergency Ventilation System (MCREVS) fans and the Standby Gas Treatment System (SBGTS) fans has been discussed. These systems support the operation of other plant systems, and as such the MCREVS and SBGTS are operated during operation or testing of the supported system. The operation of the SBGTS and MCREVS in support of other plant systems would identify significant failures and adequately exercise the fans; however, it is not a functional test of the system. For example, during quarterly testing of the main control room air intake radiation monitor (TS 4.11.A.4) the MCREVS is operated and during the  !

High Pressure Coolant Injection (HPCI) monthly pump operability test (TS 93063000e9 930623 PDR ADOCK 05000277 p PDR s )

\

i U. S. Nuclear Regulatory Commission June 23, 1993

• Document Control Desk Page 2 l 4.5.C.1(b)) the SBGTS is operated. Because of the important supporting l function of the SBGTS and the MCREVS in these tests, the fans are adequately exercised and gross system failures woulu be identified. As stated 1 previously, PECo is committed to the Improved Technical Specifications (ITS).

The ITS includes a surveillance requirement (SR 3.6.4.3.1) to operate the SBGTS every 31 days for a plant-specific number of hours. PECo will be implementing this requirement as part of the overall conversion to the of ITS.

Miscellaneous Administrative Issues The recently approved TSCR 88-08, " Improved Diesel Generator Testing" (Safety Evaluation Report dated March 25, 1993 Amendment 173 for Unit 2 and Amendment 176 for Unit 3) affected the page numbering of our September 28, 1992 submittal. In specific, TS page 218c of the September 28, 1992 submittal has been renumbered 218j because of the Diesel Generator Improved Testing amendment. The renumbered page is included in Attachment 1.

The next clarification concerns page 86a, submitted in our instrument TSCR, dated October 19, 1992. A note regarding the effective date of an earlier TSCR and the indicating daggers in the TS page were deleted for clarity. This deletion was purposefully done and does not affect the 24 month submittal or change any of the analysis done in support of our 24 Month TSCR submittals.

Lastly, two typographical errors have been identified which should be corrected. The corrected pages are included in Attachment 1. The errors are a misspelling on TS page 44 of the instrument submittal and the inadvertent deletion of a lina of TS page 240j(1) of the non-instrument submittal.

This letter is being submitted with the attached affirmation because of the resubmitted TS pages. If you have any questions, please feel free to contact me.

Very truly yours, Lff 0 Wr'y fCV G. A. Hunger, Jr., Director Licensing Section Attachment, Affidavit cc: T. T. Martin, Administrator, Region I, USNRC USNRC Senior Resident Inspector, PBAPS W. P. Dornsife, Commonwealth of Pennsylvania

l .

COMMONWEALTH OF PENNSYLVANIA :

ss.

,i COUNTY OF CHESTEP.  :

G. R. Rainey, being first duly sworn, deposes and says:

That he is Vice President of Philadelphia Electric Company; the

) Applicant herein; that he has read Technical Specifications Change Request 92-03 Supplement 3 and TSCR 92-04 Supplement I for Peach Bottom Facility Operating Licenses DPR-44 and DPR-56, and knows the contents thereof; and that the statements and matters set forth therein are true and correct to the best of his knowledge, information and belief.  ;

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Vice President l

Subscribed and sworrj to M

beforemethisOSday of it e ^ 1993.

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