ML20101P455

Advises That Final Installation of Oil Mist Detection Sys Completed Wk of 841105,per 840625 Commitment.Sys Inoperable During Initial Checkout.Manufacturer Repaired & Balanced Entire Sys on 841115,however,on 841121 Sys Inoperable Again

ML20101P455
Person / Time
Site:	Fort Saint Vrain
Issue date:	12/14/1984
From:	Warembourg D PUBLIC SERVICE CO. OF COLORADO
To:	Johnson E NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV)
References
P-84528, TAC-54373, NUDOCS 8501070138
Download: ML20101P455 (2)

Text

{{#Wiki_filter:' Public Service Company fP Odamade P.O. BOX 840 DENVER. COLORADO 80201 2420 W. 26th Avenue, Suite 1000, Denver, CO 80211 l December 14, 1984 Fort St. Vrain Unit No. 1 P-84528 M @ M DW2 % Regional Administrator Region IV Nuclear Regulatory Commission DEC 3124 611 Ryan Plaza Drive, Suite 1000 j Arlington, TX 76011 Attn: Mr. E. H. Johnson D0CKET N0. 50-267

SUBJECT:

Fort St. Vrain Fire Protection

REFERENCE:

P-84194

Dear Mr. Johnson:

l PSC committed in our June 25,1984 (P-84194) letter that oil mist detection was to be placed above each Hydraulic Power Unit. This detection is the result of our Branch Technical Position 9.5-1, Appendix A Review. Final installation of the detection system was completed the week of November 5,1984, and as discussed in our June 25, 1984 letter, the equipment purchased and being installed to detect oil mist was a "first of a kind" equipment and with all first of a kind equipment there is an element of uncertainty when applying it to resolve a specific problem. Not too unexpectantly, the equipment did not c;;erate during the initial checkout. Both the manufacturer and-supplier were contacted to repair the system and on November 15, 1984 a representative of the manufacturer did repair the equipment, balanced the entire system and placed it in service. Since the initial repair operation, the oil mist detection equipment was again found incperable on November 21, 1984. The manufacturer and supplier /-{0OVh0

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P-84528 Paga 2 were - again contacted, with repair expected to be completed prior to December 31, 1984.

PSC:~ will continue to follow this project, keeping you advised of milestones. If you have any further questions, please contact me at (303) 571-7214. Very truly yours, h W W& tid D. W. Warembourg,_M er Nuclear Engineering Division DW/KB:pa - ) ' ' l 6,,,,nr, m,,,,,,,, men,}}