ML19309E122

Deficiency Rept Re Unqualified Motor Operator for Trip & Throttle Valve of Turbine Driven Auxiliary Feedwater Pump. Defective Motor Operators Will Be Replaced W/Ie Qualified Pumps Mfg by Terry Corp,Prior to Plant Startup

ML19309E122
Person / Time
Site:	South Texas
Issue date:	04/11/1980
From:	Eric Turner HOUSTON LIGHTING & POWER CO.
To:
References
REF-PT21-80-213-000 SFN:V-0100, SFN:V-100, NUDOCS 8004180421
Download: ML19309E122 (4)

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0 3 M L[std Cld M] Ilouso>n I.ighting & iwer :t o. Itm 1700 lionso,n. reus 77001 71:4 22 m ell April 11, 1980 ST-HL-AE-447 SFrt: V-0100 Director, Region IV tiuclear Regulatory Commission 611 Ryan Plaza Drive, Suite 1000 Arlington, Texas 76102

Dear Sir:

Scuth '; mas ?ccject Units 1 & 2 Docket Nos. STri 50-498, STri 50-499 Unqualified Motor Operator for the Turbine Driven Auxiliary Feedwater Pumo Units 1 & 2 of the South Texas Project Electric Generating Station are each provided with one turbine driven auxiliary feedwater pump. These purnps, which are to be located in the Isolation Valves Cubicle at elevation 13'2", are components of the auxiliary feedwater system whose function is to supply required water to the steam generators for decay heat removal when normal feedwater is not available during plant startup and shutdown and following postulated accidents.

The turbine-driven auxiliary feedwater pumps are supplied by the Bingham-Willamette Company of Portland, Oregon. The turbine drive units are provided to Bingham-Willamette by the Terry Corporation of Windsor, Connecticut. The turbine-pump assemblies have been delivered to the STPEGS site. Specification 3S149MSO43-D, section 3.3.2.2, requires all electrical devices needed for the turbine to perform its safety-related function shall be qualified to those requirements for class IE equipment as specified by IEEE 323 and 344.

Houston Lighting & Power Company was notified by Brown & Root on April 10, 1980, that the turbine drive units are provided with an unqualified motor operator for the trip and throttle valve. This defect could affect the proper operation and safety function of the auxiliary feedwater system. Since the defective equipment is a basic component, the equipment has been delivered to Houston Lighting & Power, and the defect could create a safety hazard, this defect was determined to be reportable pursuant to 10CFR21. Consequently, Houston Lighting & Power Company notified the NRC's Resident Reactor Inspector at the South Texas Project of the defect by telephone that same day.

GOIT Ssif 30 04 16

~f t ~>uston lighting & P(rxer Cem,any ST-HL-AE-447 Page 2 The defective cotor operators will be replaced with class IE qualified . rotor operators by the Terry Corporation prior to plant startup.

Should additional information be required, please contact Mr. Shawn S. Rodgers at (713) 676-7953.

Very truly yours,

,- cq -~~.,u..

E. A. Turner Vice President Power Plant Construction

& Technical Services LRJ:bj r O

Houston thfting & Pow Company ST-HL-AE- 447 Page 2 CC: G.W. Oprea, Jr.

D.G. Barker C.L. McNeese H.R. Dean R.L. Waldrop G.B. Painter A.J. Granger R.A. Frazar M.D. Schwarz (Baker & Botts)

R. Gordon Gooch (Baker & Botts) .

J.R. Newman (Lowenstein, Newman, Reis, Axelrad & Toll)

Director, Office of Inspection & Enfor-- -"

Nuclear Regulatory Commission Washington, D.C. 20555 M.L. Borchelt Executive Vice President Central Power & Light Company P.O. Box 2121 Corpus Christi, Texas 78403 R.L. Hancock Director of Electrical Utilities City of Austin P.O. Box 1088 Austin, Texas 78767 J.B. Poston Assistant General Manager of Operations City Public Service Board P.O. Box 1771 San Antonio, Texas 78296 R.C. Mecke City Public Service Board ,

P.O. Box 1771 -

San Antonio, Texas 78296 t

M.C. Nitcholas City of Austin P,0. Box 1088 Austin, Texas 78767 R.L. Range Central Power & Light Company P.O. Box 2121 Corpus Christi, Texas 78403 l Charles Bechoefer, Esquire Chairman, Atomic Safety & Licensing Board U.S. Nuclear Regulatory Commission Washington,_D.C. 20555 i

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Houston tifr ting & Narr Company ST-HL-AE-447 Page 3 Dr. Janes C. Lamb, III 313 Woodhaven Road Chapel Hill, North Carolina 27514 Dr. Emmeth A. Luebke Atomic Safety & Licensing Commission U.S. Nuclear Regulatory Commission Washington, D.C. 20555 ,

Steven A. Sinkin, Esquire 116 Villita Street .

San Antonio, Texas 78205 Citizens for Equitable Utilities c/o Ms. Peggy Buchorn Route 1, Box 432 Brazoria, Texas 77422 Richard W. Lowerre, Esquire Assistant Attorney General for the State of Texas '

P.O. Box 12548 Capitol Station Austin, Texas 78711 Henry J. McGurren, Esquire Hearing Attorney Office of the Executive Legal _ Director U.S. Nuclear Regulatory Commission Washington, D.C. 20555 4

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