ML20115D049

Interim Deficiency Rept (D/N 58) Re Titus Model 272 Grille Tension Wire Failing to Remain in Place.Initially Reported on 850311.Existing Tension Wires Will Be Replaced

ML20115D049
Person / Time
Site:	Satsop
Issue date:	03/29/1985
From:	Kohler A WASHINGTON PUBLIC POWER SUPPLY SYSTEM
To:	Kirsch D NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION V)
References
(D-N#58), (DN#58), G3-85-167, GO3-85-167, NUDOCS 8504180664
Download: ML20115D049 (4)

Text

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Washington Public Power Supply Syste_m ,,

Box 1223 Elma, Washington 98541 (206) 482-4428. , - f g g g:

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. March 29, 1985 L_

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T Docket No. 50-508 E U. S. Nuclear Regulatory Commission, Region V r Office of Inspection and Enforcement

" 1450 Maria Lane,-Suite 260 Walnut Creek, Cal dornia 94596-5368 1

Attention: Mr. D. F. Kirsch, Acting Directer

' Division of Reactor Safety and Projects

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s Subjects NUCLEAR PROJECT NO. 3 10 CFR 50.55(e) DEFICIENCY i TITUS MODEL 272 GRILLE 9ENSION WIRES (D/N#58)

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On March 11, 1985, the Supply System notified your office of a potential 10 CFR 50.55(e) deficiency concerning the xbject condition. A subsequent Engineering /Licer. sing evaluation has determined that if the deficiencies remained uncorrected they could have affected adversely the safety of operations of the plant. Therefore, the subject condition is reportable in r accordance with the provisions of 10 CFR 50.55 (e).

[ Attached is a Supply System approved Interim Report. The report provides a description of the deficiency, analysis of safety implications and corrective

actions taken/pl:n. red. A Final R port will be prepared as soon as information on the;..uture of the reduk and a schedule is received from the

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Vendor-(Titus). -

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8504180664 850329 PDR ADOCK 05000508

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Should you have any questions or desire further information, .please contact -

.me directly.

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J A. D. Kohler :(760)

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WNP-3 Program Director DRC/cae Attachment cc: Mr. J. A. Adams, NESCO I Mr. D..Smithpeter,.BPA I Mr. W. L. Bryan, Washington Water Power Company

-Mr. R; V. Myers, Puget Sound Power-& Light Company

.Mr. W. L. Weislogel, Pacific Power & Light acompany Mr. B. D. Withers, Portland General Electric Company Mr.-J. R. Lewis, Bonneville Power Administration Ebasco, Elma.  :

Docket Control Desk - U. S. NRC

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WASHINGTON-NUCLEAR PROJECT N0. 3 (DOCKET 50-508) 10 CFR 50.55 (e) DEFICIENCY

. INTERIM REPORT TITUS MODEL 272 GRILLE TENSION WIRES (D/N#58)

DESCRIPTION OF DEFICIENCY Grilles are used to direct air flow exiting from the conditioned air

• supply ducts.to spaces requiring ventilation.

Titus Model 272 Grilles are used in the following safety-related HVAC systems in WNP-3:

Control Room HVAC Electric Equipment Areas HVAC

-Battery Room HVAC RAB Main Ventilation System

-Diesel Fuel Oil HVAC Diesel Generator HVAC Fuel Handling Building HVAC The Vendor. Titus Products, has- identified the following deficiency in their Model 272 Grilles. If the blades are closed, some of the tension -

wires used .for adjustment of. blade position will not remain in place (i.e., they will fall off the grilles).

The Vendor (Titus) has stated that this deficiency would prevent the HVAC systems ~on which the grilles are used from functioning as designed, since-

-it would cause the grille blades to remain shut, thereby preventing air flow. _ One design- objective of these ventilation systems is to supply fresh tincontaminated air.to various areas of the plant.

ANALYSIS 0F SAFETY IMPLICATIONS The problems with these grilles, if left uncorrected, could reasonably be postulated to adversely affect the safety of the plant, since the result would be to prevent conditioned air flow to critical areas of the plant.

.This would adversely affect efforts to mitigate or prevent release of -

off-site radiation. This deficiency, therefore, is considered reportable under the criteria of 10 CFR 50.55(e).

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.C0RRECTIVE ACTIONS

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Titus has stated that they have conducted ' tests and have determined that the necessary rework would consist of replacing the existing-_ tension wires.

and adding retention clips. It is anticipated that this work will be done in the Vendor's. shop.

At the present. time, the safety-related Titus Model 272 Grilles are not yet installed, and are located in the WNP-3 Warehouse. It is_not known,_ .

at this time, when Titus will accept these Model 272 Grilles back at their plant for rework. Titus Products has been purchased' by another interest.

Since the new . owners are not responsible for this deficiency, .the rework requires a commercial agreement . between - the parties . involved. The date

. for completion of the commercial ~ agreement has -not been established, and

. the schedule for rework is, therefore,. indefinite.

A Final Report.will be prepared as soon as information on the exact nature of the rework and a schedule is received from Titus.

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