ML19344E251

Part 21 Rept Re Discrepancy in Response Spectra Used in Design of Certain Heating Ventilation & Air Conditioning Equipment.Corrective Action Includes Stiffening Concrete Floor Slab on Which Equipment Is Mounted

ML19344E251
Person / Time
Site:	Washington Public Power Supply System
Issue date:	08/08/1980
From:	Sarsten G UNITED ENGINEERS & CONSTRUCTORS, INC.
To:
References
REF-PT21-80-272-000 NUDOCS 8008280248
Download: ML19344E251 (5)

Text

AII AUtU lb H t'MKI U KtfUKI NU'i it i H1L U.ilI ' rsVJ i JJJ [3 n PART21IDENTIFICATibNNO.

D '2'l2-oc o COMPANYIWE.

~

~

IATE OF LEITER.

f/f/#c DOCKET NO. So-5'13; f a

'/4o

~

IRTE DISTRIBlHED

//g//6 ORIGilRL REPORTg SUPPLDENTARY DISTRIBUTION:

REACTOR (R)[

FUELCYCLE&

SARGBARDS (S) [

fMERIE W IE FILES IEFILES AD/ROI(2)

IE FIES AD/SG AD/RCI AD/ FREI AD/ROI EGI0iG I,II,III,IV,V REGIONSI,II,III,IV,V REGIONSI,II,III,lV,V VENDOR BR. R-IV VENDOR BR R-IV VENDOR BR. R-IV LDEB / FPA N B 5715 ffES / FGE SS-396 NPNDOL AE0D NB 7602 LDEB / FPA M B 5715 NIES / SG SS-881 NRR/ DOE AEDD MB 7602 LDEB/FFA MB 5715 NRR/DSI ASLBP FAI 450 AEOD M B 7602 NMT

~

SAP /SP ff8-7210A ASBP E/W 450 NPR/ DOL CENTPAL FIES 016 CENTRAL FIES 016 ASLBP E/W 450 CBER FIES ( CHRON)

CBUPAL FIES (CHRON)

CENTRAL FIES 016 PDR CENTRALFILES SS-396 CENTRAL FIES (CHROBD LPDR PDR i

PDR TEPA LPDR EDR HA l

EPA

, ' ACTION:

PRELIMINARY EVALUATION OF THE' ATTACHED REPORT INDICATES LEAD RESPONSIBILITY FOR FOLLOWUP AS SFO BELOW:

IE X NRR2 liSS [

OTdER [

~

THIS DOCUMENTpg0Ng@%0' FFMSI

.8008280Qq4 P00R QUAllTTPAGES

i

/c(t' t' S 4

%vgj q.

tnited engineers s _i._,....

30 couth 17th street f5 4UG 111980 Post Office Dox 0223

[f.

. ;;.;g y g,,

T Philadelpnea PA 19101 p'3

.jg 7'04 4MM /g/

6 v

N g-CERT 1FIED MAIL August 8, 19

~

Director Office of Inspection and F.nforcement U. S. Nuclear Regulatory Commission Washington, D. C.

20555 Centlement

Subject:

10CFR21 Report of Dcfner Related to Washington Public Power Supply System Unit _s_Jdp-1 and WNp-4 This report is submitted to provide details of n defcet re-ported to you by telecopicr on August 5, 1980.

A planned nudit. on the use of amplified rcHponmc spectra for eqisipment nnd ntructural design was conducted on the subject WppSS projectn.

A discrepancy was found in the response spectra which had been releat ed to a manufactairer for use in design of certain HVAC equipment.

Since the equipment involved has been fabricated and delivered, corrective action will he to suf ficiently sti f fen the concrete floor slab on which the equipment in mounted to confnrn to the originally n;pecified value of the response spectra.

The use of incorrect an:plifled rer:ponse spectra is a defect similar to ones previously reported and continues to he under inver;tiga-tion by both the Scabrook and WppSS projecta.

Thin particular defect with respect to HVAC equipment mounting on n removable concrete slab is unique to the WPPSS project.

required by 10CFR21, paragraph 21.21(b) (3) are Details as l

contained in the attached report.

This defect has been previously reported by the licensee in

(

accordance with 10CFR50.55(c) on June 6, 1980 and July 7, 1980.

Very truly yourn, -

f

/

,s c.

i.p hs ft:it E.( arsten Vice l'M'i d ent-Power cc:

Regional Director Region V - USNRC

( A a=r**** C*****v ]

1 i

I

(

NAME AND ADDRESS OF THE INDIVIOUAL 04 INDIVIOUALS INFORMING THE 0]MMISSION.

G. E. Sarsten, Vice Presiaent-Power United Engineers & Constructors Inc.

30 Soutn 17ti. Street Philadelphia, Pa.

19101 IDENTIFICATION OF THE FACILITY, THE ACTIVITY, OH TFE BASIC CO*ONENT SUPPLIED FOR SUCH FACILITY OR SUCH ACTIVITY WITHIN TFE UNITED STATES WHICH FAILS TO COMPLY 08 CONTAINS A DEFECT.

Washington Public Power Supp1y' System (WFPSS), Units WNP-1 & WNP-4; the design and fabrication of tne Atmospneric Clean-Up Trains, Tag Numbers HCA-ACT-18 and 20, and the Faq, Tag NumDer ACT-FAN-28.

IDENTIFICATION OF THE FIRM CONSTRUCTING THE FACILITY OR SUPPLYING THE BASIC COMP 0 TENT WHICH FAILS TD COMPLY OR CONTAINS A DEFECT.

Buffalo Forge Company, 490 Broaoway, Buffalo, N.Y.14204, is tne firm that fabricated and supplied the fan. Mine Safety Appliances, Route 2, Evans City, Pa.16033 is the firm that fabricateo and furnisned the Atmospheric Clean-Up Trains.

The fan is located in a fan house designed by United Engineers & Constructors Inc., ano will oe constructeo by University Mechanical Services, P.O. Box 700, Richland, Washington 99352. One of the design input parameters, tne Amplified Response Spectra (ARS) for the design of the above basic components is generatea oy United Engineers & Constructors Inc., 30 South 17th Street, Philadelphia, Pa. 19101.

NATURE OF THE DEFECT OR FAILURE TO COMPLY AND THE SAFETY HAZAR0 WHICH IS mEATED OR COULD 8E G EATED BY SUCH DEFECT OR FAILWE TO COMPLY.

The defect identified is the use of incorrect Amplified Response Spectra (ARS) for the design of the subject Atmospheric Clean-Up Trains, the Fan and tne Fan Housing.

Inis deviation, if uncorrected, coula result in the failure of tne subject equipment to perform the intended safety function ouring ano after an Operating Basis Earthquake (OSE) s.nd Safe Shutdown Earthquake (SSE) event.

THE DATE ON WHICH TFE INFORMATION OF SUCH DEFECT OR FAILURE TO COMPLY WAS OBTAINED.

August 4, 1980.

l IN THE CASE OF A 8ASIC COMPONENT WHICH CONTAINS A DEFECT OR FAILS TD COMPLY, i

TtE NtN8ER AND LOCATION OF ALL SUCH COMPONENTS IN USE AT, SUPPLIED FOR, OR I

GEING SUPPLIE0 FOR ONE OR MORE FACILITIES OR ACTivirIES SUBJECT TO THE l

REGULATIONS IN THIS PART.

l l

i l

l

I

, i Part 1: The specific cefect identified relative to the suoject components pertains to the input parameter for the ARS for a unique location in the Plant.

As sucn, tne defect is not generic in nature to such components (namely, Atmospheric Clean-Up Trains ano Fans) which are useo in the Plant in both the safety-related and non-safety-relatea functions in various locations witnin tne sucject Units WNP-1 and WNP-4.

Part 2:

The ARS input whien is the identified defect in this case, however, is furnished as a cesign input parameter to various safety-related systems, structures and components in the Plant with specific relevance to the incividual locations.

In this respect, the identified defect pertains to the ,eneration ano use of ARS", which is a "Dasic component" in use at other areas of the plant systems, structures and components on WNP-1 and WNP-4, as well as, on Seacrook.

TtE 0]RRECTIVE ACTION WHICH HAS GEEN, IS BEING, OR WILL EE TAKEN: THE NAME OF THE INDIVIDUAL OR ORGANIZATION RESPONSIBLE FOR TE ACTION:

ANO T W LENGTH OF TIME HAS 6EEN OR WILL BE TAKEN TO COMPLETE TFE ACTION.

Corrective Action: The corrective actiun is in three (3) parts:

Part 1:

Specific corrective ac_ tion with respect to the subject equipment:

The removaole concrete slao on which tne subject enmponents are located nas been stiffened to the extent that the resulting ARS is equal to or less than the Design ARS which has been used by the equipment manufacturer.

Part 2: Generic corrective action: Follow-up evaluation anc verification of the ARS values which have been used in the initial oesign of equipment which nave been releaseo for fabrication and delivery to the WNP-1 and WNP-4 Site nas been in progress on tne basis of a continuous audit program commenced late in 1977 and is expected to oe complete by Septemoer, 1981.

Part 3: On-Going Design Verification Program for Plant Structures, Systems ano components: Due to tne nature of the verification program, tne program cannot be concluded without the final as-ouilt plant cata.

The program wnich is currently in progress would systovatically icentify tne input ARS design parameters that have oeen usec in the oesign for all safety-related systems, structures tnd components such that, shculd a defect ce uncovereo as Iesult of tne program, corrective actions can De simultaneously initiated.

The corrective actions, in general, would consist of stiffening of

f o

. t i

a floor, a column, or a beam, or reanalysis to examine oesign marginc, or relocation uf components as necessary. At the conclusion of the program, whien is currently forecasted to be on 6/1/83, the " delivered design" would contain a controlled volume of the Amplifica Response Spectra (ARS) that matches the as-built plant conditions (as-Duilt systems, structures, and components).

Name of the Organization Respons1 ole for_the Corrective Action:

Project Engineering - WPP55 Project United Engineers & Constructors Inc.

30 South 17th Street Philaaelphia, Pa.

19101 The Length of Time that will be Taken to _C_omplete the Action:

Part 1: Verification that the correct ARS has been specified in the initial design of equipinent is estimated to be complete oy September 1, 1981.

Part 2: Verification that the as-built condition of plant systems, structures and components is compatible with the ARS used is expected to concluoe by 6/1/83.

ANY ADVICE RELATED TO Tm UEFECT OR FAILURE TO COMPLY ABOUT Ti-E FACILITY, ACTIVITY, OR BASIC COMPONENT THAT HAS BEEN, IS BEING, OR WILL BE GIVEN TO PURCHASERS OR LI E NSEES.

Repnrt of the suDject defect was made to the Licensee (Washington Puolic Power Supply System) in the following sequences:

On May 2.0, 1980, WPPSS was verbally notified.

On June 6, 1980, WPPSS was notified in writing Dy letter UEWP-80-585.

On July 7,1980, WPPSS was given a follow-up report by UE&C letter UEWP-80-657.

It is Lslieved that this oefect has oeen notifico to tne NRC under the l

rules and requirements of 10CFR Part 50.55 (E).

l

(

.